2021 GMC Yukon Complaint Log

20221 GMC Yukon Denali Suddenly comes to a stop ,” it brakes hard “ It acts like when you are almost gonna hit someone and brakes engage so hard. Jerks everyone to the front !no other lights coming on or anything else! For now it’s been doing it at slow speed , really don’t wanna experience it at a high speed , pls help these vehicles are so expensive to be dealing with this . This is my wife and kids vehicle

The lighting on the entire interior infotainment area will randomly go bright and dim all by itself. I was almost in an accident on the interstate due to this. It was blinding and distracting to have the lighting dim and then go bright. It has been randomly doing this for about a month. I called GMC and they said they had no record of this happening on other vehicles, however when I searched for the issue with my vehicle, I realized other GMC owners have experienced the same issue. I was able to get a video of it happening one morning while waiting in my driveway to drop my kids off at the bus stop. I was in the parked position. There are no warning or messages when the lighting malfunctions, so I am not at all prepared when the car turns the lighting to MAX brightness. It poses a risk when driving by blinding the driver, causing the driver to loose focus while driving trying to adjust the lighting back to dim. It is an unnecessary distraction. The dealership couldn't confirm any malfunctions in my car. As previously stated, I have a video of the malfunction, but I am not able to upload it. I am willing to send via email.

The contact owns a 2021 GMC Yukon. The contact stated while driving 25 MPH, upon accelerating from a light, the vehicle began to shake and decelerated and failed to accelerate and exceed 25 MPH. The vehicle accelerated, jerked, and stalled. The check engine warning light was illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the fuel pump control module needed to be replaced. The mechanic informed the contact that the parts were on backorder. The vehicle was not repaired. The contact stated that the failure was related to NHTSA Campaign Number: 21V739000 (Fuel System, Gasoline). The manufacturer was notified of the failure and opened a case. The failure mileage was approximately 67,150.

My family and I purchased this vehicle brand new in August 2021. We live in Phoenix Arizona and bought it from Earnhardt Buick & GMA in Mesa, AZ. While driving the vehicle in the last few weeks I personally could smell a strong odor of fumes in the cabin when the A/C or Heater were on. After a few days of noticing it my nose got numb to the odor as I dismissed it and kept driving the vehicle. After about a week, I had my two kids in the vehicle, they both noticed and made comments on how strong the odor of fumes were. We decided to not utilize the A/C or the Heater and contacted the dealer for investigation and repairs. This is a very serious health hazard as I and my family were exposed to exhaust fumes entering the cabin. For a few days and nights I suffered headaches and some dizziness as I was driving mostly the vehicle. We did take it to Earnhardt Buick & GMA in Mesa, AZ for investigation and repair. The maintenance supervisor confirmed that indeed somehow the exhaust had some crack that allowed fumes to enter the ventilation system. The Vehicle is now under repair at the dealership. I was notified by the maintenance advisor that this defect would not be cover under warranty as the vehicle is out of manufacture warranty. I Also had purchased an extended warranty (Platinum) which they had stated "bumper to bumper", but this also does not cover the manufactures defect. There were no warning lights associated with this problem. I would strongly recommend that inspections be made, especially if some drivers have problem with smell and odors. This is a big health hazard. Thank you for your attention. [XXX] . [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Acceleration failing. Knocking of motor, winding sound, a huge clicking sound when accelerating, and engine burning very excessively. We have 4 children and its very unsettling to say the least on a 100,000 vehicle we paid for. I hope and pray you include our vin number with the 6.2 recall as the dealer is well aware of this problem long before the current recall. It's very unfortunate that our vin wasn't part of this very serious safety issue. Thank you

While traveling on the interstate at 70 mph with husband and child inside, the vehicle started shaking and stalled. Had to glide off onto an exit ramp where the vehicle stopped and would not restart. Onstar ran diagnostics and came back with code P129F.

On Monday, November 20, 2023, I was operating my vehicle on Interstate 80 in western Nebraska when suddenly and without any notice, apparently an engine lifter in cylinder 8 failed causing the vehicle to lose power while in heavy semi-truck traffic, while operating at approximately 80 mph, forcing me to avoid a collision. Since the incident, I have become aware that this is a known problem with GMC, and that they have extended their power train warranty under certain circumstances because so many engine lifters are failing, many without notice or warning. My vehicle is serviced every 6,000 miles at a GM dealer and also operates the OnStar system. Neither the dealer nor OnStar detected the failure or warned me of any issues that cause a stall while in traffic. Fortunately, I am an experienced driver and was able to safely pull the vehicle off the highway.

2 different times I have been driving once at a high speed of 70 on the highway and then driving 15-20 miles an hour today my automatic braking engaged and threw me forward which is a very scary feeling. I have not taken it in for service for that as it had only happened once a few months ago and there have been no warning lamps indicating an issue.

The roof of the car has a metal defect that is causing the paint to bubble off. The manufacturer initially misdiagnosed the problem as a paint issue. The car was repainted but the paint is coming off again within a year. I am afraid that the integrity of the roof is compromised by corrosion. The manufacturer claims that the car is no longer in warranty and does not have to repair it.

I was driving about 40 mph on a rural road when my vehicle stalled. I thought I was out of gas but I wasn’t. I tried to turn it around but I had no power. I pressed the gas but it would not do anything . It would not crank back up. I called my husband and he came and put gas in it and it still wouldn’t work. I was left stranded in the middle of the road on a curve. No warning lamps were on that I could recall. I’m having it towed to the dealer today. There are 39K miles on the car.

While driving at a low speed the vehicle suddenly hesitated, loss power and shut off. After several unsuccessful attempts to restart I had to have the vehicle towed to a local GM dealership. Their assessment was that the Fuel Pump Control Module was the cause but but my VIN was not associated with recall NHTSA Campaign Number: 21V739000 and they will not cover the replacement of the module that is now nearly impossible to get a replacement part for.

GMC has not responded for the recall of the engine. My vehicle is running bad. I need the vehicle to be service as soon as possible. My saftey depends on GMC keeping there promise to repair the recall engine.

In September 2023, mere months after purchasing this vehicle, I was driving on the Mountain Parkway in Eastern Kentucky. Traveling the 70 mile hour speed limit, everything in the vehicle shut down, including my ability to use my breaks. Luckily, I was able to safely coast to the side of the road, which left me quite vulnerable as patrons passed at 70+ miles per hour. There were no advanced warning such as lamps, messages, or other symptoms of a problem. I had the vehicle towed to Hutch Chevrolet in Paintsville, KY where they indicated to me that the crankshaft locked up due to a crank bearing failure. They had to replace the engine and I was out of pocket $12,631.79.

Car suddenly turned off while driving. Thankfully I was only going approx 10 miles an hour. Screen asked to restart engine but it would not start. Got stuck literally in the middle of road. Was not able to put into neutral to remove from roadway. The assessment from GMC dealer was a failed fuel pump control module. 900 miles outside of warranty. This could have been a much more serious and dangerous situation if I had been traveling on a busy highway at a much higher speed. This should be investigated further as my car is just now 2 years old and well maintained.

On Sept 17, 20123 my SUV stalled while driving in heavy traffic causing a sudden and unexpected loss of power and putting me in jeopardy of a crash My vehicle was towed to the dealer as it would not start. The dealership replaced the Fuel Pump Power Control Module. There is a recall for this part on 2021 Yukon. My vehicle was not included in the recall. Further, this make /year SUV has 11 safety recalls . I contacted GMC and opened a case. No one has contacted me to discuss the issue. I called several times and have been provided little information other than “the Regional Service Rep” will contact me and that GMC sent an email to the dealership. I have been repeatedly told my vehicle is not part of the recall. Logic dictates otherwise. I do not believe the part failure was a coincidence. Rather, the recall should have included my SUV. Further, GMC should contact me to discuss this issue as a consumer with a safety concern. I cannot operate this vehicle with confidence knowing that some of the other recall items could cause a sudden loss of power. I do not have trust in GMC to accurately identify vehicles with issues. I want GMC to explain how any driver should feel safe to operate a vehicle on the roads under these facts- knowing a vehicle was not included in one of the recalls and could be left out of others. I also question why GMC makes a vehicle that cannot be put in neutral without the vehicle running. This creates a whole other safety issue if the vehicle stalls on a highway and needs to be pushed off the road. I had an issue with the tow because of this fact. In summary for required information: 1)Unknown if the part is available as the dealer removed it 2) I was in traffic and my vehicle stalled 3) The dealer confirmed the part needed to be replaced as the SUV would not start 4) See number 1 5) There were no warning lights or other. The SUV stalled. I know GMC wants to make a profit. It should not be at consumer’s safety and peace of mind..

Service safety restraint system came on my vehicle and I just purchased this vehicle 3 weeks ago.

Out of no where the right side makes a clicking noise when I turn

The contact owns a 2021 GMC Yukon. The contact stated while driving approximately 80 MPH, the vehicle stalled. The contact was unable to veer to the side of the road and was unable to restart the vehicle. The check engine warning light was illuminated. The vehicle was towed to the dealer, where it was determined that the fuel pump power control module had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and a case was opened. The contact was awaiting a call back from the manufacturer. The failure mileage was approximately 29,000.

This GMC Yukon underwent an over the air update in remote Wyoming and was almost undriveable due to steering problems and brake malfunction. Also engine and transmission problems. It has been awaiting repair, but I have been informed that no fix is available because of transmission defect. No parts available We were nearly stranded.

At approximately 14,000 miles my 6.2L V8 engine had a lifter go bad on the truck. GMC covered this with warranty at the time. The truck seemed to perform well until I hit approximately 94,841 miles and then a lifter went bad again. I had an 85,000 warranty and this repair was not covered. I was quoted $6,500 to repair the truck by the dealer. I made a social media post and tagged GMC. GMC reached out to me directly and took $1,000 off of the repair and I paid $5,576.48 out of pocket to repair the lifters. GMC also offered an extended 2 year warranty on the engine at that point that is expires in September of 2025. I currently have 143,000 miles on the truck and my intent was to drive this truck for as long as humanly possible. I was told that this was designed to be a 500,000 mile truck. My engine is now burning approximately 2.5 to 3.5 quarts of oil between oil changes and I'm worried that there is something else wrong with the engine and that another lifter will go bad. I love my truck and can't afford another $6,500 to $10,000 repair. I sometimes get this car and other cars serviced for an oil change at the Mavis Auto in my neighborhood and the shop director who has been in the business has a friend who is a mechanic with GMC and he told me that his friend was given directive that if one lifter went bad 100% of the lifters, the housing and CAM shafts were to be replaced. (I'm not a mechanic so I may be missing some details here) Anyway - I've been informed about the NHTSA Investigation Into the V8 Engine in my truck which has opened my eyes to other mechanical defects associated with my truck. I'd like to make this report to protect myself and my investment. I do not want incur additional expenses related to manufacturer defects and I do not want to feel unsafe on the road with this vehicle.

I was driving on the interstate on a low speed and my SUV came to a complete stop with no notice. Nothing was in the road or close in front of me. Jerked me to the front and seat belt left a red spot on my neck from the seat belt, scared the crap out of me. I thought I was hit from behind. The is a hug safety concern that needs to be recalled and fixed immediately before it causes an accident.

The vehicle was not starting and after 3 attempts it started, but a strong smell like gasoline came inside the car, and as I checked, fuel was running all the way to the ground. Major hazard! The vehicle was taken to the dealership and diagnosed with a leak in the High-Pressure Fuel Pump. According to the service advisor NOT COVERED under powerterain warranty. The part just went bad, and needs to be replaced. However, the vehicle has been in the service department since July 3 (Now it is July 18) and the part is in back order and no news as of when my vehicle will be fixed. My vehicle is a 2021 and I do not understand how a part is not available, or discontinued (according to parts department). I need my vehicle fixed!

The contact owns a 2021 GMC Yukon. The contact stated that while driving at an undisclosed speed, the contact noticed that the front windshield was extremely blurry. In addition, the contact stated that it was a safety failure, especially while driving at night. The contact stated that while driving at night, the failure was extremely unsafe. The vehicle was taken to the dealer, and it was confirmed that the front windshield was defective. The contact was informed that the front windshield needed to be replaced. The vehicle was not repaired. In addition, the failure occurred previously in June 2023, and the repair was covered under warranty. The manufacturer was made aware of the failure, and a case was filed. The repair was denied. The failure mileage was approximately 25,000. The VIN was unavailable.

The contact owns a 2021 GMC Yukon. The contact stated that upon the start of the vehicle, the vehicle independently reversed without warning upon touching the gear shifter. The vehicle first reversed into a cement barrier and then lunged forward into an intersection while she repeatedly depressed her brake pedal to no avail. The contact managed to call 911 and while speaking with an operator, she was able to regain control of the vehicle. The contact crashed into a parked vehicle as well as a barrier during the failure. Once the contact regained control of the vehicle, she pulled into a gas station where she was met by police. A police report was filed. The contact suffered mental anguish as a result of the failure. Due to the failure, the vehicle was towed to a dealer where they were unable to duplicate or diagnose the failure. The vehicle was then towed to an independent body shop where it remained in their possession. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 20,000. The VIN was not available.

The vehicle had a sudden loss power shortly after i started the vehicle. When I pressed down the gas pedal, the vehicle turned off. It was only a 20 mph zoned residential neighborhood so I was able to safely coast to the side of the road. I dont think i could have safely gotten to the side of the road if it had been on any type of a multi lane road. There was no warning, no lights, no sounds that there was a problem. I had the truck towed to the local dealership as i was 120 miles from home. The mechanic at dealership said it was a faulty “fuel pump power control module“ and that they are failing a lot. Last I heard that the part was on nationwide back order. There was a recall for this very same problem over a year ago but my vehicle is not part of the recall. Yet the problems are still occurring with many similar vehicles (Tahoe / Yukon)

The contact owns a 2021 GMC Yukon. The contact stated while stopped at a traffic signal, the engine started revving without the accelerator pedal being depressed. The contact stated that the vehicle occasionally independently accelerated. The contact state that the failure also occurred while the vehicle was in park(P). The contact stated no warning light was illuminated. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle had not been diagnosed or repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 17,000.

The contact owns a 2021 GMC Yukon. The contact stated that the vehicle failed to start. The vehicle was towed to the dealer, where it was diagnosed that the fuel pump control module needed to be replaced; however, the replacement part was on backorder. The vehicle was not repaired. The manufacturer was made aware of the failure and informed the contact that they would assist in expediting the replacement part. A case was opened with the manufacturer. The contact related the failure to NHTSA Campaign Number: 21V739000 (Fuel System, Gasoline) however, the VIN was not included in the recall. The failure mileage was approximately 11,000.

Roof leak on 2021 Yukon w/ moonroof. Happened during an intense ice/rain storm while vehicle was parked on an incline with the front end up and rear end down. Water poured in through all 3 rows, including the headliner, dome lighting, front dash electronic panel on PSG side, and lastly the trunk. Dealer inspected the issue 4 days later, in which they water tested the vehicle with a garden hose indoors in a garage bay when temperatures are above 65 degrees, and on a flat floor. They stated they could not replicate the issue, which of course they couldnt because the dealer does not have the proper testing capabilities to do cold weather testing. They put my vehicle outdoors and allowed snow to fail and melt and it didnt have water come in, which was also above 36 degrees and on a flat parking lot. Dealer was not able to fix the problem and would not replace the headliner, even based on the video evidence I had of the water slooshing in the headliner and pouring out of the dome lights and onto the seats in all 3 rows.

The contact owns a 2021 GMC Yukon. The contact stated that while shifted into drive(D), the accelerator pedal was depressed, and the vehicle lost motive power, and several unknown warning lights were illuminated. The contact stated that the check engine, stability control, and several other warning lights were illuminated. The contact stated that the vehicle was making abnormal whining sounds, and the vehicle failed to accelerate above 20 MPH. The contact had been experiencing the loss of motive power with the vehicle for approximately 2 years; however, the failure was intermittent. The contact had taken the vehicle to a local dealer on several occasions; however, the failure persisted. The contact notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); and the vehicle was taken to a local dealer for the engine to be tested. The contact was advised by the dealer that the engine had passed the test, and a higher viscosity oil was added, and the oil filter and oil filler tube were replaced, along with updating the manual. The vehicle was repaired; however, it was still experiencing a loss of power with several warning lights illuminated. The manufacturer was made aware of the failures. The failure mileage was approximately 42,000.

Service Safety Restrain System message keeps appearing after taking to dealer a few times. It will go off and on intermittantly and not sure the airbags are actually functional. This seems to be a common issue based on an internet search across multiple GM products that does not have a known fix. Also, the driver seat shifts slightly when making turns.

The contact owns a 2021 GMC Yukon. The contact stated that while driving approximately 30 MPH and accelerating to approximately 40 MPH, another vehicle suddenly pulled in front causing the contact to apply the brakes. While attempting to apply the brakes, the brake pedal went to the floor. The traction control, ABS, ECF, and check engine warning lights were illuminated. The contact then pulled over to the side of the road where the vehicle eventually coasted to a stop. The contact drove the vehicle slowly to the residence. The contact had the vehicle towed to the dealer who diagnosed that the brake master cylinder and ECF needed to be replaced. The vehicle had not been repaired. The manufacturer was made aware of the failure and opened a case. The approximate failure mileage was 24,000.

I own a 2021 GMC Yukon Denali that had TOTAL BRAKE FALIURE last Tuesday. I had it towed to a local GMC dealer and are repairing it under warranty. I was lucky to be on a back road when my brakes went out. I had no warning lights come on prior to hitting the brake pedal and was able to coast to a stop on the shoulder When I applied the brakes, the pedal went to the floor and did nothing. You can't stop the car with the parking brake because it is electric. My concern is what if I was on a busy road when this happened or what if this happens to a family in traffic they could be seriously hurt or worse yet killed. I do have good photos of my instrument panel with all of the warning lights coming on after I tried to stop. In good conscience feel that I have to at least try and report this to GM, the state and anyone else that will listen. If nothing comes of this at least I tried and just hope no one gets hurt if this happens again. My wife refuses to ride in that vehicle until I have solid answers. The dealer said they will have my car repaired this week and are replacing the master cylinder and ECS This is fine but why did it happen and how can I be sure it won't happen again? I believe in GM and have a 2023 Yukon Denali on order. I would hope that after 3 years of this model they have most of the little quirks worked out. A rep from GM did contact me and at first was talking about buying my car back but changed that today. My case number is 9-8497380349 . The problem is I have no idea when my new car is coming in our should I just cancel it and find something else. In my opinion this is a very serious problem.

The contact owns a 2021 GMC Yukon. The contact stated that while driving at an undisclosed speed, the odometer was inoperable. There was an abnormal odor of fuel while starting the vehicle. The parking brake and TPMS warning lights were illuminated and flashing. The parking brake was inoperable. Additionally, the seat belts were inoperable. The contact stated that there was a cut in brake line. The vehicle was taken to the local dealer where it was diagnosed and determined that the brake master cylinder needed to be replaced. The vehicle was repaired but the failure persisted. The manufacturer was contacted but provided no additional assistance. The failure mileage was approximately 60,000.

The contact owns a 2021 GMC Yukon. The contact stated that while driving at an undisclosed speed and completing a turn, the forward warning collision system alarm sounded, but the vehicle failed to activate automatic emergency braking. As a result, the vehicle collided with another vehicle ahead. The air bags did not deploy. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the ABS. The vehicle was not repaired. A police report was not filed, and no injuries were reported. The manufacturer was not notified of the failure. The failure mileage was unknown.

I had just left the house driving through my neighborhood at about 35 MPH when for no reason the emergency braking engaged. The road was deserted, no other vehicles, pedestrians, dogs or objects in roadway. There was a momentary red dash alert, but I didn't have time to read it.

One bank of lifters went out while under warranty and were repaired then the other ones went out shortly there after.

On a road trip out of state we stopped for gas. We got back on the road and few miles out the car suddenly slowed and gave a message on the screen something about acceleration. We pulled over and next the reverse didn’t work. We stayed overnight then next day the reverse still did not work. We were able to place in drive and continue on but we don’t have fully functioning reverse mode.

After pulling out from parking lot into roadway, steering wheel locked up (right) and vehicle proceeded uncontrolled into a telephone pole - injuring driver. Driver stage 1 & 2 together with seatbelt pretensioner deployed upon impact. No warning lamps or defect symptoms prior to time of failure. Inspection revealed DTC codes for power steering of U0420:00 (invalid data received from power steering module) and U3000:49 (control module internal malfunction). Scanner evidences power steering position sensor data not being reported. Vehicle VIN indicates that it was included in NHTSA recall 21V455000. Power Steering Component Part Nos: 85103817, 848935231 and 85116776.

Total Engine Failure. Cause UNKNOWN, Driving on highway from family vacation. For 1-2 miles prior to incident car begins running rough, High RPMs, Engine pressure rising. Receive a warning on dash. 'Engine shutting down. No prior warnings or issues in the vehicle life. Pull over' Engine will not restart. Have to call two tow drivers, neither are able to get engine into neutral to tow. Second tow driver uses makeshift skids to pull car onto tow truck. Is towed to nearest GMC dealer. At next business day the car is inspected and prognosis is total engine failure. This was a 2021 just over a year old with 22,000 miles. Vehicle shut down every person in vehicle could have been injured if we had been unable to pull over to a safe location, were driving 70mph on highway.

The contact owns a 2021 GMC Yukon. The contact stated that while driving approximately 5 mph the vehicle suddenly stalled. The contact had to press the accelerator a few times before the vehicle moved. Then after reversing out of a parking space then attempting to put the vehicle in drive and accelerate forward the vehicle stalled instead. The contact was unable to recall any warning lights. The vehicle was not able to go into neutral. The vehicle was towed to the dealership who diagnosed that the fuel pump module failed and needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 9,000.

The contact owns a 2021 GMC Yukon. The contact stated that while the vehicle was idling in a drive-thru, the vehicle lost motive power and stalled. The contact stated that no warning lights were illuminated. The contact stated that he was able to restart the vehicle and drove the vehicle with no issues however, the next day the failure recurred. The vehicle was towed to the dealer where the failure was diagnosed as a power control module malfunction. The contact stated that the power control module was replaced under warranty. The contact stated that failure recurred several weeks later. The vehicle was towed back to the dealer where the failure was unable to be replicated. The vehicle was test-driven at the dealer for about 50 miles and no repairs were completed. The contact stated that the failure recurred for the third time and was awaiting a tow to the dealer. The contact related the failure to NHTSA Campaign Number: 21V739000 (Fuel System, Gasoline) however, the contact was unsure if the vehicle was included or had been previously repaired under the recall. The manufacturer was notified of the failure and a case was opened. The contact stated that he was awaiting a call back from the manufacturer. The approximate failure mileage was 5,400.

We have a 2021 Yukon Denali. It has just over 12,000 miles on it. My wife called me In a frenzy today saying the motor was making a poping noise and it was pulling her on the interstate. She was very concered, but managed to make it home From Her 15 mile exit. When she got home, it was evident that the lifters are to blame For This incident. GMC needs to recall all these 2021 GMC Yukons with all these lifter problems. Very unsafe. We plan on getting rid of the vehicle.

My blind spot warning light and signal doesnt work all the time. for example, if a pass a car, or a car passes me at a speed of more than 5 miles per hour, there is no notification from the blind spot warning light in the mirror, or an audalble signale either. i have taken the car to the GMC dealership 3 times and i was told that is normal, and nothing is wrong. I own other GMC models and i have never experianced this intermitant issue.

My transmission had to be replaced back in December of 2021, and now I have taken my truck back to the dealership for transmission problems again, the transmission is slipping again, driving rough and now im getting a safety restraints message and the airbag picture is coming on

On Friday October 22, 2021 around 7:20am as I was driving my children to school I was driving around 40 mph when suddenly I received an alert on the dashboard saying “brake system fail”, I then proceeded to brake to make sure my breaks were working when I noticed they did not work. I then started pumping the gas pedal repeatedly to make the vehicle stop. My car was not stopping and my children and I panicked and started crying. As I was getting closer to a vehicle and ready to crash I swerved the vehicle to the right where it was just an empty lot. I continue to press and pump the brakes until the vehicle came to a complete stop. I took pictures of the dash board once the vehicle was completely off. My Vehicle was towed to my house shortly after. I refuse to drive that vehicle after the terrible experience that jeopardize the life of my children and myself. We have suffered emotional distress.

The contact owns a 2021 GMC Yukon. The contact stated while stopped on the highway a Crown Victoria crashed into the rear driver's quarter panel and a Honda Civic crashed into the front bumper of the vehicle. The air bags failed to deploy. There was a police report filed. There was no reported fire. The contact sustained pain and medical attention was provided. The vehicle was towed to an independent mechanic. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was notified but, no further assistance was provided. The failure mileage was approximately 7,000. The contact stated there was visible damage to the rear axle and fuel tank.

I was involved in a vehicle accident on 10/6/2021 where my vehicle was stuck by an uninsured motorist driving recklessly on the interstate causing a total of 4 car collision. My vehicle was a a 2021 GMC YUKON SLT SUV, in which I was struck on rear drivers side quarter panel and again by another vehicle in the front bumper by another vehicle that struck in the rear bumper by the reckless driver. With my vehicle being struck by two vehicles I was shocked to learn the Onstar safety security features did not detect or contact me regarding the accident. It wasn’t until the wrecker driver arrived to pull my vehicle onto the tow truck that I received a diagnosis notification email from o star about my antilock braking system. Although I was wearing my seat belt, the impact of the collision was very shocking, my chest and neck struck the steering wheel, my glasses were knocked completely off my face on to the passenger side floor board, my personal belongings in the passenger seat, were thrown and scattered over the passenger floor area. Once the emergency authorities were on the scene everything was about over I contacted Onstar via phone, and asked why wasn’t I contacted or my accident detected, and the call taker/on star representative advised me because my airbags wasn’t deployed, they did not receive a notification or alert regarding my emergency. I have attempted to make contact with Onstar several times since the accident and as of today I have yet to get an answer of why my air bags did deploy and why the emergency sensors did detect the impact notify emergency services as this is a feature that i was charged for monthly and added protection that I counted on to assist me but very much failed me at my time of need.

Engine failed on my new vehicle. GM is aware of faulty lifters produced over roughly a 3 month period. My vehicle has been confirmed to have those faulty batch lifters. At this time GM is only replacing lifters on the side of the engine that failed. The local dealership is having 2-3 of these come into the service shop per day. This is a major problem and I am being told it could be 2 months before I get my vehicle back. When I get the vehicle back I want it fixed properly and safe to drive. I don't want my family broken down on the side of the road due to GM knowingly not replacing a faulty product let alone the inconvenience of not having the vehicle again for repairs.

A/C system draining into drivers side floor area. Water from the A/C system is not draining properly and causing water to collect under the carpet on drivers side, leading to mold, bacteria and potentially harmful to people with respiratory issues. After researching various Internet forums, this seems to be a common issue in 2021 Yukon and Tahoes. The dealership will be investigating the issue tomorrow.

GMC Yukon Denali SUV 2021, push rods and lifters in motor are bad, this could have cause an accident due to SUV stopping in traffic or on the highway. Please help with this safety issue. The GMC Denali SUV 2021 only has 7000 miles on it, it new. I thank you in advance for you support. Regards George L Patterson