2018 Chevrolet Suburban Complaint Log

Odometer Fraud. The contact purchased a 2018 Chevrolet Suburban. The contact stated that while purchasing an aftermarket warranty coverage, the warranty company informed the contact that there was a mileage discrepancy based on the Carfax report. The vehicle was a dealer sale. At the time of purchase, the mileage was 123,959; however, the Carfax report listed the mileage at 129,000 one month prior to the purchase.

The transmission just stopped working no warning just wouldn’t go into gear. Then I turned it off and back on and was able to limp home it’s slipping bad .

Transmission problems 124,994 miles . It's the same defects as the 2019-2025 defects.

The contact owns a 2018 Chevrolet Suburban. The contact stated that on several occasions, while the vehicle was parked and running, or while driving at undisclosed speeds, the vehicle lost motive power. There was no warning light illuminated. Occasionally, the vehicle was able to be restarted; however, on other occasions, the vehicle required towing. The vehicle was taken to the dealer, but was not diagnosed or repaired. The contact stated that the battery cable and ignition switch were replaced; however, the failure persisted. The dealer informed the contact that the vehicle was unsafe to drive; however, the failure could not be duplicated. The manufacturer was made aware of the failure. The approximate failure mileage was 208,257.

1.) January 29 2026 @6:00PM Vehicle was in use. Driver accelerated to avoid another vehicle and the engine loss all power. When pushing on the accelerator the tachometer would increase as if I was reving the engine however there was no power. SAFETY ISSUE: With power completly lost, I had to coast over to the should of highway 10 and sit on the shoulder. Vehicle had to be turned off and restarted in order for the vehicle to have power. ................................................................................................................................................................................................. 2.) March of 2021 - Vehicle was in use. Driver accelerated to merge with traffice and the engine experienced a loss of all power. When pushing on the accelerator the tachometer would increase as if I was reving the engine however there was no power. Driver contacted ON-STAR seeking assistance. ON-STAR rep advised that I pull over onto the shoulder of the highway, turn off the vehicle, then turn it back on which temporatily worked. SAFETY ISSUE: With power completly lost, I had to coast over to the should of highway 60 freeway and sit on the shoulder. Vehicle had to be turned off and restarted in order for the vehicle to have power. ACTION taken: Vehicle was taken to a GMC certified dealer and the "CONTROL CYLINOID VALVE & TRANSMISSION CONTROL MODUAL ASSEMBLY WERE REPLACED. First incident the repair was under warrenty and there was no expense to the owner Second incident the repair was not under warrenty and owner is required to pay repairs.

My 2018 LT Chevy suburban with 110000 miles has been giving me transmission and motor problems. I took it to chevy vannuys and they took 3 days and did nothing. I saw a recall on line for the same year. Explaining about transmission problems. Where can I go to have it fixed.

I've taken this SUV to the Chevy dealership 4 times now for the same issue. SUV will not start at times then starts, it will even turn off on the road without warning. New Battery and Chevy can not find out issues $500.00 later. The brake pedal becomes hard to push down, and it will not start: wait 10 mins or so and it will start. Even the remote start at times will not work. Chevy has had it for 30 days at a time and I'm being told to bring it back when it happens, how do I that!

I am reporting a safety issue involving a Cybex Eternis S child car seat. The seat was manufactured on 02/28/2020 and has a printed expiration date of 02/25/2030, indicating a 10 year usable life. At approximately five years of use, the head impact foam failed and is broken into two separate pieces. The foam pieces are detached. This foam is a required safety component. Cybex customer service confirmed in writing that if the head impact foam is detached or broken into separate pieces, the seat does not meet safety requirements and should not be used. Cybex also confirmed that no replacement part is available and no repair or remedy is offered. As a result, the seat is unsafe and unusable halfway through its stated usable life, with no ability to repair or replace the failed safety component. This raises concerns about product safety support for child restraint systems marketed with extended usable lifespans.

Transmission will not go into drive or reverse. This also happens when car is in drive going down the road it will all of a sudden lose power and not go when pressing gas pedal. Vehicle has to completely shut off several times before it will go back into gear. No warning before it started. This can be dangerous when it happens in traffic and I can’t move car out of the road. It has not been inspected yet. Also blind spot warning does not always says it needs serviced.

Wheels 22" Chrome upgrade from the standard wheels from the factory The tire bead where the chrome meets the interior alloy metal corrodes. Thetires start losing air pressure. The tires should be 35 PSI. The front tire dropped to 23 PSI making sterring pull to the right. This is a problem with all 4 tires on the 2018 Chev Suburban Premier. I need to check tire pressure weekly

Transmission has to be replaced due to transmission slipping and delayed shifting under heat and prolonged highway driving. This issue also causes SUDDEN hard shifting, hard breaking, shaking of the steering wheel, along with grinding of gears!! This is a safety issue to to no warning signs at all along with a sudden drop in speed and power!! While driving on the interstate or highway this sudden change can cause the vehicles behind you to rear end you or cause a pile up!!! The driver has no control of vehicle when these issues happen!! A loss in control due to shaking of the steering wheel is a huge issue!!! Lack of shifting or hard shifting causes a SUDDEN stop of vehicle with no warning signs while driving!! It is going to cause a crash!!!! These are serious and dangerous issues that Gm will NOT do a recall for!! GM is aware of the issues due to Suburban, Tahoe and Silverado vehicles in the year models 2018-2023 having this reoccurring issue!!! I recall needs to be done to save someone’s life!!!!! I have only had my suburban for 8 months!! I was not made aware of this issue at all!!!!!! This also causes rough idle!!!!!!!!

My vehicle completely shuts off while driving. All of the components on the dash and even my steering wheel moves into the prestarted vehicle position. It has happened 3 times in the past week now. One particular instance, I was on the highway and thankfully it came back on immediately before completely stopping but shutting off while driving 65mph is so dangerous.

No official incident has happened yet, but the brake assist kicks in, yet does not work until it's revving engine to over 4000rpm, which causes a sudden jerk and scary sounds from engine. I have had a few instances where the vehicle did not want to stop almost causing an accident, and these have happened without anything in the car other than my daughter who is 2 and myself. The most recent problem is a weird rattling sound while going uphill. Before this going uphill is extremely sluggish, where I have the gas peddle almost to the floor, but nothing happens other than decrease in speed until it finally, about 30 seconds-1 minute, where it kicks into overdrive. Even then, speed does not increase by more than 5-10 mph depending on the incline. I have not brought it to get looked at yet, as I've seen these issues have been reported by numerous consumers without any recalls being sent out other than the breaking system update.

Dear NHTSA, I am submitting this complaint to report a recurring and potentially dangerous issue with the transmission in my 2018 Chevrolet Suburban, which I purchased brand new in 2018. At approximately 60,000 miles, I experienced severe transmission issues that led to a complete transmission replacement. Now, at around 133,000 miles, I am encountering the same symptoms once again. The transmission makes a loud clunking noise during acceleration and braking, and shifts gears abruptly and harshly. These symptoms appeared suddenly, with no warning lights or prior alerts. This problem poses a significant safety concern. The vehicle sometimes struggles to accelerate properly, making it dangerous to merge into traffic. Additionally, the forceful shifting makes the vehicle feel unstable and unpredictable, as though something beneath the car might fail while in motion. I transport my husband and our children in this vehicle, and this issue puts all of us at serious risk. I have scheduled another appointment with a GM dealership to inspect the vehicle. However, given that this is a recurring failure involving a critical system, I am requesting that NHTSA investigate this matter as a potential defect affecting other owners of the same model. Thank you for your attention to this serious concern.

Currently own a 2018 Chevy Suburban with a lifter issue in the engine. This is a known issue with Chevy as many vehicles have experienced this problem from zero to over 100k miles. Chevy has not issued any help or support with customers with this issue. My vehicle is well maintained I get oil changes frequently and have never not done a required service when needed. When I notice an issue I immediately take it to in Regal Chevy for repairs and no matter what the issue is I get it repaired on the spot. I find it odd that this is a recurring issue and Chevy has done nothing to help support loyal customers.

LIFTER ISSUES AFTER 60000 MILES HAD TO REPLACE ALL AROUND 5000 DOLLARS

The Infotainment center display is black and therefore unable to utilize backup camera. The screen is still sensitive to touch but does not display anything for any function. Primarily a safety risk for backing up a large vehicle.

Vehicle first start sometimes when pushing the start stop button. Dash illuminates but then goes black as if no power. P129D code appears after being able to start.

Had to replace transmission at 103000 miles. Regularly maintained no harsh driving. No warning signs it was going out till it happened

My Suburban is having the same issues as the most recent recall on the 2021-2025 Chevrolets. The issue is with pretty much all of the motors that go from the V8 to the 4 cylinders. It's doing the same exact thing a friend of mine's 2019 Tahoe did. It's making a loud knocking/ticking noise. When you first get to going it starts almost sputtering which can cause issues if you're in oncoming traffic trying to cross roads.

Rim corrosion resulting in loss of air pressure. The inner portion of the rim is corroding causing the tires to loose pressure. Depending on the amount of corrosion this could lead to a catastrophic failure at some point due to sudden loss of pressure. I took my vehicle to a tire shop thinking there was a puncture causing it to loose pressure. The manager explained to me that the pressure loss was due to corrosion of the alloy rim and that it is common with Chevrolet vehicles with factory alloy rims. The only solution to the problem is to have the rims possibly refurbished or replaced.

The 2nd row of the vehicle has 2 captain chairs and both seatbelt retractors failed.

I bought this vehicle in January 2019 . I had to have the AC worked on in April 2021. I was advised that the year 2017 had a recall on the same is mine is having… now in 2024 my AC has to be fixed again for the same thing … this is not a cheap fix. It should be under a recall .. please if u can help in any way i would very much appreciate it.. thank u

The contact owns a 2018 Chevrolet Suburban. The contact stated that the instrument cluster failed to function as intended. The instrument panel flickered intermittently and then went black, preventing the contact from safely operating the vehicle. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not notified of the failure. The failure mileage was approximately 132,000.

The Trailor brake system, engine light, stabilitrak control system and antilock brake system is on due to the wiring of this vehicle.

Car abruptly lost power while driving causing rapid deceleration and requiring immediate action to steer vehicle off the active roadway without hitting other vehicles or causing property damage. There were no warning lights or signs until this occured. The vehicle was later towed to chevrolet who informed us that this was a KNOWN ISSUE these cars have where their "lifters fail and sometimes even damage the camshafts" If this was a known issue why would it not have been addressed in a recall. After speaking with the dealer I searched the internet for the same issue and it is widespread across several GM cars including mine. GM now wants $3,100 to repair a dangerous manufacturer defect.

TECHNICIAN - Was unable to perform test drive of vehicle. Inspected operation & found; Vehicle will not turn over, battery very weak. Removed battery, put on charger for approximately 45 minutes. Reinstalled battery. Vehicle had power but did not start. Was unable to get shifter into neutral. Found engine still not turning over. Found starter motor making clicking sounds. Got to turn over once but was very labored, but did not start. Disconnected shift cable at transmission and rolled vehicle into shop for diagnostic. - Scanned computer control modules & found; Approximately 30 codes total in multiple modules, with high and low voltage codes. - Inspected & found; Performed basic electrical faulty tracing. Performed battery test, voltage was low at 16%.Battery(new FY22) failed load test. Found starter making "thunking and clicking" sounds. Unable to move shift lever out of park position. Let battery charge an additional 1 hour and found battery failed testing. Tester states "short" which indicates internal failure. Tested starter draw, found excessive draw at 400amps, spec is 70-120amps. After testing tried to start. Engine turned over slowly for approximately 1 second and then made clicking sounds. Found body module voltage codes returned. Verified engine does turn over when manually turned with breaker bar. FURTHER SHIFT LOCK ISSUES OR OTHER ISSUES. Technician removed and replaced the starter assembly and the battery. Found engine started up and ran. Verified repair. Found shift lock still not working. Shifter will not leave the park position. Performed testing. Verified transmission will shift to drive and to reverse. Verified brake switch working properly and sending signal out to ABS module. Verified shift cable not frozen. Found no fault tracing available for this type of shift lock. Eliminated other possibilities which indicates the issue is with the shift lock actuator/gear shifter. Determined/Suspect; The shift lock actuator/gear shifter is faulty.

While slowing down to make a left hand turn at an intersection, my vehicle suddenly lost power steering and the entire system completely shut down. There was no electronic function during that time. I had to put the vehicle in park, turn the key to the off position and then start it back up. It has happened multiple times, both at low speeds in drive and reverse. This would have caused a collision if there was oncoming traffic at the intersection at that time.

On two occasions, most recently on 6/13/23 the vehicle went from 70 mph to 10 mph very suddenly on an Interstate in heavy traffic--very dangerous. The display indicates an over-heated transmission but the dealer believes its some electrical problem. This 2018 Suburban has an 8 speed auto transmission which has a lot of on line complaints and lawsuit pending.

While driving the vehicle lost all power and after about 20 seconds power came back on. The repair was the battery cables which was apparently very common on the make and model of vehicle. It's unsafe and can cause an accident and apparently happens on the majority of vehicles same year and make.

Vehicle starts dinging with warning - Service Trailer Brake System - and warning - Action Required Steering Assist is Reduced Drive with Care - ABS Light - Traction Control. Power steering goes out and assumedly ABS and Traction Control stop working.

My rear left tire locks when I’m doing sharp turns and I don’t see any traction control lights come on when that happens

The second row - driver's side seat belt no longer was retracting, making the seat unsafe. This belt had been slow to retract since we purchased this vehicle from the dealership in June 2022, but it stopped retracting in mid January 2023. As my extended warranty only covers drive chain, the dealer charged me $627.43 for parts and labor to replace the seat belt. It is disappointing that Chevrolet does not warranty the basic safety equipment for the life of the vehicle.

STARTED ABOUT 3 WEEKS AGO, DRIVER AIRBAG WARNING LIGHT APPEARED ON DASH. RESET IT AND ALERT STAYED OFF FOR A WHILE AND THEN STAYED ON CONSTANTLY. TOOK VEHICLE TO BE REPAIRED, AWAITING PARTS. DEALER STATED IT WAS AIRBAG IN THE OVERHEAD AREA OF THE DRIVER. I DON'T KNOW IF VEHICLE PART HAS BEEN INSPECTED. AWAITING COMPLETION OF THE REPAIR.

The contact owns a 2018 Chevrolet Suburban. The contact stated that while driving and attempting to merge onto the freeway at approximately 50-55 mph, the vehicle suddenly stalled. The contact attempted to accelerate to approximately 70 -75 mph when the vehicle failed to accelerate. The transmission suddenly failed without any warning lights. The vehicle was towed to a certified mechanic who diagnosed that the transmission failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 111,000.

On approximately December 23, 2022, I notice that the UV protection coating on the hood and roof of my SUV is no longer protecting these areas of my vehicle. Which I am now concerned could lead to rusting on my 2018 SUV. I reported this issue after seeing many complaints on the WEB for the same problem by vehicle owners. A Chevrolet dealer mechanic also informed me of customers voicing my concern about the UV-protecting coating issue. I'm worried this issue will continue and affect the painting of my entire vehicle.

Vehicle started shaking while accelerating. Independent mechanic and his recommended transmission shop diagnosed an issue with the transmission - specifically the torque converter. Shop said the car was unsafe to drive while waiting for new transmission as it could lose ability to accelerate while driving. When I asked the transmission shop if they felt the previous owner(s) may have abused the car with their driving to cause the issue at a relatively low mileage, they said this was a systemic issue with this vehicle. In fact one of the repair techs had the exact same issue with his personal vehicle at similar mileage (same make / model).

Car has been at dealer 3 times for Wi-Fi issue. Mechanic took car home for longer drive to check. No found issues. Brought in for small noise that comes and goes. They Came back saying $10000 for cam shaft and lifters they are assuming.

Trailer Brake system Service Message Took it to the dealer service department and was told that a diagnostic would be needed to find problem $225, if the wiring harness is indeed defective it would be over $500 in parts and $600 in labor. A picture of the light coming on while driving was produced to the dealer service department. It first appear when driving on the freeway and we have never towed anything with this vehicle. Upon further online research we found out that this is a common and serious problem with GMC and Chevy vehicles like the Canyon, Sierra, Silverado, Yukon, Tahoe, Suburban, Colorado from years 2015-2020.

9/29/22 (123k miles) TECHNICIAN: - Test drove vehicle, inspected transmission operation & found gear train noise / L3, in approximately 1st through 3rd gears. Tach was jumping up to about 200 rpms when converter locked up and then would go back down. Monitored on scanner and found converter slipping in and out of lock up. - Scanned computer control modules & found no codes. - Inspected transmission fluid level & condition, found transmission fluid was full and red, note; customer noted fluid was changed recently and was dark and burnt with metal shavings in it during the change. (photo of metal shavings). - Inspected exterior of transmission for leaks & damage, found no leaks or damage. - Determined there is a lack of lockup pressure or hydraulic pressure and internal damage to the transmission assembly. - Recommends replacing the transmission assembly with a unit with an improved torque converter. (We replace).

Android Auto stops functioning while driving, only way to deal with getting android auto going is to pick up phone and start navigating thru menus on phone, which is something that I don't want to do in the middle of driving.

The contact owns a 2018 Chevrolet Suburban. The contact stated while attempting to register her vehicle at the state DMV, she was advised that the vehicle did not have airbags. The contact had purchased the vehicle from a third party and not a dealer. The contact stated that the state DMV would not register her vehicle due to the absence of airbags. The vehicle was taken to several independent mechanics who informed her that all air bags were not installed on the vehicle. The vehicle had not been repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 72,000.

My car was acting weird, brake pedal was extremely tough to decompress, speed then was affected, and ultimately the brakes failed.

I have three occasions where I have been turning and my steering wheel locks up and is very hard to turn. I almost crashed twice. I have three young children in the car. I could not get out of the way fast enough but luckily avoided a crash.

We were driving the 2018 Chevrolet Suburban with our three children we tried to accelerate at a green light the car jolted to a halt and someone almost hit us from behind. If this would have happened on the highway we could have caused a major accident and put my kids lives in danger. Was able to get the car to move to the side of the road. We had the car towed to an automotive repair shop and they said there was an issue with the torque convertor and the transmission was totally ruined. There were no check engine lights and no warning what so ever! The repair shop said they haven’t seen this happen on a car with so few miles. Costing us 4.5k and a couple weeks. There are no recalls for this issue on our car.

The contact owns a 2018 Chevrolet Suburban. The contact initially stated that while in reverse(R), the brake pedal became firm as the brake assist message appeared on the instrument panel. The contact stated that she had to stand on the brake pedal to stop the vehicle while in reverse(R). The contact then stated that the failure would occur while driving at various speed. The contact had taken the vehicle to a dealer where the mechanic was eventually able to duplicate the failure. The contact had the vacuum pump replaced; however, the failure recurred. The vehicle was taken back to the dealer where she was then informed that the brake booster needed to be replaced. The manufacturer was notified of the failure and offered to pay a portion towards the cost of the repair. Upon investigation, the contact discovered NHTSA Campaign Number: 19V645000 (Service Brakes, Hydraulic) which she linked to the failure. The vehicle was not repaired. The failure mileage was 80,000.

Hello, To whom it may concern, My vehicle is a 2018 Chevy Suburban with a 5.3 motor. GM produced these motors made from inferior metal and defective lifters. My engine began failing in May 2022, I've taking my vehicle to several shops for work but the problem has not been resolved. I have links below explaining the problems with these motors. There are tens of thousands of individuals with families struggle with this same problem I'm having as well. This is world wide news, I'm asking for help for myself and so many other people in these challenging times. I've contacted GM headquarters. [XXX] and [XXX] with no success, just the run around. I went to a GMC dealer here in Clarksville, TN where I reside this month. [XXX] with GMC told me he was hearing my lifters and I need not drive my vehicle. Called me in his office and told me he couldn't get my vehicle in to be looked at, but gave me another dealership contact information. I called and spoke with a gentleman by the name of [XXX] he also informed me that they were backed up and couldn't see me until October 5th. All warning lights came on in May of 2022, engine and steering and traction. Please view these links below that explain in further detail. Thank you for your time and help! My Contact information [XXX] https://youtu.be/EwOQbnFcAOc https://pickuptrucktalk.com/2021/12/are-there-new-problems-with-gm-v-8-engine-lifters-lurking/ INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

I had noticed an intermittent chirping noise coming from the vehicle, but no warning lights were on and it did not seem significant, I thought maybe it was a squeaky belt that I would have checked at our next routine maintenance. My husband drove the vehicle next for an approximately 12-mile round trip. He noticed the noise get more consistent and louder, and while pulling into our driveway, I observed that the sound was very loud and smoke was coming from the right side wheel well. As soon as he put the vehicle in park, coolant flooded the driveway. We had an independent mechanic come to our home to diagnose the vehicle. He stated that the water pump completely blew and the pulley was loose. The mechanic emphasized that a car this age should not have had a loose water pump/pulley and that this was a manufacturing issue. He was very concerned that if it had blown while driving, it would have shut off the engine entirely and could have caused a catastrophic accident. He recommended a new water pump and thermostat.

When driving with the 4x4 switch in the auto setting the car would jerk while driving at high speeds. Almost seemed like the left front tire would engage on dry pavement. Also there is a loss of steering while the vehicle is in motion. Speed does not change when it happens. Seems to happen more when driving around a corner. Loss of steering happened for a split second or multiple seconds.

Both 2nd row seatbelt tensioners failed within four years of owning the vehicle (bucket seats) with an estimated cost of $500 to fix. We were advise that this is the result of using a recommended child car seat. It is not acceptable or safe to have a seat belt system that cannot be used properly after a car seat has been used and removed.