2018 Chevrolet Malibu Complaint Log

P2138 throwing off code and goes into engine reduce power mode it’s dangerous

Most the time I park now, the vehicle does NOT recognize when I shift the vehicle into PARK. The transmission control (the "stick") is positioned correctly, but the vehicle chimes and warns vehicle cannot be turned off until vehicle is in PARK regardless. I am not sure if the vehicle is literally not in PARK, or if the vehicle's system sensors simply are NOT functioning correctly. Usually some jiggling of the stick causes the car to eventually recognize the PARK is engaged, but it is never certain. So far this issue has mostly resulted in inconvenience and annoyance, so no police reports or mechanic investigations yet. But whatever the nature of this malfunctioning PARK, under the right circumstances, this issue could conceivably lead to accidents and deaths if not addressed and repaired soon. I am reminded of Anton Yelchin's SUV crushing him to death after he thought his vehicle was in PARK but the system wasn't working correctly. My vehicle is 4 years old now and this problem only began manifesting recently, perhaps 3-6 months ago. I have searched online and I have found at least two other owners of this same make and model and year have experienced the exact same problem. I suspect this issue could lead to catastrophic problems in the future if not fixed early. Please investigate before things get out of hand.

Reduced power mode warning came on and 3 seconds later I went from 70mph to 10mph on a freeway and could only do about 10 from that point on, the accident that was avoided would have been deadly if I wasn’t in the right lane to immediately pull over Took it to the mechanic and he said that there’s a recall that the dealership REFUSES TO ACKNOWLEDGE even tho we got a reading of #n1-82188250-01 told the manufacturer and there fixing it Monday My question is why has this not been recalled?? I do not feel safe, I do not want this car I WANT THIS PROBLEM ACKNOWLEDGED by ppl who care and can do something, what is Chevy waiting for someone to die before this is addressed??? This is so criminal put a RECALL OUT

Vehicle jerks when accelerating. Loses power. Usually will stop after turning the car off for a few minutes. Different engine codes have came up (camshaft position timer, air intake system) no one can seem to find the problem

A few days after I got my in October 2018 my car did not start! I pressed the push start and it turned on but wouldn’t “start.” It went back to normal shortly after that but then randomly “steering issues” started happening. THEN my car would LITERALLY STOP at lights and take a minute to turn back on. Or I would be trying to get speed and my CAR WOULD NOT GO. Do you know how unsafe that made me feel especially having a 5 year old and 2 year (when it happen in the last they where obviously 3 and a new born) but it was scary. The check engine light comes on and off. And TODAY MY CAR did what it do a here and there it shut off… and then on a BUSY road WOULD NOT GO. I had to sit and wait until my family could help push my 2 year old car off the busy road with my 2 babies in the car. It was horrible. Im paying so much for a car I CONSISTENTLY have issues with. Im scared to drive my own car. Now im being told my car needs a new battery, a weird part is needing to be replaced. I have had the same issues taken it to the shop and told everything is good. Oil changes kept up etc. everyone I know that has a Malibu has issues with their Malibu’s

After parking car and turning off engine an error “Shift to park” displays. Only way to resolve is to turn car back on, put in different gear and then back into park, or keep pushing shifter up while in park to force into place and get car to recognize it’s already in park.

The contact owns a 2018 Chevrolet Malibu. The contact stated that the check engine warning light was illuminated and flashing. While in the park position, the shift to park message was displayed. The vehicle was slow to move. While adding fuel to the tank, the fuel would bubble at the top and stop. While driving approximately 35 mph, a 2018 GMC Terrain crashed into the front end of the vehicle. The driver sustained injuries to her hip, soft tissue, lower back, whiplash, and neck and medical attention was provided. There was a police report filed. There was no reported fire or air bag deployment. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The approximate failure mileage was 20,000.

While driving engine warning function low power. Would not accelerate above 20mph. Defective accelerator pedal assembly and sensor.

12/27/2021 I started my car to leave work & noticed a loud tap. I've worked for dealerships in the past & was part owner of my own repair shop for many years. Popped the hood, checked the oil level which was good, & figured I'd be fine to drive it home to park it & then hook the scanner up. Mid-way home I received an engine performance notification on my dash, but other than that it seemed safe with no diminished speed. Less than 3 miles from home I went to stop at a red light & had the hardest brake pedal I've ever felt in my life. I was fortunate nobody was around me so I put all the weight of my body on the pedal to stop the car at the light. The engine was sputtering & the steering felt tight & it felt like it was stalling, with a green turn arrow I risked crossing the highway & was able to safely park in the community's rec center. I'm not one who is quick to take anything to the dealership because many times the techs are lazy, so I hit the web & found two things. One - there is an extended warranty on the TPS sensor which is the entire gas pedal itself. This could explain the engine performance notification, but not the lack of brakes. Upon hours & hours of additional reading I found the problem - the vacuum brake pump. We ordered it & replaced it but I can tell you my engine likely needs an additional camshaft replacement for it to ever be right again. Two codes remain: P0014 & P0017 - Exhaust camshaft/crankshaft position not plausible. What was the condition of the vacuum pump? It was SHATTERED & had spewed chunks of metal directly into my engine. I was lucky that day, had I gotten 1/4 mile down the road I could have wound up in a lake instead of a parking lot. GM should be ASHAMED of this design & it's continued failure to not only address the issue, but lie about it in the process. First owner, failure occurred at 54,500 miles - no warranty. What scares me the most, is how many times the same owner has had this pump fail again & again.

My vehicle had the reduced power dash warning and check engine light on while I was driving down the interstate at 65 I lost my power speed reduced to 45 and my stability light came on as well it could have caused a serious accident had it been day time with traffic flying at 70 to 75 mph rear ending me I was able to get off the freeway safely last night when the incident occurred and safely make it to a parking lot there doesn’t seem to be a current recall on my car with my vin number at this time but it is a year and model that has known issues also the other issue is vehicle not registering into park even when I put shifter in park possibility is a loose shifter cable

Driver seat not moving. This rode came out of the bottom of seat that causes the seat to move front to back. The the left side the seat moves

Fuel injectors went out on my car I had no power to drive

Reduced power mode came on and the fuel injectors arnt going to the emc

For over two years now I have been getting a reduced engine power when I drive. The car becomes slow and it is very dangerous especially on the highway. I have almost crashed a couple of times due to this issue. Once I turn the car off and on it goes off but off late that no longer works for me. This has been constant and has made my car useless. I can’t even go anywhere with it. A recall needs to me done because this is heartless and painful. Spending much on a car that I can’t even drive anymore.

Vehicle slows way down and loss of power. Engine power reduced. On heads up display. Seems to use alot of gas when this happens. I need to pull over and shut off car. Wait a bit and then restart. And get back on road. It did this 3 times in my commute to work. Also was snowing that morning and was slippery out so very dangerous almost was involved in an accident but luckily not. Seems to do this more in the colder Temps. It has happened however in summer also but not as often. I have read many complaints about this issue. I am not sure why GM has not figured this issue out yet. Very concerned.

Driving on I20 in heavy traffic all doing 75MPH the car lost all power.Although I had plenty of gas it did no good pumping the gas pedal .Fortunatly I was in the left lane and coasted to the shoulder before anyone collided with me. If I was in the right lane I am sure a collision would have occured as traffic would not have allowed me to get to the shoulder.After several hours I got towed 70 miles to the dealership.There was absolutely no warning of a problem prior to the incident. According to the dealership the fuel pump sensor shorted out and no gas could get to the engine.The car is still at the dealers as they have not gotten the backlogged part to repair the vehicle

Driving at a speed 55-65 engine power being reduced light comes on and vehicle slows to about 40 speed while engine light is on. It goes in and out like this for days then it does it again. Vehicle was repaired at Chevy dealer 3/18/21. Now it’s doing it again.

Check in light is on. They told me it was something with the idle sensor the fixed it. Not even 24 hours later it’s back on they tell me it the vacuum pump & it cost 800 buck. I do some research and noticed on not the only driver with this problem They tell me I can still drive it but nobody told me pieces of the pump could damage the engine also so what do I do now

Vehicle is experiencing a electrical issue. When auto stop stops the car, it displays the message "drive assistance reduced, drive with care". The Vehicle does not jave any light displaying a issue but the car is loosing power once it starts after auto stop.

The second morning in a row my 2018 Chevy Malibu overheated. Early in the morning, the temperature out was about 45-50 degrees, I was driving on the highway about 65-70 mph, I turned on the heater and my cars temperature gage immediately shoots up and the "overheating engine" warning lights start flashing. Confused I pulled over popped the hood there were no signs of smoke or over heating sounds coming from the motor. I got back into the car, turned off the engine, turned it back on, and the temperature gage immediately falls to normal temperature. Happened two mornings in a row now.

When trying to turn off the car after putting it in park, the panel reads that I need to "Shift To Park", although the car is already in park. With this issue it causes the car not to turn off. This is an intermittent issue, and does not happen all the time.

The check engine light came on and after getting it diagnose I recieved a P1101 code indicating air mass flow problem. After replacing the sensor I later received an engine power reduce on the dashboard. I received that warning while driving on the interstate and my vehicle started reducing speed possibly causing an accident.

Car displayed steering assistance reduced about 2 or 3 times whole driving and I wasn't sure what that meant because it popped up and disappeared so quickly. So a few days later it never appeared again. On this morning as I'm driving and come to a red light to make a left hand turn while waiting and taking my feet off the brake to go cause my light is now green my car turns completely off and I'm stuck at a intersection about 2 to 3 mins later it tells me to start it back up.

This has been going on since i got the vehicle, At any moment you could be driving 70MPS and all of a sudden your vehicle drops to 35, and man is it scary especially on the expressway. you are NOT able to accelerate. You have to pull over where you are, shut the vehicle off and restart it to rest it till it does it again, and it does it ALOT. I love this vehicle but this is NOT safe, and i'm tired of paying for this and should NOT have to when its in writing from GM. This will be my 3rd time taking my vehicle in for this same issue. i've read up on this and did my research this has been going on since 2016-2018 Malibu vehicles. I've reached out to GM asked about recalls, they said there is none. I asked how do i file a complaint so this doesn't happen to others. they told me i have to make a complaint with the dealership(that right there told me that calling GM customer support directly they are not willing to help with this safety issue. that is so sad too. what is happening to this world, the kindness and compassion for your customers and quality of items you purchase. I will probably be doing a law suet as well as this complaint. I pray you all are able to do something to help me and others having this issue.

When I push the button car won’t start

The contact owns a 2018 Chevrolet Malibu. The contact stated while driving 20 MPH and coming to a complete stop, the brake pedal was depressed and the vehicle Stop feature engaged independently as designed, causing the engine to stop running. However, upon releasing the brake pedal, the vehicle stalled and shut off. The contact was unable to veer to the side of the road. The contact shifted into the park, depressed the pedal, and was able to restart the vehicle. The contact stated that the failure reoccurred twice. The vehicle was taken to the local dealer where it was diagnosed that no issues were found. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the dealer. A case was opened. The failure mileage was approximately 58,000.

MY VEHICLE ACTS AS IF IT DOESNT WANT TO START AFTER BEING AT A RED LIGHT OR STOP SIGN WHEN MY FEET IS RELEASED OFF THE BREAK IT TAKES A FEW SECONDS TO START BACK UP. ALSO I HAVE ISSUES WITH CHECK ENGINE LIGHT COMING ON TOOK IT TO AUTO ZONE AND THEY RECEIVED A CODE DEALING WITH THE WIRING ON THE BATTERY NOT THE ACTUAL BATTERY NEEDING TO BE REPLACED

The contact owns a 2018 Chevrolet Malibu. The contact stated that while parking the vehicle, the "Shift to Park" message was displayed, and the vehicle would not turn off. The contact had to disconnect the battery to turn off the vehicle. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 30,000.

The contact owns a 2018 Chevrolet Malibu. The contact stated while driving 45 MPH, the steering wheel would jerk to the left. Additionally, the vehicle inadvertently rolled backward while at a full stop. The steering assist warning message was displayed. The vehicle was not diagnosed or repaired. The dealer was made aware of the failure and referred the contact to file a complaint with NHTSA. The manufacturer was not made aware of the failure. The failure mileage was approximately 85,379.

I am driving and all of a sudden car "reduces power" and won't let me go over 20 mph. Sometimes it dies completely even on the highway. Out if no where, it shows "Reduced Engine Power" on the dash and won't go over 20 mph. This has almost caused a few accidents with my baby in the backseat, too. This has happened several times

I do not know what component or system that failed or malfunctioned because I am not well versed on the different parts of an automobile. The problems started this past week around October 26, 2021. When the car is stopped at a red light or stop sign and I am ready to go and in the process of taking my foot off the brake pedal to move to the accelerator the car momentarily cuts off completely (no lights, inside or out, no radio). In the instant that it cuts off and I move my foot to the accelerator everything comes back on and at that point I can continue driving. I have noticed when this happens all programmed radio stations are deleted but the programmed stations return once the car has been turned off for a while and started again. I also noticed a message regarding steering assist, but I cannot get the entire message because it is only there for a second or so. In other instances which began around October 28, when trying to start the vehicle the message reads battery low start vehicle. I then try to start the vehicle a number of times before it actually starts. When it does start the message reads battery saver active. There have also been a message service stabilitrak. The engine light does come on from time to time and then goes off. I brought the vehicle in to a Chevy Dealership (Banner Chevrolet in New Orleans) and was told that a service technician would not be able to look at it and diagnose the problem for at least 3 weeks because of the backlog regarding COVID-19. I decided not to leave the vehicle at that time and will check with other dealerships.

Reduced power steering warning pops up for approximately 3-5 seconds then disappears. No noticeable operating issues while driving.

“Engine power reduced” shows on dash after I’ve taken it to the dealership. I’ve been on the highway where the speed slow down drastically cars coming behind me! Very dangerous! Also “shift to park” displays when it is already in park! Have to either wiggle the gear shift or, turn car off/on several times for the message to go away. Also when backing up, there’s a popping noise in the rear. Dealership acknowledged I want the only customer with this issue. Claimed they didn’t find anything wrong. I purchased this vehicle in 2019 and it was only a year old. Issues started almost simultaneously at the end of 2019…Too new for all of these issues.

Car suddenly stops and takes several minutes to turn back on. During the time the car is off there is no electrical power. After a few minutes (5-10) electrical power returns and car is able to be started. This has happened everywhere from our driveway to a highway ramp and happens without warning.

I was at a red light and out of no where the Air bags on the driver side deployed, there was a passenger thanks god they did not go out.

While driving, on October 16, 2021 my car shut off and stopped working unexpectedly, while I was still in traffic. It would not start up again, and the steering wheels locked. Luckily, some pedestrians helped push the car to a safer spot. However, the car would not start even after attempting to jump it. I had the car towed to a repair shop on October 18, 2021. The repair shop claimed to not know why it suddenly stopped while driving, however, they were able to get it started again.

The contact's daughter owns a 2018 Chevrolet Malibu. The contact stated that while refueling the vehicle, the contact was not able to fill the fuel tank to full capacity. The vehicle was taken to an independent mechanic, who diagnosed that the air control valve sensor was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was unavailable.

The engine shut down while driving and about caused me to wreck. Luckliy traffic was light. Jack Schmitt Chevrolet said it was a factory defect in the turbo function of the car and Chevrolet would not pay for the repaires. $2290 I was charged. They also said it was not the software issue of the outstanding recall for this same car that was causing this same exact problem.

I have owned this vehicle for 3 months now, since week two "ENGINE POWER REDUCED" HAS BEEN A BIG PROBLEM FOR ME I TOOK IT IN TO MISSION BAY CHEVY IN SAN DIEGO THE PROBLEM WENT FROM EVERY ONCE IN AWHILE TO NON STOP. I WAS UABLE TO GET AN ANSWER FROM THEM IN WEEKS. FINALLY I WENT BACK TO THE INDEPENDENT DEALERSHIP I PURCHASED THE VEHICLE FROM 4X TO FIX THIS PROBLEM. AND IT KEEPS COMMING BACK AFTER DAYS. IM PAYING $500 MONTHLY FOR THIS CAR AND IM RUNNIN GOUT OF OPTIONS THIS IS CAUSING MY VEHICLE TO REDUCE POWER ON THE FREE WAY AT SPEED OF 23MPH TO 35MPH. THERE WAS ALREADY A CLASSACTION LAW SUITE FOR THIS PROBLEM. AND I CAN NOT AFFORD TO KEEP GETTING IT FIXED ITS CLEARLY A DEFECT THAT KEEPS COMING BACK, I HAVE READ SEVERAL CONSUMER REPORTS WITH THE SAME ISSUE. I NEED A FUNCTIONING CAR AND I DONT KNOW WHERE ELSE TO TURN

The car is in park but the car won't turn off, it's saying shift to park

Intermittent problem with the shift to park alert coming on after putting into park. Power remains on, movement of shifter back and forth usually causes it to go off. Message sent to manufacturer was cut off in process by customer service? I will try using usps. Very annoying and unsettling problem,many similar complaints online. Dealership says replacement of shifter for about 400.00 should correct it?A recall should be made with this many issues.

My ‘18 Malibu LT has over 39K miles , and just tonight, i started my car , the engine light and traction control light both came on, followed by a message saying “Engine Power Reduced”. I then decided to drive for a little to see if i notice any problem. After driving for about 4 minutes , my car went from 37mph down to 20mph . It felt like the engine was forcing itself . So i then pulled over to the side of the curb, turn the car off, then back on. i noticed the warning engine light was still there but the traction light weren’t there no more. So i drove back to my place , turned my engine off. Then i plugged my diagnostic device to see what code(s)were they, and 1 code came up and it was P2138. Which is Throttle/Pedal Position Sensor. Oh by the way, I also would like to mention one more thing which is the “Shift to Park” message i started seeing whenever i park my car (putting the gear in park) and this first happened when my car was at 38K Miles (about a month ago).

The harness and shifter solenoid went bad in my car. When I was on the highway, it stalled causing me to have to pull over onside the road. I nearly got hit in the rear by an 18-wheeler. There was an TSB on the make, model, and year of the car, but GM did not inform their customers of the issue and the dangerous situation one could be in if the car decided to malfunction in the middle of traffic. I was almost rear-ended from behind by an 18-wheeler while on the highway going 60 miles per hour. I also was stranded on the side of the road because they said they could not send anyone out. Malcolm Cunningham Chevrolet, a local Chevy dealer is aware of the issues with the vehicles, but when I bought my vehicle into the shop to get fixed, they lied and said I had wasted something in my car. They provided no pictures of the spills or pictures of the parts with the contamination that they claimed it had on it. The only person that inspected my car was Logan and the other technicians at Malcolm Cunningham Chevrolet in Augusta, Georgia. No, there was no warning lights indicating my harness and solenoid needed to be checked.

The contact's grandson owns a 2018 Chevrolet Malibu. The contact stated that while his grandson was driving 65 MPH, the reduced engine power warning light illuminated, and the vehicle started to stall. His grandson was able to restart the vehicle and drove the vehicle off the highway. The contact then met his grandson in a parking lot where the vehicle would not restart, and the check engine and reduced engine power warning lights were illuminated. Due to the failure, the contact had the vehicle towed to a dealer and he was informed that the failure was related to a defective camshaft. The contact did not believe the stated cause for the failure. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was 61,030.

Keep getting a warning on my dashboard saying that the engines power is reduced.

2018 CHEVROLET MALIBU. CONSUMER WRITES IN REGARDS TO ISSUES WITH THE ENGINE. THE CONSUMER STATED THE ACCESSORIES STAY ON WHEN TURNING THE ENGINE OFF. THE DASHBOARD READS SHIFT TO PARK EVEN THOUGH THE GEAR IS IN PARK. THE ACCESSORIES THEN TURN OFF AFTER ABOUT 2 MINUTES. THE CONSUMER REQUESTED TO HAVE THE VEHICLE REPAIRED UNDER WARRANTY.

My shift to park came on my 2018 Malibu and was repaired by sands Chevrolet of surprise less then a year later it came on again. I called about them fixing it and was told that because my warranty expired I would be responsible for the cost of the repair. Because GM Doesn’t cover it , I told them it was less then a year that it was repaired and they should repair it because if it was fixed right it shouldn’t happen again less then a year after it was fixed,

Shift to park appears. Helpless in car cant shut off. Car has only 33,000 miles on it. I have read many with same problems across a variety of GM products. I consider it a danger and safety problem.

The contact owns a 2018 Chevrolet Malibu. The contact stated that the vehicle was taken to an independent mechanic for the tire rotation however, the mechanic informed the contact that the front driver’s side subframe was cracked. The contact took the vehicle to the local dealer to be inspected and was informed that there was a cost to perform the inspection. The inspection was not performed, and the vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 48,000. The VIN was invalid.

Recently my car had been shutting off at stops. I know chevys shut down when at stops but now it shuts down my radio lights go off locks on doors unlock then lock. then when it turns back on it says driving assist is reduced drive with caution. Then another alert pops up saying doors are unlocked. Now when I’m driving sometimes it slows down on its own and won’t let me go faster. It’s very scary when on freeway cause I’m worried it’s not going to speed back up and I’m going to get rear ended. Another alert With the first letter S comes on but it turns off so fast I can’t see what the word is. It been stalling when I’m at a stop. It does turn back on after a few seconds. The engine light comes on periodically and eventually turns off. Also when I go from drive to reverse it does not change gear smoothly sometimes it will jerk the entire car and make a loud noise as I’m putting into reverse. There has been two times my radio screen has gone completely black and won’t turn on for several hours. I use my car everyday to commute to and from work. I have two jobs so I do spend a lot of time driving and this is scary not knowing if my car is truly safe to be on the road. I trust the Chevy name that’s why I chose it but now I’m not so sure it is safe.