Engine power reduced. Engine power reduced. At first it seemed to happen when it was raining, but on dry days no problems. The engine light comes on, and disappears a few hours later. The dealership acts as if they can't tell you anything once the warning and engine light turn off. Lately it's been happening more frequently, so I was finally able to get it read. Error codes P2138 and P2127, both referencing throttle/pedal position sensor. Seems to be the only complaint I see on here. I also have read about law suits being filed regarding this as well.

- Chicago, IL, USA

I was leaving work and got 5 minutes into my drive and I had a warning light come on in my Malibu while I was in motion driving straight in town. It indicated "electric steering issues" it was on for no more than 5-10 seconds then it turned off automatically. Allthough this warning went away, I did not feel safe so I pulled over and started doing some research on my Malibu. I did not find anything that made me feel unsafe to finish my drive home, but I do want to raise attention to this so it can be looked into so this doesnt happen to other people.

- Cherryvale, KS, USA

Within 1 year I bought brand new hybrid Malibu car from Chevy dealer, I had experienced dead 12V battery. Dealer replaced the battery which I paid even though I thought it should be within warranty. Last night I experienced 3rd dead battery again after I parked the car for 7 hrs office work. The 2nd time dead battery occured was last June 2019 only, dealer also replaced the battry. Its a 3rd time that I experience dead battery (stationary/parked) for brand new car 2017 hybrid Malibu within 2 years. Obviously its not the battery issue but its design of electrical system. Before and during the battery issue, I got stabilitrak light on and steering assist in reduced alarm as well. I just want to vent my frustation with this brand new car. Hope other car owners will benefit from this info. For 10 years I never had battry issue on my previous car. Thanks

- Lynnwood, WA, USA

I was driving my vehicle in heavy traffic and I came to a traffic light and my vehicle shut down and would not start back. It was frightening because someone could have hit me from behind. After the officer jump my car off it crank back up but I took it to the shop and place on the machine and the battery and alternator is fine. The car since then have shut down 4 more times and after sitting for a while it started back up. Once again this happened in heavy traffic. Please check if others having the same problem. Also a few times the doors came unlock at a stop light or stopping of the vehicle. Please help. 2017 Malibu

- Birmingham, AL, USA

My car will randomly go into engine reduced power mode causing my car to drop from whatever speed I'm at to 30-40mph, almost causing an accident. It's happened on multiple occasions.

- Duluth, MN, USA

The electrical blinks out. Engine reduced speed is a problem and is very damgerous I was almost hit on the freeway. This car is a dud and most models like it have the same problem.

- Fort Worth, TX, USA

During the cold the car will not turn on, will show a stabilitrak problem and the transmission light turns on. When it is on and you drive it, it will automatically turn off and stay off at a red light or whenever you press the brake. I have two other friends who own the same car and it does the same, which makes me assume a manufacturer problem of cars not turning on in the cold/ sensor issue.

- Houston, TX, USA

While driving my 2017 Chevrolet Malibu on the highway with my son in the car, the driver screen dash flashed a message 'engine power reduced', the check engine light turned on, and the car immediately lost power making it difficult to drive safely. After this happened, my car would not exceed 45 mph and would not shift. After pulling my car to the side of the busy highway and letting it set, I was able to get my car towed to my home. This has since happened five additional times and is happening at a more rapid rate. I took my car the oreilleys and autozone to have them run a general diagnostic check and the error code being returned was 'P2138' - 'throttle/pedal position sensor/switch D / E voltage correlation'. I then set up an appointment with the Chevrolet dealership, where technicians also ran a more thorough diagnostic test and found my car needed a new accelerator pedal position sensor. This part is not functioning as it is supposed to and at the very least is an extreme safety hazard.

- Carl Junction, MO, USA

The vehicle displays/flashes quickly, stabili track system error (maybe not the exact words) and after a while the engine speed decreases. This has happened to me 3 times and two happened to be when I was driving on the highway going 70mph and the vehicle speed suddenly decreases to 30mph due with any warning.

- Bedford, TX, USA

Car stalls while operating, car shuts down while driving and fails to reboot without warning. I experience this problem several time within the last month. Car will also shut down when the vehicle is not in motion ie stop signs, traffic lights, stop & go traffic...etc. Most recent issue vehicle prompt "steering assist is reduced drive with care" or servic stablitrak

- Vestavia Hills, AL, USA

Car indicating to place in park after placing the shifter into park and shutting down the car this happens weekly at least I was coming to a stop at a light and the car just completely shut off no power dash flashed a few times I put it in park, then I pushed the button to start it didnt start. Im stuck at stoplight on busy street during morning traffic. Second time this has happened

- Ventura, CA, USA

A 'shift to park' displays when I am already on park when I try to turn off the car. So I am unable to turn off the car properly due to this. I took the car for a diagnostics at my local Chevy dealer and the advisor told me that it's a manufacturer defect with the shift control.

- Fresno, CA, USA

The volt shift to park issue. Does not recognize park (if it is in park??) to turn the vehicle off, which would make it a safety issue.

- Laveen, AZ, USA

My brake boosters went out and I paid $700 now something odd is happening to my brakes with the air or pressure. Should this whole car be recalled" my electrics blinked out the day I got the car and the salesman said ' it happens sometimes now I have to replace a battery for$290 on a car I have less than 2 years?" it was mentioned the auto start affects my battery!! I need to speak to someone about reimbursement and covering my battery. Let's take auto start off totally it's a nuisance not a solution and the tow truck driver said he has taken in 4 GMC/Chevrolet this week and 2 were Malibu's. my car is at the dealers right now!

- Fort Worth, TX, USA

After putting the vehicle in park, and the vehicle is stationary, the P on the shifter lights up that it is in park, the screen reads that is is in park, and the car is parked and not moving. After pressing the engine button to turn the car off, a warning pops up on the screen saying 'shift to park!' even though the car is in park. It takes many tries and a lot of time to finally get the car to turn off.

- Galva, IL, USA

Car shuts off completely while driving-the car goes dead de-energized completely. All controls would not work just locked up on me. I had to have the unit towed twice, we switched the battery in the key fob and the car ended up starting, however 2 weeks later it died again while driving, I nearly had an accident again!! 3 times the car has been in motion going straight and completely shuts down. The dealership was not able to find anything with their diagnostic testing!! this has to be some sort of mal-function or recall regarding this issue.

- Hemet, CA, USA

Warning message says 'shift into park' & even though engine shuts off, the radio (& I'm assuming battery) doesn't. car won't lock because of it. Has required turning car back on & off as many as 8 times, and/or moving forward or backwards numerous times. Chevy dealer's service advisor told me "yeah, we've had lots of problems with that. We usually have to replace the shifter control box".

- New Smyrna Beach, FL, USA

2017 Chevy Malibu has "shift to park" warning light come on when the car is parked even when has been put in park several times. This light only comes on when stationary and trying to park the car. If I leave it like that and take the keys with me, it honks repeatedly.

- Clarendon, TX, USA

The very first advanced diagnostic report by 'onstar" emailed to me on 04/07/2017, was less than 30 days after the final sale of my vehicle. I called the service team for the first time on April 7, 2019 @4:13pm. (see phone records) I am unsure of the mileage however; I do confirm it was within the 30 days of me purchasing the car and I spoke with a service rep by the name of guy. At the time of sale, the car had 15 miles total. The diagnostic message received on April 7, 2017 was "an issue with the emissions/ engine power reduced/engine stalled". the check engine light was also on I have received an email to that effect every month thereafter, and to date. Each time causing the check engine light to come on. I have also attempted to have the car repaired multiple times, within warranty and while out of warranty, by two dealerships. 1. rockmont ourisman Chevrolet &2. sports Chevrolet. Both service teams never resolving the issue. The last few times the car was in for service at the senior advisor's recommendation was on 10/17/2018 for 1 day, 11/09/2018-11/13/2018 for 4 days and finally 12/10/2018-01/17/2019, over 1 month at the sports Chevrolet. During this time, unfortunately, I was not under warranty; therefore, I spent quite a bit of out of pocket expenses on a rental vehicle for the days my car was in for repair, even though this issue was obviously relating the same unresolved complaint from April 7, 2017 and that a Chevrolet senior advisor recommended I go there. I found the senior advisors to be unhelpful and limited in remedying simple common sense customer concerns. I have lots of documentation

- Silver Spring, MD, USA

Intermittent issue while driving at highway speeds (70mph) car will pop up service stabilitrak error message on front display, the traction control light will illuminate, while cel begins flashing. At this time, car will lose power and speed will begin to fall. Continuing to depress accelerator in an attempt to maintain speed will cause car to shudder. Entire incident lasts only 1-2 minutes, before drivability returns. In-the-moment onstar diagnostics show no issues. Purchased car brand new; only been serviced at the original dealership, only use shell V-power gasoline. 1st incident- dealer said wet roads/rain to blame; did not run diagnostics, did not attempt to service 2nd incident- dealer noted cylinder 3 misfire, swapped coil pack and spark plugs on cylinders 1 and 3, changed oil. 3rd incident- on my way home from dealership following above service, dealer noted cylinder 3 misfire, opened a case with GM, and performed decarbon service to engine, said carbon build-up to blame. 4th incident- dealer noted general engine misfire code, along with several communications errors codes; replaced ECM and reprogrammed car. Dealership told me using non-top tier gas is to blame. Car has total of 27K miles on it- issue began to occur around 15K miles. I have dashcam video and all service records.

- Denver, NC, USA