2018 CHEVROLET MALIBU Complaints

The contact owns a 2018 Chevrolet Malibu. The contact stated that there was a failure near the fuse box. Additionally, there was a grinding sound coming from the vehicle while the brake pedal was depressed. There were no warning lights illuminated. The contact stated that the engine warning light was illuminated prior to the failure. The ECM and PCM were diagnosed, and DTC: P0689 was retrieved. The vehicle was undrivable. An appointment was scheduled; however, the vehicle was not yet diagnosed or repaired due to the cost of the diagnostic test. The vehicle was inspected by an independent mechanic who checked the spark plugs, cylinders, and fuses; however, the vehicle still failed to start. The vehicle was not repaired. The manufacturer was contacted and notified of the failure; however, the contact was placed on hold. The contact disconnected the call because no one returned to the call. The failure mileage was 123,334.

Shift to park error message appears on dash after turning off the vehicle. I have to turn back on the vehicle and take it out of park and shift it back and forth from park to drive then back to park to get the vehicle to turn off. This first January 2020. It was fixed in February 2020. This issue has started again in November 2025. The same error code and same results as the car won't cut off unless you push start it and shift out of park and back a few times.

I was driving on the freeway with my kids in the car at 60 mph and without warning I get an engine power reduced message and then my car losing power and starts dropping speeds down to 35 mph within seconds. I have cars speeding up behind me and I can't go any faster than 35 mph on the freeway so I am forced to quickly pull to the side of the freeway before I get hit. This was one of the post scariest situations for me any my children. I had to turn the car off and sit for awhile before I could start it back up and pray it made it home and didn't do it again. It has randonly done this for no rhyme or reason and no codes are showing when it's happening. I have no recalls on my car so this is something I believe Chevy needs to fix before someone gets seriously hurt.

2018 Chevrolet Malibu Premier with approximately 50,000 miles displayed a persistent “Shift to Park” message. The vehicle would not consistently recognize that it was in park, preventing the vehicle from shutting off properly and creating a safety concern. Dealer diagnosed a faulty transmission shifter assembly that was not sending a strong signal to the body control module (BCM). The shifter assembly was replaced at a cost of $611.31. This appears to be a known recurring defect affecting similar model year Malibus. Filing complaint to document safety-related failure.

I was driving and the reduced engine power came on. I almost crashed because I couldn't control the steering

The Vacuum pump continues to go out causes code P1101. I have replaced it 4 times and people just in my town are fighting this code for dear life like me! It causes our brakes to barely work and make it completely unsafe to drive as the check engine light goes in and out for MAF sensor. It’s not safe. It needs to be recalled. It doesn’t matter if i buy the most cheapest part or expensive part. It has happened on multiple occasions where i replace it and within 2 months, its back on and does reduced power in the middle of me driving on busy roads. i’ve been almost hit and almost caused multiple accidents because I have to pull over.

I've taken my car in now 4 times to Chevy dealers just to be told there was nothing wrong. Turnes out that my torque converter (transmission) is going bad. And I can't get a Chevy dealer to honor my almost expired warranty.

I was driving along and my car went into a reduced engine power mode. Code came up as the gas pedal sensor.

The vehicle shut off in the middle of the street. I had to get it jumped to start again. There was a fuel leak. Car is still smelling like fuel after getting it repaired. The vehicle doesn't alert if your close to a car or anything

The contact owns a 2018 Chevrolet Malibu. The contact stated that while coming to a stop, the brake pedal suddenly became inoperable. There was no warning light illuminated. The contact stated that excessive force was required to depress the brake pedal. The contact stated that the brake pedal went to the floorboard while stopping the vehicle. The contact then stated that after pulling into a parking lot, the contact attempted to restart the vehicle; however, the vehicle failed to start with the check engine warning light illuminated. The vehicle was taken to an independent mechanic, but was not diagnosed or repaired. The dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 111,000.