2018 CHEVROLET MALIBU Complaints

I was driving 35 mph when the message "reduced engine power" and it noticably slowed down. The check engine light is still on. I researched recalls/problems with the 2018 Chevy Malibu and this is one major one I found.

8 months ago brakes failed, you could stop but they were hard and stretched stopping distance, vacuum pump failure was the cause, when it failed it broke apart and sent parts into the engine, (valve cover ). Replaced vacuum pump removed valve cover and fished out the broken pieces, was lucky on this occasion, fast forward 8 months later , the mother of my kids was on freeway and car completely died,, got it to dealer and was informed, vacuum pump failed again sending metal fragments into the valve cover but this time pieces destroyed the cam and caused the reluctor to slip thus causing ecm to shut down engine. I’m concerned with there not being some sort of housing inside the valve cover cupping the side of cam that meets vacuum pump to shield engine components from metal pieces incase vac pump broke into pieces since vacuum pump isn’t part of the engine itself and the torque of cam shaft up against the gear on vac pump is very high, the expectation of parts braking off is highly likely, and there nothing protecting your engine from those fragments.. I’m not the smartest but I would not think a $100 external part could destroy and engine and take your braking function without any warning. I guess if I happen once I wouldn’t think to much into it but for the third time and being extreamly lucky on the first two occasions and taking responsibility for repairs are totally uncalled for , so now I have to replace and engine, WOW... I hope this can be addressed before someone actually gets hurt, I’m so lucky that my kids mother was able to coast off the highway b/c it could have been bad..

When I come to a complete stop and take back off, my car flashes a warning " steering assist reduced. Drive with care" this just started 4 days ago. Within those 4 days, every time it starts back up all lights flash on then back off. My check engine light has not gone back off since 1 day ago. I have done research and I have realized that this is a common problem for this make and model car. Most complaints regard power steering control. I'm wondering what can be done, because there has not yet been a recall for this issue and it is a complete safety hazard, especially with children in the car. I would hate for any lawsuits to come from something that could have been avoided.

I was leaving the gas station and when I got ready to pull off into traffic the car stalled. Flashed a message saying the automatic steering was disabled or something drive with care. I go out this morning and it won't start at all. It cranks but won't turn.

The contact owns a 2018 Chevrolet Malibu. The contact stated that while driving at 70 MPH, the brake pedal depressed and it traveled to the floorboard as the vehicle failed to stop without warning. After the failure occurred, the contact stated that the vehicle failed to restart upon parking the vehicle. Due to the failure, the vehicle was towed to a dealer where they discovered that both the vacuum pump and camshaft sensor were defective and needed to be replaced. The manufacturer was notified about the failure and referred the contact to the NHTSA Hotline. The vehicle had yet to be repaired. The failure mileage was 79,000.

The contact owns a 2018 Chevrolet Malibu. The contact stated the vehicle's reduce engine warning light would illuminate at various speeds. The contact would pull over unlock then lock the vehicle in order for the vehicle's warning light to no longer illuminate and to regain proper function. While driving 75 mph when the engine warning light stating reduced speed illuminated. The mph dropped to about 25 mph. The vehicle's OnStar displayed a message stating that the antilock brake system was detected and the vehicle powered off shortly after. The vehicle was towed to a certified mechanic who diagnosed that the crankshaft needed to be replaced. The vehicle had not been repaired. The manufacturer was made aware of the failure and informed the contact that their vehicle was not included in any recall. The failure mileage was unknown.

When going to shut off the vehicle the display comes on "shift to park" and will not allow the engine to shut down. Must turn car back on, place into a gear, place into park and turn off power again. This has occurred multiple times over the past few days. It will also take 3 or 4 cycles to finally get the car to shut down completely.

Something draining my battery done put a new battery in it no lights or anything on when I get out been going on for bout 3 months now

When I get to a destination and put car in park it says " shift to park" like it's not in park. I have to wiggle my gear shift around for it to go away. Or when I park, I have to give it a forceful push to park.

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.