When parking car we place the shifter in park, and psh the button to turn off car it states to -??Put shifter in Park-?? after wiggling the shifter that is clearly in park the car will shut off. Also the breaks will pulsate at slower speeds like the ABS is kicking in, but is not the case. Along with the pulsating there are loud thumping noises. Car today when driving did same thing the said -??reducing engine power-?? almost made it home then completely died on me in middle of road. Was told it could be because of bad vacuum pump, brake booster sensor, and brake booster by my mechanic. He said in newer cars this would prevent the car from starting.

- St. Clair, MO, USA

When the vehicle is in park and you try to turn it off with the start/stop button an on dash error code of -??Shift to Park-?? appears even though the vehicle is clearly in park. You are not able to turn the vehicle off. I am very concerned this could cause major safety issues! When I searched for it, it appears a lot of GM owners are having the same issue. Please issue a recall!

- Muse, OK, USA

Driving vehicle like normal and then the check engine light comes on with the stabilitrak light, and get message "reduced engine power". Car goes down to less than 50 miles per hour and is struggling to go must faster while I am on the freeway. The RPMs keep going higher and higher even though the car is not going very fast. Get home and let it rest. Keep having same issue on and off past two weeks. Sometimes it comes on and goes off, has been on past three days acting the same way. Check engine light says Pedal Sensor issue. Known recall for it listed with letter sent out in 2019, but of course this was only if you were having the issue at the time (which I didn't) and it is only covering for cars under 150K miles. My car has 192K miles, so they will no longer cover it, even though it is a known issue has been for some time now! It is very expensive and unfortunate that they will not cover this issue regardless of miles, knowing that this can happen to the 2017 Chevy Malibu's at any time. Still driving it the way it is. Did try to clean out the Throttle body and see if that helped, but issue still is there. Will try to replace sensor at some point and see what happens.

- Houston, TX, USA

Engine light came on along with decreased engine power light. Felt the transmission downshifting. Speed went from 50 down to 20 while on an expressway and I had to pull off the road and shut it down. Waited awhile, turned it back on and it continued several times to downshift. Took it to the dealer, had to wait a few weeks for the part and the accelerator pedal sensor needed to be replaced. Thank god I was not in the passing lane or there would 've been a very bad accident.

- Scranton, PA, USA

Contined chevk engine light concerns despite paying for repairs multiple times at chevy dealership. Always issues with throttle body and PCM. Additionally receiving codes for reduced engine power/speed reduction while driving and frequent messages of "shift to park, " when already parked.

- Alexandria , LA, USA

Shifting into park, transmission control assembly. Cannot put the car into park, have to fiddle with the shifter to get the car to turn off, drains my battery. Have to make certain car is off and in park before putting gas into the car. First incident was in April, and now ongoing every time I try to turn the car off. Error Message: Shift to Park

- Brick, NJ, USA

The contact owns a 2017 Chevrolet Malibu. The contact stated that while coming to a stop, the vehicle lost motive power and electrical power. The contact stated she was able to jump start the vehicle and the vehicle operated normally. The battery was replaced and the stability trac warning light was illuminated. The vehicle was not diagnosed. The manufacturer was contacted and stated that the vehicle was not under recall. The contact was referred to the NHTSA Hotline. The failure mileage was 22,000.

- Lake Worth, FL, USA

Shifting delays that cause loss of power for the past 2 years. I would have reported sooner but did not know how until now.

- South El Monte, CA, USA

First incident, vehicle in motion moving about 45 MPH approached red light vehicle started making loud tick noise when to start to slow down and break pedal was solid not able to slow the vehicle down. Panicked, 3 children in my car in fear for their safety. Was able to put both feet and press as hard as I could to attempt to stop the car. Car thankfully came to a stop and was able to pull over exit the car and have towed to dealership. Dealership inspected vehicle and decided that the vacuum pump had locked up and the case and gear had broken apart. Replaced part and everything was working. Second incident, noticed fluid on driveway, took car to dealership and they stated the vacuum pump was leaking, changed gasket. Third incident, driving car down the highway, vehicle lost speed (jumped) and check engine light came on. Exited highway and car shut off and breaks were again solid had to again use two feet to press as hard as I could in order to not blow through an intersection. Was able to get off road call tow truck and tow to closest shop. They inspected vehicle and found the vacuum pump locked up again and broken pieces where sent into the engine and destroyed the cam shaft.

- Clayton, NC, USA

The contact owns a 2017 Chevrolet Malibu. The contact stated that the automatic START/STOP feature intermittently failed to operate as needed and the vehicle would shut off while at a complete stop. There were several unknown warning lights illuminated. During the most recent failure, the vehicle failed to restart after several attempts. A fellow motorist assisted her in jump-starting the vehicle and the contact was able to resume normal driving. The contact then took the vehicle to a dealer where it remained in their possession while awaiting a diagnostic test. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 67,000.

- Miami, FL, USA

The contact owns a 2017 Chevrolet Malibu. The contact stated upon coming to a complete stop, the vehicle shut off and the warning messages "Power Engine Low", "Steering Reduced; Be Careful" were displayed. The contact stated upon restarting the vehicle, the warning messages were no longer illuminated and she was able to continue driving. The contact stated that the failure reoccurred several times. Additionally, the contact stated while driving 45-55 MPH, the vehicle decelerated independently to 25-30 MPH. The contact stated that the failure had been reoccurring intermittently. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that the convertor actuator voltage performance for the power train system had failed. The vehicle was not repaired. The local dealer was notified of the failure and an appointment was scheduled for the repair. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 97,000.

- Lillington, NC, USA

Frequently the car will say that the transmission is not in park, but the shifter is in the park position, and the car will not turn off until I take it from park to reverse to park again. Sometimes it takes several tries before the car will register that it is in park.

- Gainesville, GA, USA

When vehicle is engaged in auto stop, it stalls out completely or bucks forward when at a complete stop(sign or red light). Upon review, two mechanics stated it has to do with the transmission and tork converter. Repair is upwards of $4000-$6000. 2017 Malibu has less than 75000 miles. Will be contacting dealership today 4/10/22.

- Howell, NJ, USA

While I was driving my car went into engine saving mood. My speed was reduces rapidly.

- Chesterfield, MI, USA

The contact owns a 2017 Chevrolet Malibu. The contact stated that while driving at 60 MPH, the accelerator pedal sensor failed with the check engine vehicle entered reduced power mode, the vehicle independently slowed down as the contact pulled to the side of the road. The contact was able to restart the vehicle and took the vehicle to a dealer. The dealer informed him warning light and several other unknown warning lights illuminated. As the that the accelerator pedal sensor was defective and needed to be replaced. The contact was also informed that the parts to repair the vehicle were unavailable. The contact then had an independent mechanic replace the accelerator pedal and the sensor. The contact also stated that while merging onto a highway at 60 MPH, the vehicle stalled with several unknown warning lights illuminated. The vehicle entered reduced power mode as the contact pulled off to the side of the highway. The contact was able to exit the highway and drove the vehicle slowly back to his residence. The following day, the vehicle was towed back to the dealer where he was informed that the high-pressure fuel pump failed and that the vehicle was not included in NHTSA Campaign Number: 18V358000 (Fuel System, Gasoline). The manufacturer was not notified of failure. The vehicle was repaired but remained at the dealer. The failure mileage was approximately 32,000.

- Coon Rapids, MN, USA

The shifter will get not recognize it's in park. I will typically have to move around the shifter or force it from low to park multiple times for it to recognize. This has happened multiples times over the past year. I have also read online multiple other chevy malibu owners have also experienced this.

- Bentonville, AR, USA

The contact owns a 2017 Chevrolet Malibu. The contact stated while driving 70 MPH, the vehicle speed reduced message was displayed on the instrument panel, and the vehicle decelerated from 70 to 30 MPH. The contact pulled over and waited for 5 minutes before restarting the vehicle. The message disappeared and the vehicle was driven back to the residence. The contact stated that the failure was intermittent. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was unknown.

- Del Valle, TX, USA

The contact owns a 2017 Chevrolet Malibu. The contact stated that after pulling the vehicle into the driveway and attempting to shift the vehicle into Park; however, the engine revved up as if trying to accelerate forward. There was an error message on the instrument to shift the vehicle to Park however, the vehicle failed to remain in Park. After several attempts, the vehicle was shifted into Park and remained in Park. The vehicle was taken to a local dealer to be diagnosed. The contact was informed that the gear shifter wiring harness and switch were damaged and needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 7,210.

- Wyoming, MI, USA

I purchased my vehicle in August of 2020, in October while driving down a main highway the engine light came on with a warning that stated "driving with reduced power". The vehicle slows to 20 mph and will not accelerate any faster. I called my dealers service center and was told this issue was a "quirk that happens" and to "turn my vehicle off and start it again" and that by doing this it would make it go away and it would not happen again. Approximately 8 months later this happened again, so I called the service department and was told that a line was freezing and that I could bring my vehicle in so they could empty & refill the frozen line costing $500, but it would not solve the problem, the dealer then recommended that I park in a heated space to avoid it freezing, but again it would not resolve the problem long term. A month later while driving home from work in a blizzard, my vehicle once again lost power, with the engine light on and a warning that I was driving with reduced power and slowing to 20mph. This put myself and other travelers on this busy main road at risk. When I reached out to my dealer they said that there was nothing they could do that would guarantee a fix, but they could try three different options, again with no guarantee of a fix. None of this is covered under warranty and costs roughly $1500.

- Brainerd, MN, USA

I have a 2017 Chevy Malibu, I have 10 months with me since I bought last year, it and it was 25000 mille now is 30000 m my real problem is on several times driving in freeway or hiway my car drop the speed from 55 to 40 to 20 and appear a light says POWER ENGINE REDUCED, after that my car LOOSE POWER - CHECK ENGINE IS ON I got nervous for what happens and is really confused I just buy my first car from dealer and now this !!!! This is not fear help please I read a lot of comments regarding with this problem in this cars models and everyone from 2016 to 2018 has the same problem POWER ENGINE REDUCED. and dealers just charge and charge and don-??t resolve the problem thank you blessings all

- Manassas, VA, USA