I was driving straight at 47mph on a major street in denver and the check engine light came on. At the same time, the display read "engine power is reduced" and I lost all acceleration. My speed dropped to about 20mph very quickly (5 to 8 seconds). Luckily there was relatively light traffic. I pulled into an autozone that was at the next intersection and they read the error code P2138. Come to find out this shows an error with the throttle/pedal position censor. I got back in my car to drive home and within 30 seconds, the check engine light went off and my car ran like normal. I'm still very worried about this sensor however. When I looked this up online tonight, I came to find out this is a common problem yet Chevy has decided not to recall this part. Doing more research lead me to the class action lawsuit which has been by rothschild V. General Motors llc, case no. 1:19-cv-05240, in the U.S. district court for the eastern district of New York. From what I read, and knowing that I drive 35,000 miles per year for work, I believe this could be a huge if this were to happen when I'm doing 75+mph on the interstate. I urge the NHTSA to review this very dangerous situation carefully and strongly recommend you have Chevy do the right thing and get this part fixed and replaced to keep us drivers safe!!

- Aurora, CO, USA

I was driving 35mph on city street going straight on the road and all of a sudden my car slowed down to 10mph. A pop up saying car engine power reduced came up on the dash bored along with my engine light

- Vacaville, CA, USA

When driving down a highway to drop off kid at school, the car sometimes slows down on its own and a message comes on stating engine power reduced. At 6:30 am in the morning when it's still dark, this is going to cause a car crash sooner or later. But dealer says there is no recall.

- Coral Gables, FL, USA

At less than 32K miles I"ve had issue with the shift to park indicator, the radio random on and off regardless if car is running or parked and off and now multiple indicators for an emission issue car will suddenly loose power or stop. I have taken care for service on regular basis and have had service repairs done twice to supposedly fix computer board. Unfortunately, service either says they have rest it or can't find issues I describe. I will park the car and let GM have it before I get killed in traffic!!!!

- Commerce, GA, USA

I was traveling in my vehicle on the highway going at least 65 to 75 mph and all of a sudden my vehicle beats two or three times and across the screen came the words 'reduce engine speed'. at that moment I was traveling in the middle lane and I had to safely get over to the far right median in the middle of traffic safely turn off and wait at least 10 minutes to start it back up. When I started my vehicle back up again I still received the same message. I then waited even longer and everything was ok but eventually the same issue continued to happen several times. I took my vehicle to get coded and the codes that were given to me were 2122, 2123, 2101. It's unsafe for this to happen especially I have a child this is no safe for me.

- Blue Island, IL, USA

While driving on freeway going 70 mph, my traction control, check engine light, and a warning flash across my dashboard saying engine speed reduced. My car went from going 70 mph to 40 mph and wouldn't go any higher. I immediately got off the freeway took pictures of the lights. Luckily I have a anti left device that reads off codes for my check engine like code P2138 is what came up. This is extremely dangerous, I had my [xxx] child in the car with me and was almost rear ended due to loss of power from such a high speed. Parts of this document have been redacted to protect personally identifiable information pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Everett, WA, USA

As I was driving on the interstate my check engine and traction control lights flashed on. All of a sudden the engine power down light lit up and I couldn't go above 30 mph. This has happened twice in the last week. Very scary when you are driving 60-70 mph on the interstate.

- Belleville, IL, USA

Driving at about 55mph then without warning message on instrument cluster showed low power engine mode with emission warning icon illuminated. Speed dropped almost instantly from 55mph to about 35mph!!!!! setting stage for possible rear end collision but was lucky this time.

- Fall River, MA, USA

While driving on a city street approaching a roundabout the engine warning light came on, the car reduced it's engine power, and the traction control sensor came

- Haslet, TX, USA

Vehicle abruptly slowed in heavy traffic for no apparent reason. Vehicle was diagnosed as having a faulty accelerator pedal. Part was replaced at owners expense 14 months into the life of the car. 8 months later the vehicle started to do the same thing for the next 5 months, sometimes 3 to 4 times in one day or not al all for several weeks. Car was again presented to dealer for diagnostic and it showed that the same fault occurred. This is a severe safety issue that needs to be addressed by General Motors. Fault codes P2138 for accelerator pedal, C0242 and U0401 for traction control system. Neither of these faults were addressed by the dealer during the repair.

- Howard City, MI, USA

While driving going at least 70 mph I get a engine power reduced message and it start happening every 10 minutes now as soon as you turn the car on it says engine power reduced and won't go over 30 mph. Had it hooked up to a machine and was told it was my accelerator which apparently is a issue in the 2017 Malibu's

- St Louis, MO, USA

The car randomly will reduce engine power, lowering speeds to 20mph or less. This happens unexpectedly. This has occured over 20 times over the past 7 days, including on the highway. I was driving on the highway at 70mph and the immediately dropped to 20mph, causing me to swerve to the shoulder and almost was hit by three on coming vehicles at high rates of speed.

- Arlington, TX, 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

Engine power reduced warning came on with engine light and traction light car speed dropped

- Rainsville, AL, USA

My vehicle has 6X, xxx miles on it. I first encountered a "reduced engine power" message on November 27, 2019 after driving 15 miles, turning the car off for about 30 minutes, and starting the car again. I called on-star to receive a diagnostic report, which returned a P2138 code. I limped the car home on a rural route with reduced power. Once home, the car was turned off for about 5 minutes. When I turned the car on, there was a check engine light but it ran fine. The light eventually turned off. The car ran fine until the evening of Monday, December 2, 2019. This time the reduced engine power condition occurred as I was in traffic commuting home from work, moving at a low speed. Luckily the road wasn't busy and I was able to pull into a gas station. I powered the car off and back on, and it ran fine all the way home. Based on some research on the internet, I believe the accelerator pedal position sensor is failing. This appears to be a widespread issue with these vehicles. I will be replacing the part on my own. The replacement part was very hard to find, supporting my suspicion that this is a widespread and likely an issue that GM is aware of.

- Red Bud, IL, USA

The contact owns a 2017 Chevrolet Malibu. The contact stated that the check engine and engine reduced indicators illuminated. The vehicle was taken to steve rayman Chevrolet (678-269-7886, located at 2155 cobb pkwy SE, smyrna, ga 30080) where the technician performed a diagnostic test and replaced the throttle control cables; however, the failure recurred. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was approximately 20,000.

- Marietta, GA, USA

Car will indicate 'engine power reduced' and will abruptly reduce speed. This is a major safety concern not only to myself but other drivers on the road as well. Why is there no recall for this problem? I see it is a major problem with these models of Chevy Malibu. Happens everyday, most of the time more than once. My commute to work is about 25min and it did it 3 times today.

- Newark, DE, USA

Reduced engine power is a norm for these new Chevy Malibu's my engender is reducing power again. They charges me $345 last December 3018 to replace the accelerator pedal and this October 2019, it's doing the same thing. It will reduce speed on highway under 50 mph and I could have been hit by other cars if they did not notice.

- Atlanta, GA, 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