2018 Chevrolet Malibu Engine Problems

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.

Engine power reduced car shuts off and will not start

Engine Reduced Power Light on dash. Vehicle stalling

!Engine Power is Reduced

The contact owns a 2018 Chevrolet Malibu. The contact stated while driving at an undisclosed speed, the check engine and the turbo charger warning lights illuminated. The accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The vehicle was taken to an independent mechanic where it was diagnosed with turbo charger failure. The contact was informed that the turbo charger needed to be replaced. The vehicle was not repaired. The dealer was made aware of the failure but provided no assistance. The contact was instructed to schedule an appointment for diagnostic testing and provided the cost for the diagnostic test. The contact referenced an unknown recall; however, the VIN was not included. The manufacturer was made aware of the failure. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 140,741.

The contact owns a 2018 Chevrolet Malibu. The contact stated that while the vehicle was parked, the contact noticed a gasoline odor coming from the vehicle. There was no warning light illuminated. The vehicle was towed to the dealer, where it was diagnosed that the injector seals had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 165,660.

The contact owns a 2018 Chevrolet Malibu. The contact stated that the messages "Engine Power Reduced", "Shift to Park", and an unknown message were displayed intermittently. The contact stated that while her daughter was driving approximately 40 MPH and making a turn, the vehicle stalled. The driver was able to pull over to the side of the road. The vehicle failed to restart and was pushed to the residence. The vehicle was then towed to the dealer, where it was diagnosed and determined that the engine needed to be replaced. The vehicle was not repaired and was towed back to the residence. The manufacturer was not notified of the failure. The failure mileage was unknown.

The contact owns a 2018 Chevrolet Malibu. The contact stated that while on a trip and traveling at high altitudes, the check engine warning light was displayed on the instrument panel. The contact used a code reader which showed that the barometric pressure sensor was defective. Once the contact returned home, the mass air flow sensor was replaced. The following year while traveling in the same region at high altitude levels, the failure recurred. The contact also stated that the engine booster had started to fail due to ice accumulation in the charge air cooler (CAC), which restricted airflow. As a result of the failure, the vehicle failed to accelerate above 25 MPH. Upon investigation, the contact discovered Technical Service Bulletin No: 18-NA-069; which the contact linked to the failure. The dealer was notified of the failure, but the contact was informed that the vehicle was out of warranty. The manufacturer was also notified of the failure and referred the contact back to the dealer for assistance. The vehicle was not repaired. The failure mileage was approximately 76,000.

Vehicle suddenly went into reduced engine power mode and nearly caused a crash. We pulled off to the side of the highway. Turned the car off and waited for about 5 minutes with our small children in the back seat. Restarted the car and check engine light remains on but the reduced engine power warning turned off. This just happened today and have not been to the dealership. Hoping Chevy recognizes this safety issue and issues a recall as many others have reported the same issue.

Reduced engine power message pops up when I’m driving at 45 or lower speed. First time this happened was about 4 months ago, and couldn’t drive faster than 30 mph. After starting my vehicle a couple of times the message goes away. This reduced engine power message is almost a daily thing, but now it doesn’t affect my speed anymore, I can go at 65 mph and even with that warning light on.

The contact owns a 2018 Chevrolet Malibu. The contact stated that while driving at various speeds, several unknown warning lights were flashing on the instrument panel. The vehicle was taken to a dealer where a diagnostic test was performed, and the contact was informed that there was no oil in the vehicle. The contact refuted the mechanics findings and had the vehicle towed back to the residence. The contact then stated that while driving at 50 MPH, the vehicle lost power with the message "Engine Power Reduced" displayed. The contact pulled over to the shoulder and turned off the vehicle. After restarting the vehicle, the vehicle hesitated while depressing the accelerator pedal, and the failure reoccurred. Despite the failure, the contact was able to drive the vehicle back to the residence. The manufacturer was notified of the failure and the contact was informed that there was a warranty on the vehicle that covered the failure; however, the warranty had expired. The vehicle was not repaired. The failure mileage was approximately 141,000.

Engine Power Reduced Defect in Chevy Malibu Vehicles. Had the "engine power reduced" message show up countless times.

While driving, my car’s dash suddenly showed a warning message that state “engine power reduced”. I was driving around 45mph at the time of the incident.

Engine power reduced

Check Engine Light constantly comes on . Pedal position sensor is faulty. engine power reduced pops up

The contact owns a 2018 Chevrolet Malibu. The contact stated while driving 65-70 MPH and overtaking another vehicle, the vehicle decelerated to 45 MPH unintendedly, with the "Engine Power Reduced" message displayed. The contact exited the highway and continued driving. The contact stated that the failure had been reoccurring increasingly and also occurred while driving 25 MPH. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed nor repaired. The failure mileage was approximately 58,000.

MOTOR DIED GOING DOWN THE ROAD Car is available for inspection If I had been crossing the street without the aid of a stoplight, I would have been T-Boned Vehicle problem has not been reproduced or confirmed by the dealer. Vehicle component has not been inspected by dealer or anyone else. The check engine light and logo came on as the engine was shutting down. I went into the trunk on the passenger side and shook and twisted the wires going into the control module mounted to the trunk wall. This was suggested for the 2016 Malibu which had a recall. There should be a recall on the 2018 also. After repeated shaking and attempting to start the motor, it finally started. I drove it home and parked it. When I went to read the code, the engine started and ran for a couple of minutes and stalled again. The code was P2BB3.

I was driving app. 41 miles per hour in heavy Friday traffic on 10/7/2022 and the check engine light lit up and the car dropped to about 20 miles per hour and would not pick up speed. The rpm was staying on about 3000. I pulled over and called my husband. We set for awhile and restarted the car and the light went off and it drove as normal

On 3 occasions, my vehicle has displayed the message “Engine Power is Reduced.” It has 83, 990 miles. I took it to the dealership to have them check it out, but I was told they couldn’t check it because the check engine light was no longer on. This is a problem because the warning will come on, then the check engine light turns off after the car has been turn off. The Chevy dealership says there is a three day wait for them to conduct a diagnostic, but what are the chances the check engine light will remain on? After having gone through this process on three separate occasions, the check engine light hasn’t appeared the next day. I have read about how others may be experiencing this problem and they do not have some resolution to this kind of problem. My wife generally drives this car, so I fear for her as she travels to and from work.

The contact owns a 2018 Chevrolet Malibu. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power. The vehicle was towed to the dealer and diagnosed with ECM module failure. The dealer informed the contact that the ECM module needed to be replaced. The vehicle was not repaired and remained at the dealer. The manufacturer was made aware of the failure and informed the contact that the warranty had expired. The failure mileage was approximately 46,285.