What 690 owners told NHTSA about the 2018 Chevrolet Malibu Limited

The second morning in a row my 2018 Chevy Malibu overheated. Early in the morning, the temperature out was about 45-50 degrees, I was driving on the highway about 65-70 mph, I turned on the heater and my cars temperature gage immediately shoots up and the "overheating engine" warning lights start flashing. Confused I pulled over popped the hood there were no signs of smoke or over heating sounds coming from the motor. I got back into the car, turned off the engine, turned it back on, and the temperature gage immediately falls to normal temperature. Happened two mornings in a row now.

NHTSA ODI 11442080

This has been going on since i got the vehicle, At any moment you could be driving 70MPS and all of a sudden your vehicle drops to 35, and man is it scary especially on the expressway. you are NOT able to accelerate. You have to pull over where you are, shut the vehicle off and restart it to rest it till it does it again, and it does it ALOT. I love this vehicle but this is NOT safe, and i'm tired of paying for this and should NOT have to when its in writing from GM. This will be my 3rd time taking my vehicle in for this same issue. i've read up on this and did my research this has been going on since 2016-2018 Malibu vehicles. I've reached out to GM asked about recalls, they said there is none. I asked how do i file a complaint so this doesn't happen to others. they told me i have to make a complaint with the dealership(that right there told me that calling GM customer support directly they are not willing to help with this safety issue. that is so sad too. what is happening to this world, the kindness and compassion for your customers and quality of items you purchase. I will probably be doing a law suet as well as this complaint. I pray you all are able to do something to help me and others having this issue.

NHTSA ODI 11440910

When I push the button car won’t start

NHTSA ODI 11440972

My car is showing “ Shift To Park “ error on dash and i can’t properly turn off car . Once since the error on screen the doors were locked and my son and i could not get out of the car . The Also when driving the car ,, it does frequent jerking . The car also was doing it one time when we seen smoke coming from under the hood and we could not get out

NHTSA ODI 11440043

Car suddenly stops and takes several minutes to turn back on. During the time the car is off there is no electrical power. After a few minutes (5-10) electrical power returns and car is able to be started. This has happened everywhere from our driveway to a highway ramp and happens without warning.

NHTSA ODI 11438144

“Engine power reduced” shows on dash after I’ve taken it to the dealership. I’ve been on the highway where the speed slow down drastically cars coming behind me! Very dangerous! Also “shift to park” displays when it is already in park! Have to either wiggle the gear shift or, turn car off/on several times for the message to go away. Also when backing up, there’s a popping noise in the rear. Dealership acknowledged I want the only customer with this issue. Claimed they didn’t find anything wrong. I purchased this vehicle in 2019 and it was only a year old. Issues started almost simultaneously at the end of 2019…Too new for all of these issues.

NHTSA ODI 11437961

The engine shut down while driving and about caused me to wreck. Luckliy traffic was light. Jack Schmitt Chevrolet said it was a factory defect in the turbo function of the car and Chevrolet would not pay for the repaires. $2290 I was charged. They also said it was not the software issue of the outstanding recall for this same car that was causing this same exact problem.

NHTSA ODI 11437301

The contact's grandson owns a 2018 Chevrolet Malibu. The contact stated that while his grandson was driving 65 MPH, the reduced engine power warning light illuminated, and the vehicle started to stall. His grandson was able to restart the vehicle and drove the vehicle off the highway. The contact then met his grandson in a parking lot where the vehicle would not restart, and the check engine and reduced engine power warning lights were illuminated. Due to the failure, the contact had the vehicle towed to a dealer and he was informed that the failure was related to a defective camshaft. The contact did not believe the stated cause for the failure. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was 61,030.

NHTSA ODI 11434971

My ‘18 Malibu LT has over 39K miles , and just tonight, i started my car , the engine light and traction control light both came on, followed by a message saying “Engine Power Reduced”. I then decided to drive for a little to see if i notice any problem. After driving for about 4 minutes , my car went from 37mph down to 20mph . It felt like the engine was forcing itself . So i then pulled over to the side of the curb, turn the car off, then back on. i noticed the warning engine light was still there but the traction light weren’t there no more. So i drove back to my place , turned my engine off. Then i plugged my diagnostic device to see what code(s)were they, and 1 code came up and it was P2138. Which is Throttle/Pedal Position Sensor. Oh by the way, I also would like to mention one more thing which is the “Shift to Park” message i started seeing whenever i park my car (putting the gear in park) and this first happened when my car was at 38K Miles (about a month ago).

NHTSA ODI 11434448

Keep getting a warning on my dashboard saying that the engines power is reduced.

NHTSA ODI 11434366

2018 CHEVROLET MALIBU. CONSUMER WRITES IN REGARDS TO ISSUES WITH THE ENGINE. THE CONSUMER STATED THE ACCESSORIES STAY ON WHEN TURNING THE ENGINE OFF. THE DASHBOARD READS SHIFT TO PARK EVEN THOUGH THE GEAR IS IN PARK. THE ACCESSORIES THEN TURN OFF AFTER ABOUT 2 MINUTES. THE CONSUMER REQUESTED TO HAVE THE VEHICLE REPAIRED UNDER WARRANTY.

NHTSA ODI 11433762

Car powered down while driving all the lights lite up on the dashboard. When driving it either speeds up on its own or while driving it will just go slower without me letting up off the gas.

NHTSA ODI 11431356

Water leaking from under the glove box. Has passenger front and back floor soaked. Foul smell Car losing power in fuel injector. Stalling while driving.p0317 and other codes. Has been inspected by Gateway Buick in past, they charged me 200 dollars and the nhtsa issue said they would not. The vehicle is not running and will not crank.

NHTSA ODI 11430928

While driving on the highway my car decelerated from 60 mph to 25 mph in an instant. This almost caused a major fatal crash. My check engine light is on saying engine power reduced.

NHTSA ODI 11430935

While driving 70 mph, I get an Alert that stated reducing speed. And my check engine light came on. This is not the first time. Lucky I was able to get off the Highway without getting into an accident. Also my car sometimes will not cut off because it says my car is in shift even though I have it in park. This is dangerous to have a car reduce speed while driving 70 mph to Abruptly go 40 mph. Last time this happen a month ago no codes came up and the check engine light eventually went off. But now my check engine light is back on again.

NHTSA ODI 11430238

I was driving on the highway when my vacuum pump went out. Lucky I know how to handle a brake less situation. This should have never happened especially with a 2018 chevy malibu. We need a recall on all 2018 vacuum pumps. This will probly happen to more people if you dont.

NHTSA ODI 11429134

The contact's daughter-in-law owns a 2018 Chevrolet Malibu. The contact stated that while driving various speeds, the vehicle would shut-off without warning. The contact stated that the vehicle would eventually restart after multiple attempts and would resume normal driving operation. As the failure persisted, the EVAP warning light illuminated on the instrument panel. Upon investigation, the contact discovered NHTSA Campaign Number: 19V642000 (Electrical System, Fuel System, Gasoline, Engine) which he linked to the failure. The vehicle was then taken to a dealer and the contact was informed that the vehicle was not included in the recall. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 40,000.

NHTSA ODI 11428667

Low engine pressure

NHTSA ODI 11428197

The contact owns a 2018 Chevrolet Malibu. The contact stated that the vehicle failed to start up. Additionally, the brake pedal was applied but was hard to depress. The engine power reduced message was displayed. The check engine warning light was illuminated. The vehicle was towed to the local dealer where NHTSA Campaign Number: 19V642000 (Electrical System, Fuel System, Gasoline, engine) was completed. The vehicle was repaired however, the failure recurred. The manufacturer was not contacted. The failure mileage was approximately 130,000.

NHTSA ODI 11424740

The contact's mother owns a 2018 Chevrolet Malibu. The contact stated while the vehicle was stationary at a traffic light while depressing the accelerator pedal to move forward, the vehicle began to hesitate. The contact stated no warning light was illuminated. The contact was able to drive to her destination. The contact stated a month later after she had an oil change performed on the vehicle, she saw smoke exiting from the rear vehicle. The contact took the vehicle to a local dealer however, the mechanic was unable to duplicate the failure. The contact stated she continued to experience the failure. The vehicle was towed to another local dealer Bomnin Chevrolet Dadeland (8455 S Dixie Hwy, Miami, FL 33143:(305) 669-2709) however, the mechanic was unable to duplicate the failure. The contact stated she continued to experience the failure. The contact towed the vehicle to a third local dealer Bomnin Chevrolet West Kendall (11701 SW 152nd St, Miami, FL 33177:(305) 964-3099) and the mechanic was unable to duplicate the failure. The contact towed the vehicle to a fourth local dealer Ed Morse Sawgrass Chevrolet Service Center (14401 W Sunrise Blvd, Sunrise, FL 33323:(888) 366-8808) and the mechanic was also unable to duplicate the failure. The contact stated after the vehicle was serviced at Ed Morse Sawgrass Chevrolet Service Center, she began to experience failure with the gear shifter, the auto start, the steering gear, the suspension, and the brakes. The contact stated that the vehicle was taken back to Ed Morse Sawgrass Chevrolet Service Center and had the gear shifter, the auto start, the steering gear, the suspension, and brakes replaced. The contact stated she continued to experience the failure and the vehicle was not operable. The manufacturer had been informed of the failure. The contact stated she continued to experience the failure. The failure mileage was approximately 20,000.

NHTSA ODI 11424788

The contact owns a 2018 Chevrolet Malibu. The contact stated while driving at an undisclosed speed and making a turn the vehicle stalled with the check engine warning light was illuminated. Additionally, while driving approximately 80 mph, the vehicle stalled. Another time while driving approximately 50 mph the vehicle stalled. The vehicle was slow to start and several attempts were made before the vehicle started. The contact stated while stopped, the vehicle was slow to accelerate. The vehicle was taken to the local dealer to be diagnosed. The accelerator pedal and system update were performed. The vehicle was repaired however, the failure recurred. The manufacturer was notified. The failure mileage was approximately 35,000.

NHTSA ODI 11424798

I just went and picked up my car after having the recall cone.. Vin#[XXX].The car stalled on me when trying to trying to accelerate I almost got hit because of this...This has happen way to many times. This repair was supposedly done on 07/07/2021. Also this car had the same issue and a recall was done back in 2019. This car is totally not safe. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

NHTSA ODI 11423779

Several times I have had the engine light come on and a warning of Engine Power Reduced. I have had it checked several times and some it was not able to be diagnosed but others the various modules were replaced - but the issue is not fixed. What is it going to take to have this brought to NHTSA attention as well as GM to get this corrected on a recall? I have almost been hit by 18 wheelers on the freeway due to my car dropping from 75 MPH to 30 MPH and there is nothing you can do when you are on a busy freeway in a construction zone but pray. I have read SEVERAL statements and reports of this happening over and over with other owners. I will definitely loan my car to an investigator at NHTSA or Mary Barra, President of GM, and let them see how safe they feel in a situation when this happens, especially when you have grandchildren or your own children in the car. It has been reoccurring since I purchased the car in 2018 with only 4 miles on the odometer so the information gathered below is only a fraction of the information that is needed. Maybe a selection on the "Was there a crash" and "Was there an injury or fatality?" should be "ALMOST, BU THANK GOD, NO"

NHTSA ODI 11420146

My car will not start. And it turn off at stop lights and when does the gas saving shut off, it doesn't turn back over. Im pretty sure it's the fuel injectors

NHTSA ODI 11418765

The car doesn't start when I press the starter button. It clicks, turns off, and then factory resets all the dash electronics. It's been doing it ever since I got the car and even when at a stop while the car was on, the fuel saving systems will shut off my car at the light but it won't turn back on when I start to lift my foot off brakes.

NHTSA ODI 11418766