2018 Chevrolet Malibu: start-stop system problems

Filed Oct 6, 2025 · Electrical, Engine · PA

I get a engine power reduced warning and check engine light is on for 3 start cycles and goes away. Auto Start/Stop after stopping, lights flicker and power is slow to come back on upon auto start and I get a power steering reduced warning.,

Filed Dec 12, 2024 · Driver assistance, Electrical · 101,000 miles · MI

The contact owns a 2018 Chevrolet Malibu. The contact stated while coming to a complete stop, the engine auto Start/Stop system engaged, causing the engine to shut off; however, the electrical system then became inoperable. The contact stated that upon depressing the accelerator pedal to resume driving, the vehicle failed to respond as needed. Additionally, the contact stated that while coming to a stop, the vehicle failed to stop immediately and rolled to a stop. The stabili-trak and electronic stability control warning lights were illuminated. A message advising to open and to close the windows was displayed. The contact stated that the check engine warning light was illuminated. The vehicle was taken to AutoZone, where it was diagnosed that there were debris in the throttle. The contact was advised to drive at high speeds on the highway to correct the failure. The contact followed the instructions; however, the failure persisted. The dealer was not notified of the failure. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and referred the contact to the federal safety agency Hotline for assistance. The failure mileage was approximately 101,000.

Filed Jul 3, 2024 · Acceleration, Fuel system · RI

car pauses after stopping at lights and stop signs and in stop-n-go traffic and won't go as soon as gas pedal is pressed. It hesitates then jerks forward once the gas is activated. Check engine warning is for stop/start transmission accumulator sensor! Cost to repair over $1300 and seems to be the same issue seen in thousands of 2018 malibu's that have been recalled??? My car does not show an active recall??? Chevy rep Andrea at 1‑800‑222‑1020 said sorry no recall for your car and to contact you with complaint? This issue almost caused my wife to have accidents after the car lurched forward after stopping. We were also beeped at many times as cars behind us were frustrated we could not move for 10-20 seconds after stopping! [XXX] [XXX] [XXX] Car is being repaired now by Belise Chevrolet Warwick RI 877‑553‑0957. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 5, 2023 · Electrical, Engine · AZ

The auto start stop function malfunctioning at a red light, causing vehicle to turn off completely. Vehicle will turn on once the brake is released. The transmission is slipping as well switching from first gear to second gear and causing a delay in departure.

Filed May 27, 2023 · Engine, Suspension · TX

I have a 2018 Malibu with a very long list of major issues. The Engine loses power constantly along with a “Engine Reduced Power” warning and check engine light. I get a constant “shift to park” message even after placed in park. All the steering wheel buttons/controls do not work. With the exception of the cruise control. Car almost red lines after the power message displays when you try to increase the speed of the vehicle. The back axle/suspension/hubs make a very loud popping sound when I back up or drive forward. Both back wheel assemblies make a very loud wobble noise when driving. Almost like the assemble is going bad. The Auto Stop/Start causes a lot of issues. It causes the car to jerk horribly and that’s when you hear the popping in the back axles the most. Idk if there is an option to turn this off in this model. But, if there is I can’t access the message center because the steering wheel controls/buttons don’t work. Also upon restart the car runs extremely rough and tries to die. The car has really bad powertrain issues. The car not only loses almost all power….. but, also acts like the transmission is slipping when taking off from a dead stop. Causing it to jerk really bad when the transmission actually catches. The brake system also seems like it has a lot of issues. Here recently the brakes seem like they don’t want to stop the car and that leads to pressing the brake pedal down harder resulting in the brake finally stopping the car in almost a dead stop. This could cause a rear end collision or a collision after your designated stopping point. Every time it rains my trunk gets soaked with water leading to a horrible mildew smell and damaged property in the trunk. Also, the steering wheel will start wobbling uncontrollably when driving down the road and then just stops. It causes a violent shake in the front end until it stops. I’m sure I missed a few things just because of how long the list is. I’m hoping for a solution to these problems.

Filed Jun 24, 2021 · Steering, Suspension · FL

When car restarts after being in Auto stop start mode the steering wheel jerks uncontrollably. The car obviously has a suspension problem. Dealership failed to repair issue properly after several attempts. Also appears dealer made false diagnosis to prevent repairs under bumper to bumper warranty. GM Dealer also refused to repair issue under Power train warranty. Another dealer wanted $555 just to check issue. A couple of weeks ago I suddenly lost control of the vehicle. I was at a red light. Car went into auto stop start mode. When light changed and car restarted, as I proceeded to take off the steering wheel jerked away from my hands, and I lost control of the wheel and car. Luckily it was a single turning lane and no other vehicle was next to me turning. I pulled off side of the road in shock. I drove about half mile and warning light displayed on dash. Warning Message States STEERING ASSIST REDUCED DRIVE WITH CARE" what was a brand new 2018 Chevrolet Malibu purchased in 2019 is now unsafe and inoperable. This steering component issue along with several others were brought to dealerships attention and were not acknowledged and were dismissed. After several other failed attempts this dealership purposely ignored this issue months ago while car was still under bumper to bumper warranty. Dealership also refused to repair this issue under powertrain warranty. 2018 Chevy Malibu has had 5 recalls to my knowledge. This has been spontaneously producing white smoke from underneath the hood on several occasions. I have video and witnesses. This car was sold as a brand new car. This car had recalls at the time of purchase and never disclosed the recall information. Also be advised that I cranked the car today just to keep the battery in tack because car has been sitting since June 10. The car choked, head lights went flickering, car could barely stay on. it appears to be an engine issue. These cars should not be on the road. They are not safe.