2023 Chevrolet Malibu

The contact owns a 2023 Chevrolet Malibu. The contact stated that while driving at an undisclosed speed, the vehicle hesitated and failed to accelerate as needed. No warning light was illuminated. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 70,000.

The issue appears to involve the engine and turbocharger system. The vehicle has shown symptoms consistent with a turbo underboost condition, including loss of power and reduced acceleration. A mechanic indicated that the symptoms may be consistent with diagnostic code P0299 (turbo underboost). The vehicle is available for inspection upon request. This issue affects safe operation because the vehicle loses power unexpectedly while driving, which creates a risk when merging into traffic, accelerating, or maintaining speed in normal traffic conditions. The loss of power is inconsistent and can occur without warning, increasing the potential safety concern. The problem has been ongoing. The check engine light is currently on and has remained on. The warning light first appeared around January 2026, and the issue has continued since then. Similar turbocharger-related issues have been reported in prior model years, including 2022 Chevrolet Malibu vehicles, where coverage or corrective actions were provided, raising concern that the same or similar issue may be affecting 2023 models.

The contact owns a 2023 Chevrolet Malibu. The contact stated that while driving 75 MPH, the vehicle jerked abnormally with several unknown warning lights illuminated and unknown messages were displayed. Additionally, there was a white fuel warning light illuminated with the message “Low Fuel” displayed after refueling the vehicle. The white exclamation warning icon with the "Shift to Park" message, the check engine warning light was illuminated, and the “Engine Power Reduced message was displayed. Additionally, the power train and ESC warning lights were illuminated. The vehicle was pulled over to the side of the road and towed to the residence. The vehicle was taken to a dealer, but the failure was not replicated; an aftermarket tracker was disconnected. The failure persisted, and the vehicle was taken to the same dealer, where it was diagnosed and determined that the battery needed to be replaced. The vehicle was repaired, but the failure recurred the following week. The vehicle was then taken back to the same dealer, but the failure was not duplicated. The manufacturer was not notified of the failure. The failure mileage was 57,619.

MY 2023 CHEVY MALIBU HAS A MISSING TURBOCHARGER SCREW THAT RANDOMLY CAME OFF FROM UNDER A METAL PLATE ON ITS OWN, GMC HAS A RECALL ON 2022 -2023 CHEY MALIBU WITH TURBO CHARGER ISSUES BUT THEY WONT COVER MINES BECAUSE IT DIDNT COME FROM A CERTIAN FACTORY ALTHOUGH THEY KNOW A HELL OF ALOT OF CHEVY MALIBU OWNERS HAVE TURBO CHARGER ISSUES AND THAT FACTORIES SHARE PARTS WITH OTHER FACTORIES THEY SAY THEY WONT DO A RECALL ON ALL THE MALIBUS UNLESS ALOT OF PEOPLE REPORT AND NHTSA MAKES GMC REALL ALL CHEVY MALIBUS TURBOCHARGER ( GM launched a special coverage program for 2022-2023 models with 1.5L engines due to turbocharger failures leading to "Reduced Engine Power". The program covers, or potentially reimburses, repairs up to 15 years/150,000 miles)BUT MY VEHICLE VIN ISNT COVERED.

Check engine light will come on entire car will shut off. Shuttering, braking locks up, all power is reduced, especially engine power. car will get towed to the Chevrolet dealership in temple, Tx and Killeen, Tx for repairs. When hooked up to the scanner all 7 modules show as faulty. Chevrolet of Killeen replaced only 3 of the modules stating that was the issue. two days after repair same issue has happened. when hooked up to the scanner again all modules were faulty again including the ones that were just repaired. car has been in the shop for 100 days now. the car will cool down, and the check engine light will reset itself showing no issues repeat the process.

At 40,000 miles, check engine light illuminated. Code reader stated P023F fuel pump secondary circuit open. When trying to take 2023 Malibu to dealership for repairs car would not start. Had to have car towed to dealership. Dealership confirmed same fuel pump error code. Confirmed no recall. Car is currently being repaired by dealership at my expense as dealership & GM says fuel pump is not covered by powertrain warranty. Cost is over $1500! Fuel pump should last longer than 40,000 miles! Please research this faulty fuel pump!

After purchasing a brand new chevrolet malibu, about 4 months into droving it; the check engine light illuminated and the next day, an error message of “engine power is reduced” was displaying on the dash. The vehicle was turned over to the dealership and two different sensors were replaced. After a day of having the vehicle back after repairs, the check engine light illuminated again. I returned the vehicle to the dealership and was later told that they were unable to duplicate the scenario and the check engine light did not appear anymore. I picked the vehicle up and after another day of driving, the check engine light illuminated for the third time, again with the same engine power reduced message. Vehicle was slow to accelerate from a stop position. The dealership claims to still be unable to duplicate the scenario with no fix at this point.