2019 Chevrolet Malibu

IN DECEMBER 2024, DRIVING TO WORK WHEN CAR ABRUPTLY STOPPED (NO POWER). WAITED FOR A WHILE FOR MY HUSBAND TO ARRIVE. VEHICLE STARTED AGAIN, DROVE TO TROPICAL CHEVY AT 8880BISCAYNE BLVD, MIAMI SHORES, FL FOR DIAGNOSTIC TESTING (PAID $160. RESULT - TRANSMISSION PROBLEM ESTIMATED AT $1,800). DID NOT HAVE VEHICLE FIXED. DECIDED TO HAVE VEHICLE EXAMINED AGAIN IN SEPTEMBER 2025; PAID $160 DIAGNOSTIC FEE, ESTIMATE A WHOPPING $8,400!!!!! DID NOT HAVE CAR FIXED.

The vacuum pump has a tendency of breaking and when it does it affects the exhaust camshaft making the car completely inoperable. When this happened my vehicle lost all brakes and power and would not start. This happened suddenly with no warning and left me stranded in the middle of lanes of travel. This is a well known issue with the Chevy 1.5 L and is documented in the TSB Bulletin #21-NA-268. The vehicle was inspected following the TSB number provided and diagnosing via the information provided.

This model of 2019 Malibu, does not have the function to shut off the auto start/stop feature. I have had the car for a few years and in the past year this feature has begun to malfunction multiple times at random. When in drive and approaching a stop sign or red light the Malibu will engage in the auto stop feature. There have been occurrences when after this is engaged and I lift my foot to continue to drive that the vehicle will not restart and be completely shut off. The dash will tell me to “shift to park” as if believing that I am in drive but that I shut off the vehicle. I will have to shift the vehicle to park and then push the on/off button to restart the vehicle several times. It has taken upwards of a whole light change cycle for it to be restarted. It is exceptionally dangerous as I am often in a busy intersection light with my vehicle unable to go. There is no obvious trigger and it occurs at random intervals. There is no option to turn off the auto start/stop feature and it is the only thing that causes it to occur. No warning lights or indicator has occurred. I have taken the vehicle twice to the dealership as well as another mechanic and they were unable to diagnose any problem or replicate the issue. Since it occurs at such unpredictable times they were not able to identify anything, however I do have a video taken of it occurring to me. The dealership said that GM has not seen anything like this, yet I have read about other similar issues online with this model. Safety is extremely at risk for myself and others as the car is essentially turning itself off while I’m in the middle of a drive and takes several moments to be able to drive again. This has occurred about 10 times since it begun and seems to be more frequent. I’ve replaced the battery and reset the BCM as two cautionary measures and neither has resolved the issue. I have a video of it as well but I can not attach to this form.

The contact owns a 2019 Chevrolet Malibu. The contact stated that on two occasions while driving 35 MPH, the vehicle lost motive power. There were no warning lights illuminated; however, the contact determined that the failure was due to the throttle body. The vehicle was repaired. The local dealer was not contacted but had not diagnosed or repaired the vehicle. The manufacturer was contacted, and informed the contact that the VIN was not under recall. The failure mileage was approximately 96,000.