2017 Chevrolet Malibu

While driving my 2017 Chevrolet Malibu LT equipped with the 1.5L turbocharged engine, the brake vacuum pump failed due to the pump’s mechanical drive/tang shearing. The failure resulted in loss of vacuum assistance to the power brakes, creating a significantly harder brake pedal and a serious safety concern because braking assistance can be reduced and stopping may require substantially more effort. After removing the failed pump, I found that part of the pump’s drive mechanism had sheared off and had to be retrieved from the camshaft area. I am retaining the failed pump and broken component. I am requesting that this failure be investigated as a potential safety defect because a failure of a component responsible for brake-assist vacuum can affect the vehicle’s ability to stop safely.

I have a 2017 Chevy Malibu 2.0 T. The incident involved the braking system. I was driving and as traffic came to a stop, I pressed the brake to stop and my brakes gave out. I immediately lifted my foot and press extremely hard on my brake pedal and was able to stop though the stopping distance was much further and nearly caused an accident. I have now taken the vehicle to a Chevy certified dealer and it has been identified as a brake vacuum pump failure. GM has had many issues with the brake vacuum pump across many of its models.

I was driving back home and stopped at a red light. When the light turned green I started driving, but my car was jerking a little too much. I pulled over and turned my car off. When I cut my car back on my brake became very hard to the point I had to push down extra hard to stop my car. I started back driving home once I realized my car needs to be turned completely off and sit. While I'm driving I see a message on my dashboard saying "Engine power reduced." Luckily I made it home safely with no wrecks, but when I had to brake my car was still moving jerking while in place. Also when I made it home and turned my car off I heard a fan like noise that eventually stopped.

The GM Shift to Park recall has been an issue that has affected various General Motors (GM) vehicles. The primarily impacting Chevrolet models like the Malibu, Traverse, Volt, and the 2019 Chevrolet Blazer. It’s essential to be aware of the problem, its implications on vehicle’s safety, and the steps required to address it. In simple terms, the Shift to Park defect prevents drivers from shutting off and locking their vehicles, even after putting the car in park. This situation poses a potential safety concern, as drivers might mistakenly assume their cars are securely parked and powered off while walking away. The issue has been prevalent enough for the company to issue a Technical Service Bulletin (TSB) on June 7, 2021. The TSB specifically targets the 2017-2018 GMC Acadia, while also mentioning the Malibu, Traverse, Volt, and other 2016-2019 Chevrolet models. The bulletin provides guidance on diagnosing and addressing the “Shift to Park” problems, although it does not present a definitive solution to the underlying issue. GM CUSTOMER SERVICE REFUSES TO FIX IT

Was driving on highway and starting to exit and my engine light came on and it alerted reduced engine power. I had to slam on my brakes but they were very hard to press and almost non existent and steering was also difficult. Managed to get car to side of road but due to very hard to non existent brakes I did graze a truck and damaged my rear drivers side fender. I am very lucky I didn’t get injured and was able to mostly miss the cars stopped in front of me. I also have the shift to park issue happen at least 4 times a week.

When I accelerate and try to stop brakes goes down to the floor. I’ve had my rotors. Brakes changed and it’s impossible to stop at times. Purchase vehicle. 2018 and the check engine light came on shortly after I purchased it. It’s been on. I’ve got diagnostics. It’s unknown why! Tire sensors has been changed, including with new tires and none of them work and the airbag light is illuminated. I am concerned about my safety in this vehicle. I reported many times and I’m unaware of any recalls. Please help.

I was driving my car on the highway doing 65 mph when all of a sudden my car started rapidly jerking losing the power to accelerate and entering “limp mode“ there was multiple cars behind me when my car lost the power to accelerate. I was in the far left lane and couldn’t even go higher than 7 miles an hour and had to cross across three lanes at 7 mph on a 65mph highway to pull over. I had my children in the car and almost caused a huge accident dude to this issue. The issue in hand is the vacuum pump. It completely shattered in my engine, causing severe engine damage. And it caused my brake pedal to become hard as a rock. I couldn’t break without using my emergency break. I had no brake power at all. My car had to be towed.