2017 Chevrolet Malibu service brakes problems

“I have two separate incidents regarding the vacuum pump on my 2017 Chevy Malibu. About two years ago, I was driving on the freeway, my brakes locked up, Car was dying, turns out my vacuum pump had exploded internally, causing metal pieces to go into my engine, it was in my oil as well. I had to replace the vacuum pump, and because it broke, it threw off the timing on my camshaft. I had a mechanic look at it and he had to tap the camshaft back into timing. Today, October 2026, I was on my way home from work, and my brakes were locking up and grinding. I had to use a lot of pressure for the brakes to even work. The break is very hard. Again, another vacuum pump failure. I’m hoping this time it does not lead to another camshaft issue as that is an expensive repair.”

“I was driving on the tollway at 75 mph when I saw stopped traffic ahead of me, and when I tried to apply the brakes, they went from soft to hard and completely stopped working; I had to swerve across lanes into the grass to avoid a massive accident and to save my life, as well as the lives of my passengers and the people who would have been involved. The vacuum pump had completely blown up, causing the brakes to fail, and it also destroyed my camshaft, so I lost engine power as well. I looked it up online and it is a very common issue that GM needs to address because of how severely dangerous it is.”

“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”