The Power Brake Vacuum Assist Failure nearly caused a wreck. The part failed while we were driving on [XXX] going 65 miles per hour on a busy highway. As the breaks gave out the engine light said -??Reduced Power-??. Moments later, the breaks stopped working and the engine stopped running. We were able to coast off the highway and into an HEB parking lot and have the vehicle towed. The mechanic took the part off and found that it was in pieces causing further examination of the engine to look for the missing metal. Pictures are available to see the damage. Even after completing the repairs the vehicle is showing reduced power. We are still trying to get it fixed but understand that the Chevrolet company is aware of the issue but never issued a recall. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- League City, TX, USA

1, break vacuum pump. I have the defective unit available 2. My safety, my passengers and all other drivers were put at high risk 3. Defective vacuum pump verified my independent mechanic 4. Inspected by mechanic. Have not had anyone else inspect. 5. No warning of complete break failure

- North Augusta, SC, USA

1) brake system failed, yes it-??s available for inspection 2) the brakes became very hard not being able to push down to use brakes, had to go to the right into ditch to avoid many vehicles that were ahead of me, this was very scary for my family and I, I-??ve had nightmares since. 3) brake booster has been confirmed by the dealership as the problem 4)inspected at the hm dealership 5) There was no warning lights before incident happen

- Clovis, NM, USA

Engine reduced while on the highway.

- Shreveport , LA, USA

Shift to park warning continues to come on daily when I go to put my car in park. I have to fidget with the shifter to get the computer to recognize that my car is in park and the car will then shut off. Recently I was stopped at a red light, tried to accelerate at the green light and my car completely shut off, while I was still in drive. I could not accelerate and had to place my car in park. Then my stabilitrak sensor came on, along with a notice that my battery saver was on. I had to call a police offer to help me off the road. The car was then able to turn on and I drove it home but this is not safe.

- Chandler, AZ, USA

Brake failure, turning into my parents driveway I had to swerve to miss a truck and drove in the yard because of it. It has been diagnosed a faulty brake vacuum pump that caused this failure. I am getting it looked at by a mechanic of Friday and hope that this issue didn't cause further problems with the engine/camshaft. From doing research it seems that many other people have experienced the same issue with the same year vehicle (2017 Chevrolet Malibu). I have also in the past had to get my car fixed by a GM mechanic for the issue of the car giving the "reduced power mode" and basically shutting off while driving down the street. That has now been fixed but was also an issue GM was aware of but I never received a letter or anything about the issue or that there was a recall on it.

- Bridgeport, MI, USA

When parking car we place the shifter in park, and psh the button to turn off car it states to -€œPut shifter in Park-€ after wiggling the shifter that is clearly in park the car will shut off. Also the breaks will pulsate at slower speeds like the ABS is kicking in, but is not the case. Along with the pulsating there are loud thumping noises. Car today when driving did same thing the said -€œreducing engine power-€ almost made it home then completely died on me in middle of road. Was told it could be because of bad vacuum pump, brake booster sensor, and brake booster by my mechanic. He said in newer cars this would prevent the car from starting.

- St. Clair, MO, USA

Driving down highway slowed down brake assist kicked in for no reason I was stuck in traffic not moving but maybe 2 mph brakes locked up got super hard codes read brake booster and vacuum pump. Screen went black -€œparking assist off-€ came on dashboard earlier that morning but nothing seemed to be wrong with the car. Thank God I wasn-€™t going faster I could have died!

- Dallas, TX, USA

While driving on 12/28/2022, my brakes suddenly became very difficult to apply pressure- almost causing a cramp in my calf because I had to press down so hard. Took the car to a repair shop, only for them to tell me my brake pads are fine. It turns out the problem is with the vacuum pump associated with that part of the car. Looked online to see if this was a common problem and as it turns out, there's a class action lawsuit in litigation about this very issue.

- Fullerton , CA, USA

The contact owns a 2017 Chevrolet Malibu. The contact stated that while pulling into a gas station the vehicle lost motive power without warning. The contact stated that she was informed to top off the fuel and the vehicle was able to restart and drive with no further issues. The contact stated that the vehicle was able to restart several hours later. The vehicle was not taken to a dealer or independent mechanic for diagnostic test or repair. The contact stated that recently while driving approximately 20 MPH, the brakes locked up as the brake pedal was depressed and an abnormal noise was heard. The contact stated that the vehicle stopped as the brake pedal traveled to the floor. The vehicle was inspected by an independent mechanic that diagnosed the failure as a defective brake vacuum pump that needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure however, no assistance was offered. The failure mileage was unknown.

- Houston, TX, USA

My vehicle has become harder to bake almost to the point that the brake doesn-€™t work took my car to have it accessed and was told my brake booster is damaged and causing my car to barely brake it is extremely dangerous can cause harm to myself or my family

- Cincinnati , OH, USA

Small trip to Georgia granddaughter-€™s birthday. Vehicle just went in limp mode. Lost power brakes. My brothers code reader showed P0 014, P0 017, P1101, P0016. I-€™m pulling up and showing on NHTSH for open recalls and one complaint. I-€™m trying to make a complaint. The car we turn off. Wouldn-€™t crank back. Sometime when you wiggle the wire by the throttle it would crank. No power breaking. No engine pole to go up hills. No speed. On Google and YouTube I have found recalls of powertrain automatic transmission six recalls on the website. CHEVY MALIBU vacuum pump recalls. I-€™m having a vacuum leak you can hear it when the car does turn off the engine fan runs for ever. I-€™m showing problems with CHEVY MALIBU vacuum Val cover gasket recalls. Problems with CHEVY MALIBU brake vacuum pump recalls. Problems with CHEVY MALIBU 2013 through 2022 booster vacuum pump recall the defect. Problem showing GM 1.5 L POO14 Dash P0017 exhaust camshaft timing. Somethings gone major wrong and I-€™m showing recalls and I am looking for GM to fix this car I have a A lot of money in it and still owe a lot of money on it.!

- Florence, SC, USA

Vacuum pump has stopped working properly causing it very difficult to brake. Autostop feature has stopped working properly due to this problem. This is the second time I have had issues with the vacuum pump.

- Alvin, TX, USA

First incident, vehicle in motion moving about 45 MPH approached red light vehicle started making loud tick noise when to start to slow down and break pedal was solid not able to slow the vehicle down. Panicked, 3 children in my car in fear for their safety. Was able to put both feet and press as hard as I could to attempt to stop the car. Car thankfully came to a stop and was able to pull over exit the car and have towed to dealership. Dealership inspected vehicle and decided that the vacuum pump had locked up and the case and gear had broken apart. Replaced part and everything was working. Second incident, noticed fluid on driveway, took car to dealership and they stated the vacuum pump was leaking, changed gasket. Third incident, driving car down the highway, vehicle lost speed (jumped) and check engine light came on. Exited highway and car shut off and breaks were again solid had to again use two feet to press as hard as I could in order to not blow through an intersection. Was able to get off road call tow truck and tow to closest shop. They inspected vehicle and found the vacuum pump locked up again and broken pieces where sent into the engine and destroyed the cam shaft.

- Clayton, NC, USA

As I was driving in a 45 MPH two-lane road, the car in front of me wanted to turn left and when I stepped on the brake pedal, it was stiff. The car wouldn't slow down. So, I quickly stepped on the parking brake which helped and possibly saved my life and the life/lives of those I could have hit. One can only imagine the fear I had. The check engine light came on right after. When tested it reported P0556 - Brake Pressure Sensor; something that has to do with the Brake Booster Vacuum Pump. When I talked to a mechanic, he recommended I report this issue here because this should not happen.

- Raleigh, NC, USA

Component: Vacuum pump, booster which caused engine damage (cam shaft) Safety: Unable to stop which could cause a collision Confirmation: Chevrolet dealer confirmed the booster caused the vacuum pump to fail which also caused engine damage Inspection: GEICO is sending an inspector and Chevrolet also confirmed damage Warning Lights: No warning lights,

- Upper Marlboro, MD, USA

Vehicle check engine light came on. Then a warning saying reduced engine power came on. I then lost most of my accelerator and slowed me down from 65 mph to about 30 right in the middle of the highway. As I was pulling off to the emergency shoulder my brakes became very stiff and started pulsating rapidly. I could hardly press the pedal enough to make the vehicle come to a stop safely.

- Henrico, VA, USA

Breaks suddenly failed I have researched this problem and it is a ongoing problem with the vacuum pump and Chevy knows this

- Charleston , SC, USA

Start and stop function at a stop failed car turns off but when releasing the brakes car doesn't turn back on everything is intermittent and can't reproduce check engine code when car goes in to fix the problem when I put it on L gear so the start and stop function won't try to engage but it doesn't sense its on L gear also back up camera not longer work as well as a.c blower or heater doesn't kick on a lot of electrical problems like if the brain is slowly dropping everything it knows and forgetting how to function also engine reduce and abs light as well as a lot of oil cusumption with no leaks a lot of complaints on these cars and you tube videos why hasn't this been recalled please investigate in an honest investigation please.

- Thousand Palms, CA, USA

While pulling into a parking lot, the brake pedal failed to push down, making me to have to exert force on the brake pedal to stop the car. I had been hearing a "grinding" sound but thought it was from the brake pads needing to be replaced and this was incident was from the calipers being over extended. After replacing the brake pads with the new ones (the old ones were only half the size of the new ones and did not need replacing) the brake pedal still did not push easily. I took the vehicle to the repair shop I always use and they affirmed there was a problem and gave the price for the parts (908.37 for the brake vacuum pump and $107.98 for the Brake Fluid Exchange with ABS). There is visible damage to the end of the camshaft from the pump freezing and being torn apart by the camshaft as a result. The total cost of the repairs was $3409.96, which was unexpected. I was quoted $1134 and change originally for parts and labor at the beginning of the problem being addressed.

- Port Richey, FL, USA