2020 Chevrolet Equinox

While operating my vehicle, I experienced a sudden, catastrophic failure of the power-assisted braking system. The brake pedal completely lost hydraulic pressure, plunging effortlessly all the way to the floorboard. The vehicle failed to respond to normal foot-pedal application. Emergency stopping power was only achieved by pushing the pedal into the absolute floorboard, which engaged an emergency mechanical override and forced the Anti-lock Braking System (ABS) pump into a violent stutter/pulsation to halt the vehicle. No dashboard warning lights, diagnostic trouble codes (DTCs), or fluid level sensors illuminated prior to or during the braking failure. A certified automotive repair facility diagnosed the root cause as a total internal seizure and mechanical failure of the engine-driven brake booster vacuum pump. Because the vacuum pump is driven directly by the engine, its sudden lockup sheared and severely damaged the drive slots on the exhaust camshaft, necessitating an intensive engine teardown, camshaft replacement, and secondary component repair totaling $2,390. This design poses an extreme, life-threatening safety risk. The total loss of braking assist occurs without warning, and the mechanical failure simultaneously compromises internal engine timing components while moving at speed.

While driving, my 2020 Chevrolet Equinox suddenly lost power and shut off without warning while I was pulling into traffic. The vehicle would buzz not crank afterward but would not restart. This created a safety hazard because the unexpected engine shutdown occurred while the vehicle was in motion. This is the second brake vacuum pump failure I have experienced with this vehicle. In 2022, the brake vacuum pump failed and was found shattered internally. At that time, the engine continued running, and the pump was replaced. During this most recent incident, the brake vacuum pump failed again, and the internal end of the pump broke apart. I replaced the vacuum pump and removed the broken pieces I could access, but the vehicle remains in a crank/no-start condition. The vehicle has not yet been inspected by a dealership or independent repair facility. However, after seeing the shattered pump components, a couple of mechanics I know expressed concern that the broken pieces may have affected the engine timing. That has not been confirmed. The failed pump and replacement parts are available for inspection.

As I was coming to a stop at light my brakes became very difficult to push the pedal down to stop. It took everything in me to get the vehicle to stop before entering the intersection and oncoming traffic. I was able to get the vehicle parked safely in a nearby parking lot but then the engine wouldn't start it just kept trying to turn over. The brake assist error popped up, and then the check engine light came on. I was able to get it started again about 20 minutes later, all the same warnings and lights. I white knuckled the drive back to my house... Once I got home the engine was smoking, smelled like it was burning, and oil was spilling out all over the place underneath, impossible to see where a leak was as it was coming from the entire engine. There was ZERO warning with the vehicle, no issues up to this point, and suddenly the equinox is now useless in my driveway unable to start with oil still leaking in multiple spots. An oil pan under the main leaking area, but there are still multiple areas of oil spilling even a week later. Oddly enough my onstar report for the month came to email a few days later reporting perfect engine health and zero issues - even thought the vehicle can't start now.

The vacuum pump failed and my brakes went out pedal became extremely hard to push. I was driving on the highway at the time and was lucky I had a shoulder to slow down on and finally stop. I took the car to my usually mechanic who confirmed the vacuum pump failure but referred me to the Chevy dealer because this is a known issue. The dealer confirmed the pump had blown apart( their words to me) and that there are most likely debris now in the engine. No warning lights or alerts of any kind came on. Total suprise.

December 2025 I was at a complete stop and the car clunked and the brake pedal got hard hard to push and then a couple months later a brake sensor light came on and when I plugged the code reader into it, it said give me a brake sensor code, and then it started slamming on the brakes all by itself when I went to takeoff hard like give you whiplash hard and it didn’t just do it once it did it a few times and then it wouldn’t go into reverse and then it wouldn’t go in neutral, and then it started smoking. My safety was affected by it, slamming on the brakes that could make someone hit me. It could hurt my back and neck. Yes, I have proof. Yes, I notified the dealer. Yes the vehicle has been inspected and I got an estimate by two different Car Lot the one I bought it from Ken valor motors, and Matt Mazzoni’s I have. Plus I have diagnose diagnostics printouts from OnStar and this is a 2020 vehicle. It should not be having these problems and now I’m stuck paying for a vehicle that I can’t even drive.!!

Brake vacuum, pump failed while driving which made the brakes not work. I had it towed to a dealer and they found that the pump was internally damaged. Pump was then replaced. There was no warning this was about to happen and it happened suddenly. One moment the car had brakes and the next there was no braking. A very dangerous situation and we were lucky to not have a major accident.

Brake vacuum pump failed at 112k miles while doing 60 on the highway with no warning or way to stop. Very dangerous. Service brake assist light only come on after the fact of brake pump failure. Shrapnel from the failed part was sent into the engine block that had to be professionally cleaned out. This happened again 4 months later when I had to replace the brake vacuum pump AGAIN. I almost wrecked and lost my life then as well since again, it happened out of nowhere while driving no warnings. Brake assist light only came on after. This is DEADLY and should be recalled and rectified by GM promptly before someone is killed.

I was driving at the speed about 30~ miles/per hour on the city road, as I was slowing down to turn into the Penera Bread where I plan to, and I pressure the break paddle, the break paddle was stocked, it cannot pressed down. It was extremely dangerous situation, I cannot stop the vehicle, and it was very scary. I finally switch the driving to 'P" to stop the vehicle, and route the vehicle to curb to force hard stop. This is extremely risky situation. My understanding is model year 2020 - 20xx Equinox has reported this problem by many consumers. Vehicle brake stocked while driving, I hope there is no injury or death occurs. This is extremely dangerous. My seatbelt pressed really hard on me, my chest hurts from this sudden hard stop, and I am so scared. A week after, I still cannot resume the driving due to the impact of the situation.