2020 Chevrolet Equinox Brakes Problems

The contact owns a 2020 Chevrolet Equinox. The contact stated that while driving 80 MPH, the message “Service Brake Assist” warning light illuminated twice. The contact stated that while attempting to depress the brake pedal, the vehicle failed to respond as needed, causing the contact to engage the parking brake and manually shift the gear shifter to a lower gear to get the vehicle to come to a complete stop. A dealer was contacted. The contact stated that the check engine warning light was illuminated. The contact stated that the failure had occurred twice. The vehicle was taken to the dealer, where it was diagnosed and determined that the brake booster pump needed to be replaced. The brake booster pump was replaced, and the vehicle was repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 94,000.

NHTSA ID

11753062

Incident

Jul 26, 2026

Mileage

94,000 mi

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.

NHTSA ID

11752556

Incident

Jul 20, 2026

I was pulling into a parking lot off the state Thruway with the brake system failure no brakes, hard pedal, and the car would not stop

NHTSA ID

11751405

Incident

Jul 19, 2026

Brakes went stiff and hard to push no warning light. I was driving on the interstate with my daughter. Was stuck out of town with no breaks.

NHTSA ID

11749665

Incident

Jul 9, 2026

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.

NHTSA ID

11748127

Incident

Jun 22, 2026

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.

NHTSA ID

11747928

Incident

Jun 26, 2026

The contact owns a 2020 Chevrolet Equinox. The contact stated that while driving approximately 5 MPH and approaching a stop sign, the brake pedal was depressed and there was a thumping sound coming from the brake pedal, with the message “Service Brake Assist” was displayed. The vehicle was taken to the residence and parked. The contact stated that the next day while driving approximately 63 MPH, the message "Reduced Engine Power" was displayed. The contact exited the highway, and while attempting to depress the brake pedal, the pedal was firm, and the vehicle failed to slow as intended. The contact continued to depress the brake pedal with force, and the check engine warning light was illuminated. The vehicle slowed down eventually. The vehicle was taken to an Auto Parts Store and a handheld diagnostic machine to diagnose the vehicle. The contact stated that the vehicle was turned off and failed to restart. The vehicle was restarted after three attempts. The vehicle was taken to the residence and the following day, the vehicle was towed to an independent mechanic where it was diagnosed and determined that the vacuum pump, camshaft, and timing belt needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 111,000.

NHTSA ID

11747893

Incident

Jun 26, 2026

Mileage

111,000 mi

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.!!

NHTSA ID

11747321

Incident

Dec 29, 2025

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.

NHTSA ID

11744943

Incident

Jun 15, 2026

The contact owns a 2020 Chevrolet Equinox. The contact stated the brake pedal became firm while driving approximately 40-45 MPH. The check engine warning light was illuminated, and the brake assist service message was displayed. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The vehicle was taken to an independent mechanic who determined that the brake housing had shattered inside the engine. The manufacturer was not notified of the failure. The failure mileage was approximately 213,000.

NHTSA ID

11744733

Incident

Jun 11, 2026

Mileage

213,000 mi

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.

NHTSA ID

11743438

Incident

Feb 17, 2026

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.

NHTSA ID

11741435

Incident

May 29, 2026

Multiple occasions of “engine reduced power” and vehicle stalling/jolting/jerking when trying to go over 45 mph. When trying to go to work Monday - on the interstate, it was jerking/jolting when trying to increase any speed and brakes were getting harder to press on, decided to try to reduce speed and get pulled over without the brakes, car was overheating completely. Now seeing multiple people have had this issue with the same car - I’m not sure whether it’s comforting that I’m not the only one or terrifying to know there’s multiple vehicles on the road experiencing this dangerous issue. Seeing a pending lawsuit did not surprise me one bit - I am not happy whatsoever about risking my own life and others on the roadway due to this not being a priority in the first place to correct before selling this vehicle to me, buying it with my hard earned money. Greedy greedy.

NHTSA ID

11741037

Incident

May 25, 2026

While driving, the vehicle experienced an almost total loss of braking capability. The pedal was very hard to press, and when pressing with all my weight, I could slow the vehicle to a stop, but it took a great distance. There was no warning or malfunction indicator until I pulled into a parking lot a few minutes later. At that point, a "Service Brake Assist" message appeared. Had I been in traffic, going faster, or in an area with pedestrian crossings, this could have caused a possibly deadly crash. I searched online and found that there is a vacuum pump that is known to fail on this vehicle, and can cause these symptoms. Upon replacing this vacuum pump, the issue was resolved. I still have the failed vacuum pump.

NHTSA ID

11740098

Incident

May 25, 2026

The contact owns a 2020 Chevrolet Equinox. The contact stated that while driving at approximately 60 MPH, the vehicle's brakes did not depressed, it maintained the same speed the warning indicator stating service brake assist illuminated and then the check engine light illuminated. The emergency brakes were engaged in order to allow the vehicle to slow down. The vehicle was towed to the dealer where it was diagnosed with a vacuum pump for brakes failure. Additionally, metal was in the engine due to the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was

NHTSA ID

11738847

Incident

May 16, 2026

Mileage

95,700 mi

I was driving to work, when I got off the exit I stopped at Sheetz. When I got back in the car my brake pedal was stiff as a rock, and there was oil on the ground. A friend of mine does mechanic work so I called him and he said it sounds like the vacuum pump. I had the car towed to his garage, the tow costed me $400 which was very cheap considering where I was located. When I got it to the garage he confirmed that it was the vacuum pump and we removed several pieces of metal from inside the engine. I now have my car at the Chevy dealership in Chippewa PA. They told me to be $180 a diagnose it, well they just called me a little bit ago and said it's going to be another $900 to take everything apart and to truly diagnose it. I'm finding out now that GM has known about the failing vacuum pumps and they kept producing them anyways. I see there's a class action lawsuit taking place, and I am not very happy. My life was put at risk. And now I'm expected to be stuck paying this huge bill?

NHTSA ID

11738044

Incident

May 11, 2026

I am submitting this on behalf of my daughter, [XXX] . On Friday, May 8, 2026, [XXX] was traveling southbound on Highway 89A approaching [XXX] . Highway 89A is a narrow, winding two-lane canyon road with limited shoulder and significant elevation changes. While still on the canyon road, her 2020 Chevrolet Equinox suddenly lost all power, including power assist to both steering and brakes. A sudden loss of power steering and brake assist on this road presented a serious risk of loss of vehicle control. Fortunately, she was able to get the car stopped off of the roadway. However, she was then unable to place the car into Park or shut off the ignition. Multiple warning lights were illuminated across the instrument cluster. Her roadside assistance plan towed the car to the nearest repair facility, where on Monday, technicians were unable to replicate the issue. A previously stored DTC P3055 was found in the diagnostic system. This code relates to a known and documented issue with Chevrolet Equinox vehicles, for which Chevrolet has issued multiple Technical Service Bulletins, including TSB 21-NA-139, which identifies the Multifunction Power Supply Converter (GM Part #13510484) as the known culprit for this failure mode. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11737381

Incident

May 8, 2026

On Saturday, April 18, 2026, I was driving home from a neurology appointment with my two daughters, including my child with special needs. I intentionally chose not to take the expressway and instead drove a lower-speed route home for safety reasons. While traveling approximately 35 mph, the vehicle suddenly displayed an “Engine Power is Reduced” warning. As I attempted to safely maneuver through traffic and pull over, the brake pedal became extremely stiff and difficult to depress, requiring significant physical force to slow and stop the vehicle. The sudden reduction in braking assist created a serious safety hazard for my family. Had this occurred at highway speeds on the expressway, the outcome could have been catastrophic. A post-incident inspection identified failure of the vacuum pump drive assembly and related timing/variable valve timing (VVT) components. Photographs taken during disassembly document the condition of the timing chain, camshaft, VVT actuator/phaser, vacuum pump assembly, and associated components at the time of repair. Diagnostic records also documented DTC Code P1101 following the incident. The vehicle is currently undergoing further inspection and diagnostic evaluation at a certified Chevrolet dealership to validate CPO warranty coverage and determine the full extent and cause of the failure. Based on the sudden loss of engine performance and reduction in brake assist, I believe this condition represents a significant safety risk to vehicle occupants and the public.

NHTSA ID

11736913

Incident

Apr 18, 2026

The contact owns a 2020 Chevrolet Equinox. The contact stated that while depressing the brake pedal, the vehicle shook and vibrated abnormally. There was no warning light illuminated. The vehicle was taken to a local dealer, but the vehicle was not diagnosed or repaired. The contact researched online and related the failure to NHTSA Campaign Number: 19V704000 (Service Brakes, Hydraulic); however, the VIN was associated with the recall. The contact later replaced the rear brakes independently. The manufacturer was contacted, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was approximately 120,000.

NHTSA ID

11728754

Incident

Jan 18, 2026

Mileage

120,000 mi

the car has a grinding that i am not sure where it is coming from, it maybe coming from the wheel and it also has a battery problem

NHTSA ID

11725348

Incident

Mar 1, 2026

The brake booster vacuum pump, in the words of Meineke, massive failure. The pump locked up and exploded, there are parts of at least under the valve cover. The failure resulted in the ruining of the camshaft, as this pump is controlled by the camshaft. The end of my camshaft looks like a mushroom head. This failure is currently in the investigation part of a class action law suit in which I am adding my name to the hat. My wife was driving at the time and fortunately was not injured during this catastrophic failure with what seems like planned obsolescence. I am also glad the kids weren’t in the car when this happened. We had just crossed 100k miles.

NHTSA ID

11724018

Incident

Mar 12, 2026

The contact owns a 2020 Chevrolet Equinox. The contact stated that the rear tire treads were prematurely worn. A mobile independent mechanic diagnosed the vehicle at the residence, and the mechanic determined that the brakes were dragging. The brakes were replaced. The vehicle was taken to a tire dealer, where the rear tires were replaced. The vehicle was taken to the dealer, where the defective tires were inspected. The service manager associated the failure with NHTSA Campaign Number: 19V704000 (Service Brakes, Hydraulic); however, the VIN was not included. The manufacturer was notified of the failure and informed the contact that no assistance would be provided because the VIN was not included in the recall. The failure mileage was approximately 48,800.

NHTSA ID

11717633

Incident

Jan 29, 2026

Mileage

48,800 mi

My son was driving the car the Service Brake Assist message popped up on the screen, and the brake pedal went stiff. He was coming to a red light and had to swerve to the right to avoid hitting the cars in front of him as he had no brakes at this point. We had the vehicle towed to our house, had the vehicle looked at by our mechanic. The Diagnosis was the brake vacuum pump, part number #12684050 exploded. It is available for inspection, at this point we don't know if the metal pieces have fallen into the engine compartments and we would rather not replace the engine as well. We had contacted the Local Chevy Service dept. who said we can pay $1500.00 to for them to take apart the top of the engine to look for broken pieces, but the best option is to trade it in as soon as possible.

NHTSA ID

11712443

Incident

Jan 17, 2026

The contact owns a 2020 Chevrolet Equinox. The contact stated that while driving approximately 40 MPH, the message "Engine Power Reduced" was suddenly displayed. While attempting to stop, the brake pedal was extremely difficult to depress, and the braking distance was extended. The vehicle was later towed to the local dealer, who diagnosed that the brake vacuum pump had failed and needed to be replaced. The vehicle was not yet repaired. The contact was also informed that metal shavings from the vacuum pump might have entered the engine and that an engine diagnostic test was needed. No further information was available. The manufacturer was notified of the failure. The failure mileage was 55,000.

NHTSA ID

11709875

Incident

Nov 27, 2025

Mileage

55,000 mi

The power brake booster failed suddenly causing the brake petal to become hard. Almost caused an accident as I suddenly lost the ability to brake. There was no warning prior to the failure. After the failure a service warning for brake assist appeared. The vehicle was been inspected by an auto service provider.

NHTSA ID

11700994

Incident

Nov 19, 2025