2020 Chevrolet Equinox: sudden loss of power

Filed Nov 5, 2026 · Brakes, Electrical · IN

2020 Chevrolet Equinox, approximately 84,453 miles. On XXX, the vehicle experienced a catastrophic braking/mechanical failure. The brake system lost power assist. Following physical inspection, the insurance adjuster documented that an internal brake booster/vacuum-related failure caused loss of brakes and excessive vacuum on the engine, resulting in internal engine failure requiring engine replacement. I subsequently learned of pending federal litigation, [XXX] et al. v. General Motors LLC, Case No. XXX concerning an alleged brake vacuum-pump system defect in 2018-2022 Chevrolet Equinox vehicles. I am reporting my vehicle because the failure involved loss of braking assistance and catastrophic engine damage and appears potentially consistent with the failure pattern alleged for these vehicles. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 14, 2026 · Engine · OH

"Brake vacuum pump seized and shattered, sending metal debris into engine via camshaft. Vehicle lost power and would not restart – towed to dealer. Dealer found metal debris in oil fill (photo available) and quoted $2,101 for camshaft/vacuum pump and $9,480 for engine assembly – total $12,493.83. This is identical failure to class action Thieme et al v. GM for 2018-2022 Equinox 1.5L. Safety risk – loss of power brake assist and sudden stall. RO 449922 Dave White Chevrolet Sylvania OH since 10/2/26. Known defect not under recall."

Filed Sep 14, 2026 · Engine · CO

Vehicle began sputtering suddenly while driving 40mph. "Reduced Engine Power" warning appeared on dash. While trying to limp it home, the vehicle died in the middle of a turning lane. Pushed vehicle to the side of the road and had it towed to a shop. Their notes attached below. Technician Notes: Customer concern verified with DTCs P0014 (Exhaust Camshaft Position System Performance) and P0017 (Exhaust Camshaft Position Not Plausible). Upon removing the exhaust cam position sensor, metal buildup was found. The vacuum pump failed, breaking the keyed driveshaft on the cam and causing the metal buildup. Recommendation: Replace the vacuum pump and exhaust camshaft with timing chains, or consider replacing the engine. Same catastrophic failure as many others have reported due to the vacuum pump seizing up. Metal shavings throughout motor now, likely ruining the whole motor.

Filed Jul 24, 2026 · Brakes, Engine · NM

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.

Filed Jul 2, 2026 · Brakes, Engine · 111,000 miles · OH

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.

Filed Jul 2, 2026 · Engine · MN

The turbocharger are bad on the 1.5 L vehicles. My current one , I had replaced already and my previous one had it too. Reduced engine power and should be recalled. I want to be reimbursed for the service and part replacement. 976.00 for the turbocharger and labor costs of 400.00. 3 1/2 hours of labor costs and the diagnostic test my nirth country GM in Hibbing. Should be recalled for all of these vehicles. 218‑290‑5027 Craig Johnson

Filed May 30, 2026 · Brakes, Engine · IN

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.

Filed May 27, 2026 · Engine · NJ

My engine started running rough and, as a result of a repeating PO301 code, the car was towed to Lester Glenn of Toms River. Their diagnostic scan report (codes DTC PO301 & DTC PO303) found the engine assembly has scored cylinder walls due to failed piston rings. The entire engine had to be replaced. The odometer reading was 19,000 miles. Piston rings are designed to last 150,000 plus miles. For them to be worn enough to score a cylinder wall at 19,000 miles is a textbook definition of a manufacturing defect. Piston failure represents a serious safety defect as it could have caused a total loss of power at highway speeds. This was a safety-related manufacturing flaw, and not a maintenance issue. GM refused to pay for the repair bill in full.

Filed May 12, 2026 · Brakes, Steering · KS

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)

Filed Dec 8, 2025 · Engine · 130,000 miles · NC

The contact owns a 2020 Chevrolet Equinox. The contact stated that while driving at 30 MPH and depressing the accelerator pedal, the vehicle lost power. The check engine warning light was illuminated. Neither an independent mechanic nor the dealer was contacted. The contact waited thirty minutes, and the vehicle started to operate as intended. The contact stated that the failure had occurred on several different occasions. The vehicle was not taken to an independent mechanic or dealer to be diagnosed. The contact stated that the failure had occurred on several occasions. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 130,000.

Filed Nov 10, 2025 · Engine · 103,000 miles · MI

The contact owns a 2020 Chevrolet Equinox. The contact stated that while driving at an undisclosed speed, the vehicle failed to accelerate while depressing the accelerator pedal. The message “Reduced Engine Power” was displayed. The vehicle did not require a restart to resume operation. The vehicle was taken to the dealer, where it was diagnosed, and it was determined that the wastegate actuator had failed and needed to be replaced. The contact was informed that the coolant inside the actuator had frozen due to the local low temperatures. The dealer advised that precautions were needed to prevent future coolant-related failures. The vehicle was not repaired. The manufacturer was made aware of the failure and referred the contact to the federal safety agency Hotline for assistance. The approximate failure mileage was 103,000.

Filed Jun 9, 2025 · Brakes, Engine · OH

Vehicle brakes became hard and failed to stop, check engine light came on and warning saying reduced engine power. Vacuum pump seized and broke off in the crankshaft. After vacuum pump replacement vehicle failed to start multiple times. Vehicle started and had rough idle and stalled multiple times. Currently awaiting dealer inspection.