2018 Chevrolet Equinox Engine Problems

My granddaughter was driving the vehicle and experienced a catastrophic engine failure while driving down the road. Warning messages and audible sounds began and said to turn off the vehicle immediately. The brakes completely stopped working at that point. She pulled over immediately and called to ask what she should do. She was approximately 1/2 mile from home and she drove approximately 10mph to her driveway, pumping the brakes helped get the vehicle to her driveway. The vehicle was then towed to the dealership.

NHTSA ID

11754341

Incident

Mar 4, 2026

While turning right at a red light my vehicle started making knocking noises, loss of acceleration then the ECM (limp mode) and ESC code happened. Protecting the vehicle from damage due to transmission fluid loss. Looked under the car and Transmission fluid was pouring out between the transmission and drive shaft. Car will no longer start due to codes being present from the computer shutting the car down during fluid loss.

NHTSA ID

11752207

Incident

Jul 2, 2025

My 2018 Equinox is failing California Smog due to an incorrect CVN error code, which is covered under Emissions Recall N212345540 or N202298780 and the dealership is refusing to reflash it and asking me to pay for a full diagnostics when there is no check engine light on. I also had a full diagnostic run on June 2nd $289.99 which confirmed this code and referred me to the BAR Referee who also confirmed this is causing the issue.

NHTSA ID

11745632

Incident

Jun 2, 2026

The car cut off on the street with no warning. Once I crank the car back up and pulled over, it was leaking fuel and coolant with no warning lights on the dash boatd

NHTSA ID

11741675

Incident

May 23, 2026

Early this year I traveled to Mobile AL. While I was driving my car made this sound and it lost acceleration but no warning light appeared on my dashboard. My car eventually lost power and I had to get a tow. I went to a repair shop and they explained to me that it was the turbo that’s why I lost acceleration they said a lot of equinox with turbos are having this problem but it only goes out around 100000 mile but I only had 67000+ miles on my car at the time. The mechanic explain it shouldn’t have gone out so soon as it did. Also the vehicle makes a sudden jerk or jolt while driving this maybe an engine or transmission problem without any warning sign signaling there’s a problem with the vehicle. I’ve researched this and learned that this model vehicle has transmission problem while driving

NHTSA ID

11741187

Incident

Jan 10, 2026

While driving over the expressway, the engine light came on the vehicle started revving extremely hard but was decreasing speed to less than 20 miles per hour I had to cut on the hazards and coast into s safety lane where I could get off the expressway. I then shifted the car into park cut off the vehicle and cut it back on, the car started up but make loud noises from the engine I was able to coast my way home and park the vehicle. When I checked the app for issues it started engine and transmission service immediately. I looked up the issues on website and was given link to power train recall but it says my Vin is not added in recall....I have to look into getting my transmission serviced

NHTSA ID

11739670

Incident

May 23, 2026

Loss of breaks lead to calling mechanic. After diagnosis, vacuum pump had broken teeth. Metal discovered in engine oil.

NHTSA ID

11738940

Incident

May 16, 2026

The contact owns a 2018 Chevrolet Equinox. The contact stated that while taking the vehicle for a SMOG emissions inspection, the vehicle failed the inspection due to an engine-related failure. The vehicle was taken to the dealer, where it was diagnosed that the Engine Control Module (ECM) required recalibration. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for further assistance. The failure mileage was approximately 43,000.

NHTSA ID

11738565

Incident

May 18, 2026

Mileage

43,000 mi

Travelling on a highway with 70 MPH posted speed limit, the vehicle dashboard signaled the check engine light and a variety of warnings that "power reduction measure" was enabled and to "service brake assist." At the next available exit, I was able to exit from the highway and go to a gas station, where upon pulling next to a pump the brake pedal became extremely hard and nonresponsive, resulting in poor braking, nearly striking the car in front of me, even at a very low speed. Upon a quick internet search, it appeared that other vehicles were having the same issue, and it was recommended not to drive, as well as information referring to an ongoing class action lawsuit. A tow was called and brought to the nearest Chevrolet service center (Nels Gunderson Chevrolet), where they confirmed the brake booster vacuum pump failed (exploded) and sent shrapnel into the camshaft, noting that both would need to be replaced, which is the exact same repair that other vehicles similar to this one are having or have had.

NHTSA ID

11737960

Incident

May 10, 2026

The contact owns a 2018 Chevrolet Equinox. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to a local independent mechanic, where it was diagnosed as needing transmission fluid. The vehicle was repaired. In addition, the contact stated that the failure reoccurred, and the vehicle was taken to another independent mechanic, where the vehicle was diagnosed with missing bolts on the start-stop accumulator impact. The local dealer was not contacted. The vehicle was not diagnosed or repaired. Upon further investigation, the contact related the failure to NHTSA Campaign:20V668000 (Power Train); however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 160,000.

NHTSA ID

11736244

Incident

Apr 30, 2026

Mileage

160,000 mi

The contact owns a 2018 Chevrolet Equinox. The contact stated that while driving approximately 80 MPH, the vehicle unexpectedly decelerated. The contact pulled over to the closest exit and pulled over to the side of the road. The vehicle was turned off and then restarted; however, while attempting to drive forward or reverse, the vehicle failed to move. The contact inspected the vehicle. While inspecting the vehicle, the contact became aware that there was fuel leaking from the side of the engine near the high-pressure fuel pump underneath the vehicle. The check engine warning light was illuminated. The vehicle was towed to a certified mechanic, who diagnosed that the transmission intake failed, causing the transmission to fail. The transmission was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 168,053.

NHTSA ID

11734222

Incident

Apr 18, 2026

Mileage

168,053 mi

While driving the brake pedal suddenly became hard to push making the car unable to slow down. Put car in neutral and managed to get off street into parking lot and coast to a stop. Car would no longer start. Towed to dealership for assessment. Reports of broken vacuum pump pieces and related metal debris found in engine. Dealership recommended engine replacement. Notified GM, they provided a case number and helped discount the full cost of engine replacement down to $6,225.00 which we paid out of pocket (or risk losing the full value of our equity in the vehicle against a replacement).

NHTSA ID

11727099

Incident

Sep 30, 2025

Brake system has failed. “Brake Assist Service” has popped up on screen. Taken to two separate facilities who said this is a KNOWN problem with this vehicle make and model.

NHTSA ID

11722704

Incident

Mar 6, 2026

Got word from the mechanic at the dealership that the cam shaft is leaking oil as well as the fuel injectors retainers are out and need to be sealed as they are also leaking. the engine went into safe mode to prevent any engine fires.

NHTSA ID

11717648

Incident

Feb 2, 2026

Vehicle is leaking coolant excessively. Faulty 55513550 water pump (ACDelco/GM OE) commonly causes engine overheating, coolant leaks (often from the weep hole), and unusual noise (squeaking/rumbling) in 1.6L diesel engines for Chevrolet Cruze, Equinox, and GMC Terrain. It may cause cabin heating issues and trigger engine codes. Major Problem #2: Electrical Described by Tony Dubois at Midas (Cinco Ranch location) - Electrical pulse are being received through the wiring causing lights to go on and off. No other manufacturer or repair shop can fix this issue because of the inability to access the coding. This is an Dealership software issue.

NHTSA ID

11716625

Incident

Jan 31, 2026

My car has a slow crank and when I am driving down the road it cuts off completely and does not want to crank. I have a signal on my car that says reduced speed and the speed is cut down and drags . My car also smells like gas and there is a leak coming from the vehicle it drains really bad . my brakes goes out every few months . My Car radio goes out like there is a shortage. Its horrible

NHTSA ID

11713676

Incident

Jan 1, 2026

The contact owns a 2018 Chevrolet Equinox. The contact stated that there was an abnormal odor of fuel coming from the vehicle. The contact stated that the brake pads were wearing abnormally quickly. The message speed reduced was displayed. The engine warning light was illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 150,000.

NHTSA ID

11713323

Incident

Jan 24, 2026

Mileage

150,000 mi

Engine power low

NHTSA ID

11712300

Incident

Dec 10, 2025

My vehicle suddenly began giving a message engine power reduced. This happened on a highway that required with a maximum speed of 65 mph. My vehicle reduced speed to under 40mph which may be beneath the minimum speed limit. I took the vehicle to a chevvy dealer who said my transmission was slipping. I took it to AAMCO spent 6000 on repairs only to have the engine power reduced error continue to appear. AAMCO claims they have made all repairs yet the light is still on and my vehicle continues to lose engine power on fast highways (the intended interstate). I called chevy because I had seen similar issues in older models and they refused to accept me rendition of events because my vehicle was not serviced by chevy. I tried to upload a photo of the error message The upload is not working.

NHTSA ID

11711994

Incident

Aug 30, 2025

Vehicle displayed reduced engine power, check engine light, and service brake assist all at the same time. Brake pedal wouldn't move leaving me without brakes. Coasted to stop and shut off car. Brake did not release and now engine won't start. Informed brake vacuum booster pump is problem and ruined motor now.

NHTSA ID

11702827

Incident

Dec 2, 2025

The contact owns a 2018 Chevrolet Equinox. The contact stated that while depressing the accelerator pedal, the turbo charger failed to operate as designed, and the vehicle failed to accelerate as intended. The contact stated that excessive pressure was needed to depress the accelerator pedal. The message “Engine Power Reduced” was displayed due to a low coolant level. Additionally, the contact was adding 2-quarts of engine oil to the vehicle weekly. The contact stated there was oil on the ground underneath the vehicle. While checking the oil level, the contact saw smoke coming from the exhaust. The check engine light was illuminated. The contact was made aware of the Special Coverage Program, NHTSA ID Number: 10171426 (Engine and Engine Cooling, Air Bags, Service Brakes, Hydraulic); however, the year vehicle was not included. The vehicle was taken to an independent mechanic who replaced the oil line connected to the turbo charger; however, the oil leak persisted. The manufacturer was informed of the failure and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was unknown.

NHTSA ID

11685025

Incident

Sep 4, 2022

My 2018 equinox was running perfectly. Then several warning lights popped up on the dash. I pulled into my daughter's school and didn't have power breaks. Even though brake fluid was full. It wouldn't start back up. A mechanic shop looked at the car and said they thought the timing was off. But couldn't guarantee it. Another mechanic looked at it a few days later and said I needed a new power break pump that the had broken at the camshaft connect. He said the car would need to rebuild the motor or buy a used motor because of the damage. I have heard of several people who have had the same exact issue with the chevy 1.5 turbo motor in many chevy vehicles. There should be a recall as there is never a warning that the vacuum break pump is getting ready to go bad and cause severe engine damage.

NHTSA ID

11683356

Incident

Nov 7, 2024

The contact owns a 2018 Chevrolet Equinox. The contact stated while driving at undisclosed speeds, the brake pedal seized while depressing the brake pedal. The check engine warning light was illuminated. The contact was able to pull over to the side of the road and the vehicle eventually came to a stop. The vehicle was towed to the residence. The contact inspected the vehicle and found that a gasket had detached and was missing, and there were plastic pieces inside the engine, and there was oil intrusion into other parts of the vehicle and engine. The vehicle was not diagnosed or repaired. The vehicle was parked at the residence and had not been driven since the failure. The manufacturer was notified of the failure but denied assistance in covering the cost of the repair. The failure mileage was 200,000.

NHTSA ID

11660523

Incident

May 12, 2025

Mileage

200,000 mi

2018 Chevrolet Equinox Premier. The engine connecting rod to the #1 piston separated, causing the engine to stop while the vehicle was in motion. The only warning light at the time was the tire pressure monitor system. The incident had no warning. My husband was driving the vehicle. Initially he thought the car blew a tire by the noise, but then the engine stopped/stalled while I was driving. He was able to get to a side road. The vehicle would not start. He smelled burnt rubber and then thought he broke a belt. He pushed the On-star button for roadside assistance. The car was towed to Ferman Chevolet, Adamoo Dr., Brandon, Florida where they inserted a camera scope and confirmed the rod separation. I do not have paperwork except to show they gave me $2500 towards a trade-in. Over the phone they said it would be $1800 to take apart the engine to confirm the separation. The mechanic suspected the engine was scarred as a result. It would cost $12,000 to replace it, or they could talk to the sales side and see if they can let us trade it in on a different car. We traded the vehicle in. I just saw news of another GM recall affecting the 6.2L V8 and thought it odd that the same thing happened to my vehicle, which is not included in the recall. The engine stall caused my husband to stall in the middle of the traffic lane on a side street. Had he not gotten to the side street in time, he would have blocked a traffic lane on a very busy road which could have resulted in a major accident with injuries.

NHTSA ID

11658752

Incident

Apr 9, 2025

This rare equinox has a Turbocharge issue that causes rapid engine power loss, and melting under the manifold and around the fuel injector pipes. The recent recalls do not include this GM made diesel equinox due to its rarity, and small consumer ownership of 506,775 units sold in its lifetime. However, GM has been just as negligent with this diesel 1.6L, as with the other major model lineup. Diesel particulate sensor goes bad every year around installation anniversary (previous recall). Stated every year in purchase anniversary month 10/2021, 10/2022

NHTSA ID

11654962

Incident

Feb 14, 2025