2018 Chevrolet Equinox: sudden loss of power

Filed Sep 23, 2026 · Transmission · PA

Complete and sudden failure of Transmission involving the clutches (clutches are burned up inside the transmission). No warning or dash lights. Confirmed by mechanic and the solution is transmission replacement ($10,000). Car would not accelerate and began losing power on highway. After I exited the highway, the car would not engage gears and stopped accelerating resulting in having to push it out of the roadway and get it towed to my mechanic for diagnostic.

Filed Aug 19, 2026 · Engine · WI

While driving, the vehicle experienced a sudden, catastrophic loss of engine power accompanied by severe engine shaking, reduced acceleration, and a lit Check Engine / ESC light. The vehicle was towed to a technician who diagnosed a complete dead misfire in Cylinder 4. Upon detailed inspection, the ground electrode/tip of the spark plug had broken off inside the combustion chamber while the engine was running. The free-floating metal fragment severely gouged the piston crown and scored the cylinder wall, resulting in a total loss of compression and catastrophic engine failure at just under 51,000 miles. This unexpected engine failure causes an immediate and dangerous loss of motive power while operating in traffic, creating a severe crash hazard for passengers and surrounding motorists. This issue appears to stem from a known component defect (GM Technical Bulletins PIP5657C & 21-NA-255) related to premature spark plug failure and low-speed pre-ignition (LSPI) in the 1.5L turbo engine.

Filed May 31, 2026 · Engine · AL

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

Filed Apr 24, 2026 · Fuel system · 120,000 miles · TX

The contact owns a 2018 Chevrolet Equinox. The contact stated that the engine Auto START/STOP system intermittently failed to restart the vehicle while at a complete stop, requiring the driver to shift to park(P) to manually restart the vehicle. The contact stated that while driving at various speeds, there was an abnormally strong fuel odor entering the vehicle from the A/C vents. The message "Reduced Engine Power" was displayed, and the vehicle went into LIMP Mode and failed to exceed 10-15 MPH. The vehicle was taken to an independent mechanic, where it was diagnosed, and the failure was associated with GM Customer Satisfaction Program: N242489010 (Possible Leak at Fuel Injector Rail Assembly). The manufacturer was notified of the failure and informed the contact that the vehicle was not covered under the program. The vehicle was not repaired. The failure mileage was approximately 120,000.

Filed Mar 18, 2026 · Brakes · IL

Losing all power to the brakes.

Filed Jan 20, 2026 · Engine · NY

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.

Filed Jan 5, 2026 · Fuel system · TX · fire · 2 injuries

My wife and I were driving to Galveston on I-45 and were driving through La Marque when our car suddenly lost power. I started moving over to the outside lane and went to turn on the emergency lights. I realized the lights were already on. We heard a thump and thought that the serpentine belt had broken and that the engine would overheat, followed up by white smoke coming from the dash vents. My wife opened her window and leaned out the window while I tried to control the SUV without power. A truck pulled next to us and the passenger screamed that our car was on fire. I stepped on the brakes, but my foot went to the floor without effect. I hit the button for the emergency parking brake, but it didn't stop the car. I let the car slow down and then black smoke was coming from the vents. We were choking from breathing the smoke and I tried to open my window, but all electrical systems had quit working. The car finally slowed enough for me to shove the gear shift into park. My wife jumped out of the car and fell to the pavement, also hitting the concrete barrier on the side of the highway. My seat belt was stuck and I kept pushing the button and reached for my pocket knife to cut the belt when it released. At this point, flames were coming from the vents when I reached for the door handle and open the door. I fell out of the car onto the highway, rolling away. I was finally able to get up and saw several vehicles stopped behind us, but some were still driving through. I got away from the car and found my wife who was being helped by another man who stopped ahead of us. The car was on fire, mostly from the back, heavily in the left rear where the gas tank is. The car was completely burned and an unknown retired firefighter said all of the signs point to a defective fuel pump.

Filed Dec 3, 2025 · Brakes, Engine · AL

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.

Filed Oct 8, 2025 · Transmission · FL

I’ve heard about some recalls and Technical Service Bulletins related to the transmission, especially the start-stop accumulator bolts possibly missing and some transmission lubrication concerns. I checked my VIN on the federal safety agency website, and it shows no open recalls. However, I want to confirm: Whether my vehicle was part of any recall related to the transmission or start-stop accumulator bolts. If the recall was completed or if any transmission-related TSBs apply. Whether there are any service campaigns or software updates for the transmission control module that I should be aware of. Start-stop accumulator bolt missing leading to fluid leaks and possible failure, Missing transmission cup plugs causing lubrication issues, Valve body spacer plate replacement and transmission control module reprogramming. I am currently experiencing significant transmission issues including, symptoms like: rough shifting, slipping, hesitation, noises, fluid leaks, loss of power, which are severely affecting the vehicle’s drivability and safety. This vehicle only has 107K miles which only go over 7K from warranty. I am concerned that my vehicle may be affected by one or more of these issues — even if the recall was marked as closed or VIN was excluded in error. Given the volume of known transmission complaints for this model year and my relatively low mileage, I strongly believe this could be part of a broader safety defect that deserves further investigation. Please review this issue for potential inclusion in an investigation or expanded recall campaign. These transmission issues are not only costly but potentially dangerous, especially if they result in sudden loss of propulsion. This transmission issue is seriously impacting my vehicle’s safety and reliability. This matter is urgent due to the impact on vehicle safety and reliability.

Filed Jun 28, 2025 · Acceleration, Electrical · OH

1st Incident: Code P2138 - Accelerator Pedal Sensor In March of 2024 - driving on highway dashboard warning lights illuminated(traction control & reduced engine power) vehicle went into limp mode putting my family & I in danger due to traffic volume and speed on highway. Had to drive on berm at speeds below 25mph to exit freeway safely. Removed battery cable to reset computer. Taken to Serra Bartlett Chevrolet in Memphis- couldn't get vehicle to repeat error. 2nd Incident: Code - P2138 June 2024 - while traveling on highway same dashboard warning signals & car went into limp mode. Had to maneuver to the berm to exit the highway safely once again putting my family in danger at speeds below 25 mph exit. Vehicle was towed to Serpentini Chevrolet the Accelerator Pedal Position Sensor was replaced under the extended warranty. 3rd Incident - Code P2138 June 2025- while traveling on highway, same dashboard warning signals & car went into limp mode again. Had to maneuver to the berm to exit the highway putting my family in danger again at speeds below 25mph. Removed the battery cable to reset computer - was unsuccessful. Contacted Jeff Schmitt Chevrolet - had to drive the vehicle over 35 miles on the berm of the highway at speeds lower than 25 mph to get to dealership. Upon arriving they ran the codes and annotated the P2138 code. The next morning when the Technician checked the vehicle the computer had reset itself and everything was checking out fine, the code was still in the vehicle history . The sensor was under warranty and we inquired about replacement because the code showed failure, the dealership stated GM would not replace the part because it tested good. But I could pay to have it replaced if I paid for it. GM Service Bulletin No:074-06-04-019F clearly states they are aware of issues with this vehicle, yet I cannot get it repaired to my satisfaction It puts myself and my family under extreme danger while driving this vehicle on the freeway.

Filed Apr 16, 2025 · Engine, Fuel system · GA · fire

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

Filed Nov 22, 2024 · Brakes, Engine · 120,000 miles · OH

The contact owns a 2018 Chevrolet Equinox. The contact stated while driving at an undisclosed speed, the "Reduced Engine Power" message flashed on the instrument panel with an audible beep coming from the vehicle. The vehicle started to lose power and the contact pulled over to the side of the road. Due to the failure, the vehicle was towed to an independent mechanic where it was discovered that the vacuum pump had damaged the cam shaft, causing the cam shaft to explode, releasing particles into the engine long block. Upon investigation, the contact discovered the federal safety agency Campaign Number: 19V645000 (Service Brakes, Hydraulics) which was then linked to the failure. The manufacturer was notified of the failure and the contact was informed that the vehicle was not under recall. The vehicle was not repaired. The failure mileage was approximately 120,000.