2018 Chevrolet Equinox Electrical System Problems

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.

The contact owns a 2018 Chevrolet Equinox. The contact stated that the vehicle was taken to three separate Smog Local State Inspections; however, the vehicle failed to communicate with the system. The vehicle was taken to an independent mechanic, where it was diagnosed and it was determined that an unstated module needed to be replaced. The local dealer was contacted; however, Product Emission Recall: N202298780; repair was available. The manufacturer was made aware of the failure. The failure mileage was approximately 75,000.

Odometer Fraud. The contact purchased a 2018 Chevrolet Equinox. The vehicle was a dealer sale. The contact stated that when the vehicle was purchased, the odometer mileage was 60,248. The contact stated that upon applying for extended warranty services, the contact was informed that the odometer was last reported at 155,000. In addition, the contact purchased a Carfax Report, which indicated that in September 2024, the odometer mileage was 144,738. The dealer was made aware of the discrepancy.

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.

My car alerts shift to park when it is already parked and will not shut off. The battery has to be disconnected to turn the car off. It won't start and the dash displays multiple lights park, check engine lights, tire lights and more

The contact owns a 2018 Chevrolet Equinox. The contact stated that while operating the vehicle, the "Service Battery Charger" message was displayed. The vehicle was taken to the local mechanic who replaced the alternator, but the failure persisted. Additionally, while depressing the brake pedal, the pedal felt spongy, and the vehicle failed to immediately stop. The cause of the failure was not yet determined. The failure mileage was approximately 159,000.

Driver side mirror sets itself to non useable position even when auto mirror option is not turned on. Everytime I shift gears the mirror positions itself to an unuasable position making it impossible to safely pull out from a parked position. It happens wether pulling forward or backing out. I can not seem to find any information on how to correct the issue. Other owners have reported the same issue but Chevrolet refuses to address the issue. [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The speedometer does not operate. The gas gauge does not operate. The odometer does not operate and is not tracking miles driven. The blinkers work but no blinker sound occurs. Head lights must be turned on and off manually. The radio must be turned off manually. I ran out of gas on the freeway and Highway Patrol had to close the freeway to remove me safely under quite dangerous conditions. There is no way to monitor my speed. The milage is not being reported to reflect the miles put on the engine.

There's a leak by the rear fuse box. Moisture and water gets on the fuses. My sunroof and sunshade have stopped working. I noticed the Julian date on my sunroof motor falls with in the date range that it needs to be replaced cause it could be a faulty one.

U1345- code for shutter malfunction in front of vehicle. Says water intrusion and has a fix of splicing the wires. Chevy will not cover although it has a fix.

I have a 2018 Chevy Equinox. Was driving one day when the lights for service brake assist, park brake released, and traction control came on. The brake petal went extremely hard and was almost impossible to stop. Had the vaccum pump replaced. Drove for two-three weeks, same lights, brakes go hard off and on, vaccum pipe with sensor changed, only one week later same issues, another vacuum pump put on and oil changed due to metal from faulty pump in oil. We are now 900 dollars in repairs and no fix. Same issues over and over. GM is well aware of the issue with their faulty pumps and system but refuse to fix the issues and continue to put them in the vehicles which will lead to fatalities.

A message has begun appearing in my 2018 Chevy Equinox LT that states "Parking Brake Released". This message did not previously appear and seems to be a potential issue to fix. After doing some online research, I found 3 technical service bulletins for parking brake issues/messages for the 2018 Equinox on an automotive repair website. However, when I contacted the Chevy dealership and did a VIN search, there were no open recalls or any recalls for my car. I am not clear why other 2018 Equinox models have recall notices but my VIN number is not impacted by those notices, even though it was manufactured during the same year. Please help investigate if my car should be included in those TSBs and dealer repairs. The TSB numbers are: 20NA094, 19NA213, and PI1410B.

The sun roof shade is inoperable. The sunshade retracts, but does not go back into the roof so the whole shade hangs down. This completely blocks the view of the driver out the back window and is a severe safety risk. Even when the sunshade is "closed" the material hangs down, continuing to block the drivers view out of the back window. The shade has come off the tracks and unglued. The issue has been confirmed as inoperable and an internal fault in the roof shade assembly by a Chevrolet dealership and needing to be replaced completely. I have taken it to several other shops around my city, and have been informed that this is a common problem that is being referred back to dealerships for fixing. There was no prior warning sign, and my car has been experiencing this issue since July 2023.

Service brake assist

The contact owns a 2018 Chevrolet Equinox. The contact stated that while at a stop light and releasing the brake pedal, the vehicle shutdown before the accelerator pedal was depressed. The contact turned off the vehicle and the vehicle failed to restart. The electrical systems in the vehicle turned on and off and the doors were locking and unlocking independently. Additionally, the instrument cluster warning lights were turning on and off. The contact also stated that the parking brake and traction control functions were engaged. The contact released the brake pedal and the vehicle jolted and turned on and restarted. While driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to the local dealer but was not diagnosed or repaired. The manufacturer was contacted and referred her to the NHTSA hotline, but no additional assistance was provided. The failure mileage was approximately 99,400.

I have purchased a 2018 Chevy equinox. It was damaged on the back bumper (rebuilt title). The backup camera works fine but there is a side detection error that comes on everytime I start the vehicle. The shop replaced the entire harness however that did not fix the issue. I have read 1000's of complaints on this. My vehicle has 45000 miles. This is effecting my gas mileage as well as other safety features. I see this has been an issue in MANY GM models and it has been taken care ( special warranty) but not on a 2018 equinox as of yet. I want to report this problem and see if someone can look into all the other forums etc to see how widespread this really is. The light has came on a few times lately but only when I am parked and not going anywhere??? Thanks in advance.

Since I bought this car I have had to replace sensors like they’re going out of style. However I would like to report on 3 sensors that went out simultaneously on my vehicle in heavy traffic. I had the vacuum boost sensor for my master cylinder, my cam shaft sensor and my crank shaft sensor go out simultaneously. As a result my vehicle engine cut off completely (battery components still working) and I had zero control over my breaks. I had to use my full body weight on my break pedal to get the vehicle to stop. I was fortune to have been able to pull off into a parking lot. I have had to replace several o2 sensors on this vehicle. I didn’t think anything of having any electrical issues until this happened. My check engine light has stayed on for over a year despite clearing codes and replacing o2 sensors. We check periodically and the only code is usually for the o2 sensor. We can save the sensors we have replaced for inspection if necessary. I had a low engine power signal flash across the infotainment system just before this happened. I was in heavy traffic and I’m just fortunate I was able to get out of the way quickly enough before I hurt myself or someone else. The break issue and loss of power was actually terrifying

rear liftgate will only open most of the time it will not close when using the buttons on vehicle or on key fob, ongoing issue since

We were driving at night I had turned on the overhead cabin light and when I turned on the overhead cabin light so my wife could hand food to our are sun and behind us the At the same time that I push the button the sunshade started to go and so I let it go but then it got jammed and it started to crank so I pushed the button in it started to go and reverse and then it like Jim in it aint like you know the motor growing sound and like there's a big shatter we thought that it was the glass from the moon roof shuttering turned out it was just like the plastic piece it was like holding the shade in place and so And so then to get that repaired they had to take the roof off take the rails out to get to the little plastic piece to call that plastic piece an external trim fastener so if it was an internal fastener it would be covered if it was because it was a fascinary if it was because it was a fascinator if it was because it's trim I don't know what trim you have to pull a roof off and pull rails out to it to find but that is why they didn't call it cover it

The vehicle first started having a cigarette residual smoke smell in it during the summer of 2019. It was right after a good rainfall, but we didn't know what to attribute it to. We called the local Chevrolet dealership and they weren't sure what it might be either. The odor would come and go over the last couple of years, but we couldn't figure out what it was from as none of my family members smoke. Then my husband went to run errands in my vehicle during a heavy downpour and heard water running inside of the car. He found water coming out of the fuse panel on the driver's side in the rear hatch (video available). He started removing the wet stuff in the rear hatch & when he got down to the spare tire compartment, he found it was filled with water. He also smelled the cigarette smoke-like odor like 10 times stronger than before & realized that it was due to the felt-like pad in the spare tire compartment being soaked in water. We again called the local dealership & they weren't sure what the problem might have been. My husband & stepfather did research and found out a lot of Equinox owners were experiencing the same issue & it had been determined that it was due to the sunroof water drainage system being clogged. The provided solution was to run air through the water drainage pipes, which my husband did. However, the vehicle still had some water appearing behind the driver's side seat during the lighter rainfalls afterwards. As well, the odor that smelled like cigarette smoke had now been replaced with a strong mildew/mold smell. This poses two major safety issues - water going into fuse boxes (water & electrical don't mix), as well as the mold/mildew being inhaled - especially of concern since we have two toddlers sitting in the backseat of this family vehicle. One dealership was unable to duplicate water inside the vehicle, but found the water drain pipes partially clogged. Other dealership noted mold/mildew smell and did an ozone detailing.