2025 Chevrolet Equinox

The contact owns a 2025 Chevrolet Equinox. The contact stated that while driving at 70 MPH, the vehicle unexpectedly decelerated to 10 MPH with no warning lights illuminated. The contact was able to restart the vehicle following the failure. The vehicle was taken to the dealer. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 5,700.

While operating the vehicle on both interstate highways and local roadways, an intermittent malfunction occurs involving the All-Wheel Drive (AWD) system. The instrument panel displays a warning message stating, “Service All-Wheel Drive System.” When this warning appears, the vehicle automatically disengages from AWD and reverts to Two-Wheel Drive (2WD). Once this occurs, the system does not allow the driver to manually return the vehicle to AWD. This issue has occurred on more than three separate occasions. Notably, there have been instances where the warning indicator illuminated immediately upon starting the vehicle, prior to any extended operation. When the malfunction is present, the vehicle exhibits abnormal driving behavior, including a noticeable jerking or hesitation that feels consistent with a transmission-related issue. The failure is unpredictable in nature, with no clear pattern or triggering condition identified. This creates a significant safety concern, particularly when operating the vehicle at highway speeds or in conditions where AWD capability may be necessary for proper traction and control. An appointment has been scheduled with an authorized dealership for diagnostic evaluation; however, at the time of this report, the vehicle has not yet been inspected or repaired, and the issue remains unresolved.

While driving on the freeway, my vehicle displayed a “Service All-Wheel Drive System” warning and unexpectedly switched into two-wheel drive. This created a serious safety concern due to sudden loss of traction and control. Additionally, on multiple occasions while reversing, the vehicle abruptly applied the brakes without any obstruction present, displaying a message that automatic braking had engaged. My foot was on the accelerator at the time, and this created a sudden and unsafe situation. The vehicle has been taken to the dealership for repair, but due to the unpredictable nature of these issues, I no longer feel safe operating the vehicle.

This is a 2025 vehicle with 25,000 miles and the Check Engine Soon light stays illuminated due to a faulty PCV Valve or possibly a poorly designed crankcase. The engine code is P04FB and is commonly found as an issue when you do a search. As a safety precaution, the vehicle is programmed to not allow the remote start to work as designed when the engine light is on so this issue affects the overall functionality of the car. Having spoken with the dealership, they report seeing that engine code often and that the part is on backorder. The dealership seems to think it's the crankcase causing the issue and not the PCV Valve as the fix they have been ordering for them is the case. It will potentially go away as the weather is hotter, but if a chilly night or morning comes up, then the light will come back on because there is moisture buildup on the PCV Valve when the temperature drops that causes the light to come on. With all of the complaints I have read online for this very issue, I would like to see NHTSA step up and make Chevy fix their problem. Thank you.

Sometimes when I am backing up, the breaks will slam on. Back in 2025 first I noticed, but thought it was human error, just wasn’t sure. After it happened more than a couple of times in 2026, I realized it wasn’t me and must the safety warning system? I googled after it happened this month and (phantom breaking) popped up for the Chevy equinox. I Have an appt. With Chevrolet to check it out in 2 weeks. Scary when it happens. I’ve only noticed it so far when backing up. If it were to happen other than in a parking lot, that could be dangerous, especially if I am going faster.

The contact owns a 2025 Chevrolet Equinox. The contact stated that the high-voltage system message was displayed. The vehicle was taken to the local dealer, where an unknown diagnostic test and repair were performed on the computer, but the failure recurred. The vehicle was taken to the local dealer again, where the AC receiver was ordered; however, the part ordered was the incorrect part. The dealer informed the contact that the part was on back order. The vehicle was not repaired. The manufacturer was contacted and opened a case. The failure mileage was approximately 6,065.