2025 Chevrolet Equinox engine problems

Filed Nov 9, 2026 · Electrical, Engine · OH

My 2025 Chevrolet Equinox AWD would not start, and the wheels were locked, preventing the vehicle from being moved normally. Message on HUB screen stated "System Error. See dealership to restore operating system." The vehicle had a little over 14,000 miles at the time. Had to be towed in. When the vehicle first went to the dealership, they found that the battery had critically low voltage. After consulting with GM Technical Assistance, the dealership replaced the battery. Even with the new battery, the vehicle still would not start and the wheels remained locked. The dealership then replaced the brake control module per TAC guidance. The dealership told me the vehicle started after the module was replaced and the locked wheel issue was resolved. The vehicle was at the dealership for more than 30 days. In a separate earlier incident, while I was driving on the freeway at approximately 75mph with my young child in the vehicle, the Equinox downshifted extremely hard and lost all electronic functions. This incident happened twice in one trip. I am including this incident as a prior safety history. I am asking the federal safety agency to review the no-start and locked wheel incident and the dealership's repair findings for a possible safety defect.

Filed Oct 23, 2026 · Engine · ME

Roughly 6 months ago, the check engine light came on in my 2025 Chevrolet Equinox RS, which had under 20,000 miles on it at the time. I purchased an OBD scanner to run a diagnostic test, which came back with error code P04FB (Crankcase Ventilation Hose Connection Pressure Sensor Issue). I called the dealership that sold me the vehicle, and they ran their own diagnostics. They encountered the same error code, and ended up replacing the "faulty" crankcase ventilation pressure sensor, which was covered under warranty. Less than a week after they replaced the sensor, the check engine light came back on. I re-ran my OBD scanner, and it showed the same exact error code as before. Basically, the sensor was replaced, but the issue has not been resolved. I've been keeping tabs on GM's bulletin regarding this issue (which is apparently a known issue), and I'm concerned about the fact that there haven't been any recent updates regarding a fix. GM's own recommendation to dealerships is to simply clear the error code and return the vehicle to the customer... I can clear the code myself, but that certainly does not prevent it from coming back. At this point, the error code has been cleared at least 10 times, and it always comes back within a few days of clearing. This becomes a safety issue because we are quickly approaching the Winter months again, and the temperatures get very cold where I live. When the check engine light is on, my car fully prevents me from using the remote-start feature. I'm unable to remotely start the car from both my key FOB, and from the MyChevrolet app. Thank you for your attention to this matter. My hope is that GM's engineers find a real solution to this problem, and quickly! Because, as I said before, this has been an ongoing issue for many months, and I've yet to see any meaningful movement from GM on this issue.

Filed Sep 22, 2026 · Engine · 12,000 miles · IN

The contact owns a 2025 Chevrolet Equinox. The contact stated that while driving approximately 30-50 MPH, the vehicle shuddered violently. The failure had occurred on several occasions. The vehicle was taken to a dealer several times to be diagnosed; however, the dealer was unable to determine the cause of the failure. The manufacturer was notified of the failure via the phone. The failure mileage was approximately 12,000.

Filed Sep 3, 2026 · Brakes, Driver assistance · TX

On 3 occasions, the last happening today (XXX) traveling north on XXX toward [XXX] at approximately 14:05, the vehicle has stopped abruptly and hard, and will then release. Today, it took it longer to release. When it occurred this time, it braked just as hard but longer, so I had to cross two lanes so the cars behind me would not hit me. The cars swerved around me and the car eventually let go and I was able to accelerate from that dangerous position on the side of the highway. The first time it happened, someone was pretty close behind me. The car stopped hard, real hard, but let go quickly enough to accelerate before a collision. The second time, there was no one in front or behind us, and we were safe. It hadn’t happened in a while, today. We’ve downloaded 2 or 3 software update, and I was hoping it fixed the issue. It did not. Today the car stumbled and the rpm’s jumped. I feel like the car momentarily braked while I was accelerating. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 15, 2026 · Engine, Fuel system · FL

The vehicle lost acceleration/propulsion while traveling at highway speed on a major bridge with limited safe shoulder space. The vehicle suddenly stopped providing power needed to maintain speed in fast-moving traffic. Passengers included an infant, young child, and other family members. This created a serious safety risk because there was little room to safely pull over while traffic continued around the vehicle. The vehicle was towed to an authorized Chevrolet dealer and is available for inspection. The cause has not yet been confirmed. The vehicle has about 15,000 miles. Shortly after the lease began, the check engine light came on intermittently and then turned off the next time the vehicle was driven. There have also been prior concerns with unexpected automatic emergency braking behavior. This complaint is being filed because sudden loss of acceleration/propulsion at highway speed on a bridge creates a serious crash risk.

Filed Jun 2, 2026 · Brakes, Electrical · TX

Deconosco por que fue este en el sistema

Filed May 27, 2026 · Acceleration, Engine · CT

While driving my 2025 Chevrolet Equinox, the vehicle experienced a sudden power and drivability issue. The vehicle began to decelerate on its own while in motion, even though I was actively driving. A warning notification appeared on the driver dashboard, and shortly after, the vehicle power shut off. This creates a serious safety concern because the vehicle can unexpectedly lose speed and/or power while driving in traffic. The issue appears to involve the transmission, powertrain, or vehicle electrical/power management system. The loss of acceleration and sudden deceleration could increase the risk of a crash, especially at highway speeds or in heavy traffic. This incident occurred while the vehicle was being driven, not while parked. The warning message appeared on the dash before or during the power loss. I am reporting this because the vehicle’s sudden deceleration and power shutdown while driving could be a safety defect. I am requesting that the federal safety agency review whether this issue is related to a known defect, recall, transmission issue, powertrain control issue, or electrical system failure affecting the 2025 Chevrolet Equinox.

Filed May 15, 2026 · Engine, Lights · IN

The back lighting for the controls does not work the check engine light is on the dealer said there is no fix for either one of these items at this time

Filed May 7, 2026 · Engine, Transmission · 5,700 miles · OH

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.

Filed Apr 24, 2026 · Engine · WV

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 the federal safety agency step up and make Chevy fix their problem. Thank you.