Table 1 shows one common service brakes related problems of the 2026 Chevrolet Equinox.
| Problem Category | Number of Problems |
|---|---|
| Service Brakes problems |
On February 23, 2026, while driving my 2026 Chevrolet Equinox ev home from folsom Chevrolet following a prior repair visit, the “service park assist system” warning illuminated, first intermittently, then after a few miles, continuously for the remainder of the 11-mile drive home. During the same drive, while reversing with no objects present behind or around the vehicle, the automatic emergency braking system activated and applied the brakes with significant force without cause. The vehicle was returned to folsom Chevrolet (repair order #559378, opened February 23, 2026). Diagnostic code u1126 was found — indicating the left rear short range radar sensor had lost communication on can bus 8. The sensor module was on national backorder, keeping the vehicle out of service for approximately two weeks. The module was replaced and programmed on March 7, 2026. Safety concern: unexpected activation of automatic emergency braking with no objects present creates a serious collision risk from following traffic. This failure occurred on public roads during normal driving. Additionally, the u1126 can bus communication fault is the same vehicle communication architecture implicated in the battery/electrical failure documented in repair orders #558923 and #559167, suggesting these failures share a common root cause in the vehicle’s electrical communication network rather than representing isolated component failures.
Hello, since I purchased the vehicle on October 1, 2025, there have been issues regarding collison system and adaptive cruise control. When driving down the road it will try to come to a complete stop with no reasoning. It happens more often when it is rainy and night time. I believe the collision system is conufsed with oncoming traffic and it thinks they are on my side of the road but they are not. I also get alerts with side mirrors and shaking of my seat when no one is beside me. It triggers to say someone or a vehicle is approaching from the side, but there is no one or nothing there. The issue that is most troubling is I almost hit someone in the rear end on 02-03-2026. I went to slow down for a traffic light, and it started slowing down, but then got a surge and would not allow me to stop any more. It kept going. I had to remove my foot from the brake and hit it again harder. It has happened a few times, but not in a situation like this. Thankfully I was following a safe distance or I may have hit the vehicle stopped in front of me. Similar situation happened a few times, one when I was pulling into an applebees to eat, the brake did not want to stop the vehicle. It was like a surge of power again. This time was not as bad as no one or a vehicle was not in front of me. I have also noticed it a few times driving and when I go to stop the surge, but it seems to be escalating. I do not have the auto start stop on, I switch it off as soon as I start the vehicle. I do not have the auto hold on when it happens either. I have an appointment on the 16th of February to hopefully get it looked at, but will see.
Chevrolet service states brake master cylinder failed prematurely.
The brake system, specifically the master brake cylinder and/or associated brake system components, failed or malfunctioned. The defect results in a sudden loss of braking performance without warning. Yes, the vehicle is available for inspection upon request. It has remained in the continuous possession of the authorized Chevrolet dealership since January 13, 2026, and has not been returned to service. The defect involves the primary braking system, which is a critical safety component. Sudden and unexpected loss of braking ability significantly increases the risk of a collision, serious injury, or death to the driver, passengers, pedestrians, and other motorists. The vehicle was deemed unsafe to operate due to the risk of brake failure. The problem has been confirmed by the authorized Chevrolet dealership. The service department diagnosed the issue as a defective master brake cylinder and/or related brake system components. The dealer advised that the condition presents a safety risk and that the vehicle cannot be safely operated until the issue is addressed. The vehicle has been inspected by an authorized Chevrolet dealership acting as the manufacturer’s representative. The manufacturer has been made aware of the problem. No inspection by police or an insurance representative has occurred, as no crash took place. The vehicle remains unrepaired as of February 9 due to parts unavailability. There was no adequate warning that would have allowed the driver to anticipate the loss of braking performance. The defect results in sudden brake failure without sufficient advance warning, which is a significant safety concern. The issue was identified in January 2026, at which time the vehicle was taken to the dealership. On January 13, 2026, the vehicle was removed from service and has remained at the dealership continuously since that date. The vehicle remains out of service because the master brake cylinder is on backorder. There is no eta, and as a result, no repairs.
Vehicle went into brake assist failure and would roll in neutral but no drivetrain power or brakes. Dealer took 3 months to find part. Acceleration jerky at stop or while driving. Pedal too sensitive. Constant traction loss from stop at lights and stop signs if not careful on dry pavement. Mode selection to rain/snow helps by restricting power, if it is remembered to be turned on. With rain and snow on the road it becomes challenging. Aggressive safety features that include the automatic braking and alerts. Brakes and alerts on double turn lanes and going forward near passing objects on the side.
I am experiencing multiple unresolved defects with my 2026 Chevrolet Equinox affecting drivability, braking behavior, and vehicle structure/fit and finish. The primary issue is a persistent vibration, shimmy, or wobble during moderate acceleration from a stop. This condition is felt through the steering wheel, seat, and floor, and occurs consistently during low?speed launch and normal acceleration. In addition, the vehicle produces a snapping or grunting noise during hard braking, as well as rough and loud movement noises from underneath the vehicle during normal operation, which raises concerns about braking and drivetrain integrity. There are also body and interior fitment defects. The front passenger door does not sit flush with the rear door panel and appears slightly open when closed. The dealership service manager stated that correcting this condition would require removing and pulling the rear door panel outward so both doors align. The glove box door also does not sit flush when closed, and the service manager advised that replacement might make the condition worse. These concerns were reported to an authorized Chevrolet dealer. The dealer confirmed that general motors has acknowledged the acceleration vibration condition in a preliminary information service bulletin (pit6466) affecting 2025–2026 Equinox vehicles and advised that gm engineering is investigating the issue and that no repair is currently available. The combination of drivability issues, abnormal noises during braking, underbody movement sensations, and body misalignment affects the use, value, and safety perception of the vehicle. The vehicle has very low mileage, and several of these issues have been present since early ownership. I am submitting this complaint to document these conditions and request that NHTSA monitor potential powertrain, braking, suspension, and vehicle structure concerns if a defect trend exists. All of these defects have been acknowledged by the dealership service dept.
When trying to disengage cruise control, with button on steering wheel, brakes locked up going 75mph on the interstate. Would not unlock until I physically pressed brake pedal. If I had not been able to control the car, we would have been sent head first into the concrete barrier wall. Also, when trying to start car or put in into gear, it tells me to "press brake" when the brake pedal is pressed as far as it can go. Radio will randomly cut off and screen goes blank. Trunk button on drivers door does not open trunk without pushing it minimum of 5 times. Sometimes it takes more.
The contact owns a 2026 Chevrolet Equinox. The contact stated that there was a crackling sound coming from the brake pedal while depressing the brake pedal, with the message a "service all wheel drive system" displayed on the instrument panel. The contact stated that while the awd feature was activated and driving up an incline, the vehicle hesitated while depressing the accelerator pedal with the "service all wheel drive system" message displayed. The dealer was notified of the failure, and an appointment was made for service. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 150.