2018 Chevrolet Equinox

I own a 2018 Chevrolet Equinox. While driving at highway speed, the brake pedal suddenly became completely rigid and could not be depressed. The engine continued running normally, there were no warning lights, and I had to coast into a parking lot because I was unable to brake normally. The vehicle was towed to a Chevrolet dealership. The dealership diagnosed a failed vacuum brake booster and replaced the brake booster at my expense. After the repair, the exact same safety issue occurred again while I was driving at approximately 25 mph. The engine was running normally, there were again no warning lights, and the brake pedal instantly became rock hard and would not depress. The repair did not resolve the condition, and I no longer believe the vehicle is safe to operate. I am reporting this because the same loss of brake assist occurred before and after the dealership’s repair.

My granddaughter was driving the vehicle and experienced a catastrophic engine failure while driving down the road. Warning messages and audible sounds began and said to turn off the vehicle immediately. The brakes completely stopped working at that point. She pulled over immediately and called to ask what she should do. She was approximately 1/2 mile from home and she drove approximately 10mph to her driveway, pumping the brakes helped get the vehicle to her driveway. The vehicle was then towed to the dealership.

The contact owns a 2018 Chevrolet Equinox. The contact stated that while driving at an undisclosed speed, the brake vacuum pump failed to operate as needed and caused the brake pedal to become firm. The message "Service Brake Assist" was displayed. The dealer was contacted, and the vehicle was diagnosed and determined to have the brake vacuum pump had disintegrated, and a part had fallen into the engine. The vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 118,876.

The contact owns a 2018 Chevrolet Equinox. The contact stated that while driving at an undisclosed speed, the transmission was slipping and shifted hard. Additionally, while on an incline, the vehicle failed to get up to speed. The contact associated the failure with NHTSA Campaign Number: 20V668000 (Power Train). The vehicle was driven in LIMP Mode back to the residence. The dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 112,381.

On a steep gravel road in a remote area, I pressed the accelerator and the vehicle stopped climbing. I inferred that traction control had intervened, but there was no immediate, obvious indication explaining why the car wasn’t responding. The most frightening part was not knowing what the vehicle was doing. A clear, immediate indication that traction control was actively limiting power would have reduced uncertainty.

While turning right at a red light my vehicle started making knocking noises, loss of acceleration then the ECM (limp mode) and ESC code happened. Protecting the vehicle from damage due to transmission fluid loss. Looked under the car and Transmission fluid was pouring out between the transmission and drive shaft. Car will no longer start due to codes being present from the computer shutting the car down during fluid loss.

The brake vacuum pump has gone out four times now. While driving the brakes suddenly become hard as a rock to push. Of the four times two of them have been close calls to having a serious collision. This is a known issue with these vehicles so it blows my mind there isn't a recall for this.

About 3 weeks ago my battery completely died and I had to get 3 jump starts in one day. Upon replacing my battery I continued to experience a drained battery. Then my in-car wifi stopped working. I contacted onstar and they attempted to reset it which didn't work. So they escalated the issue to the highest department. I also had the battery and alternator tested and it showed that the battery and alternator were not the issue. It was decided that the problem was electrical. So I had all the electrical connections tested and it was determined that the issue was with the oem module.