The contact owns a 2012 Chevrolet Volt. The contact stated while driving at an undisclosed speed and attempting to slow down, the brake pedal required an abnormal amount of pressure to slow the vehicle. The ABS warning light was illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the brake pressure modulator valve. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 13V271000 (Electronic Stability Control, Service Brakes) however, the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was 120,000.

- Independence, MO, USA

The stability control system frequently accelerates when braking on a manhole cover or a major pothole. The acceleration is hard and could easily cause the driver to rear-end the car in front. I'm aware of the issue and brake fully before such an obstacle if there is a stopped car in front, but I warn every other person who drives my vehicle because of the seriousness of the issue.

- Brighton, MA, USA

The display that shows gas gauge, mph, etc. Has gone blank. It is a hazard. There needs to be a recall on this.

- Decatur, GA, USA

The contact owns a 2012 Chevrolet Volt. The contact stated that the brake pedal was applied and did not respond numerous times. The failure occurred intermittently. While driving, the transmission brackets fractured and caused the transmission to become detached. The vehicle was towed to a dealer for inspection and repair. The vehicle was not included in NHTSA campaign number: 13V271000 (electronic stability control, service brakes). The manufacturer was notified of the failure. The approximate failure mileage was 20,000.

- San Diego, CA, USA