The contact owns a 2015 Chevrolet Tahoe. The contact stated that while starting and driving the vehicle, there was an abnormal whining noise detected. The vehicle was taken to the local dealer where it was diagnosed and determined that the transmission needed to be replaced. The vehicle was repaired. After retrieving the vehicle from the dealer, the contact stated she was driving, and the brake pedal was hard and failed to respond. The contact drove into the curb. The contact called and informed the dealer of the additional failure. The contact also stated that the whining noise persisted. There were no warning lights illuminated. The vehicle was towed to her residence. The vehicle was then towed to the local dealer again where it was diagnosed and determined that the vacuum pump had failed and needed to be replaced. The vehicle was repaired. The contact stated that while driving after retrieving the vehicle, the vehicle was jerking. The contact stated that the failure was related to NHTSA Campaign Number: 19V645000 (Service Brakes, Hydraulic). The manufacturer was not contacted. The failure mileage was approximately 70,000.

- Kalamazoo, MI, USA

The contact owns a 2015 Chevrolet Tahoe. The contact stated that while driving at various low speeds and coming to a stop at a stop signal or while attempting to park the vehicle, the brake pedal failed to respond. The contact stated that excessive force was needed to depress the brake pedal. No warning lights were illuminated. The vehicle was taken to a local dealer and was repaired under NHTSA Campaign Number: 19V761000 (Service Brakes, Hydraulic, Electronic Stability Control); however, the failure reoccurred and was more frequent. The vehicle was not taken back to the dealer or to an independent mechanic. The manufacturer was not made aware of the failure. The approximate failure mileage was 146,000.

- Macon, GA, USA

The contact owns a 2015 Chevrolet Tahoe. The contact stated that on multiple occasions, the brakes failed to operate as needed while depressing the brake pedal. There was no warning light illuminated. The contact took the vehicle to an independent mechanic where the brake pads were replaced; however, the failure persisted, and the contact was referred to the dealer. The vehicle was not repaired or diagnosed. Upon investigation, the contact linked the failure to NHTSA Campaign Number: 19V645000 (Service Brakes, Hydraulic). The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 147,000.

- San Antonio, TX, USA