The vacuum pump had a complete failure, producing no vacuum pressure to the break assist. The recall suggesting the recalibration of the electronic brake control had been completed months prior. This resulted in similar symptoms, vibration in the break and a hard brake pedal. Once it completely failed, the pedal became extremely stiff and stopping was very difficult. Initially, the pedal vibration was noticed at slower speeds. When the pump failed, the vehicle was in motion on an off ramp coming up to a stop sign. It took almost standing on the break pedal to come to a complete stop. The vehicle has less than 72,000 miles on it.

- Milwaukee, WI, USA

The contact owns a 2014 Chevrolet Silverado 1500. The contact stated while driving 20 mph, the steering wheel ceased. The brake pedal was depressed several times but failed to adequately stop the vehicle which extended the braking distance. There were no warning lights illuminated. The vehicle was taken to lynn smith Chevrolet located at (925 N burleson blvd, burleson, tx 76028) where the vehicle received unknown repairs however, the failure persisted. The contact stated that on several occasions the brakes activated independently. The manufacturer was notified of the failure. The approximate failure mileage was 90,000.

- Fort Worth, TX, USA

The contact owns a 2014 Chevrolet Silverado 1500. The contact stated the vehicle was repaired under NHTSA campaign number: 19V645000 (service brakes, hydraulic) at vaughn Chevrolet Buick Cadillac located at (214 Texas St, natchitoches, la 71457). The contact stated while driving 60 mph, the brake pedal was depressed to the floor with both feet to avoid a crash. The vehicle slid to the side of the roadway. The contact stated service braking assist system warning light was illuminated. The vehicle was taken back to dealer and was informed that the brake booster pump needed to be replaced. The vehicle was not repaired. The manufacturer was informed of failure. The failure mileage was approximately 166,000.

- Campti, LA, USA

Driving down the highway, while coming up to traffic and coming to a stop, the brake pedal became rock hard and made it difficult to slow down or stop in time. In an attempt to stop the vehicle from crashing into the rear of the other other vehicles, I swerved to the right to avoid them and side swiped a guardrail. My vehicle now has body damaged on the passenger side. It has been dropped off at concord Chevrolet in concord, California. I also filed a claim with my insurance as well as General Motors.

- El Sobrante, CA, USA

Brake vacuum pump went out.

- Eagan, MN, USA

My truck tends to mimic the 19V761 recall of 2014-2018 Chevrolet Silverado with the 5.3L engine and 3.08 rear axle. However, my vehicle is the 4.3L on occasion, my truck will pull to the left or right unintentionally due to the brakes being used out of my control. I'm particularly lose control of the vehicle every 2-3 seconds while this is happening. The defect also happens more often while traveling above 35 mph and downhill. Most recently during a snow storm in 4WD. The 'episode' usually lasts until I restart the vehicle. If it resolves before I restart it does so viciously, and steering wheel corrects itself while vehicle is moving. I've been to dealership and have been told there's not a recall for VIN number.

- Layton, UT, USA

While backing up at low speed, less than 5 mph, my brakes stopped working. The brake pedal was hard and would not depress. Vehicle stopped after striking the curb. Shut the vehicle off, and re-started it a couple of times before the brakes returned to normal operation. Occurred at apartment complex parking lot.

- Anniston, AL, USA

The contact owns a 2014 Chevrolet Silverado 1500. The contact stated that while driving at various speeds, the brake pedal was depressed but required extra effort to slow or stop the vehicle. The contact stated that the brake pedal was extremely firm. The service brake assist message displayed on the instrument panel. The vehicle was taken to Suburban Chevrolet located at 12475 plaza dr, eden prairie, mn 55344, (952) 388-0061, to be diagnosed. The contact was informed that the brake assist vacuum pump needed to be replaced and a software update needed to be performed. The software update as performed however, the vacuum pump was not replaced due to parts being on back order. The manufacturer was contacted and informed of the failure. The contact was provided ase number: 9-5741973364. The approximate failure mileage was 108,000.

- Applevalley, MN, USA

Received a recall notice about brakes, stating as the vacuum level drops, the brake assist decreases, increasing braking effort, dealers will reprogram the electronic brake control module, free of charge. I have done this and the problem still exists, especially when driving at slower speeds...I believe replacing the vacuum pump would cure the problem and believe this should be a recall to replace such. Not to just reprogram the computer. I have had numerous close calls and feel this is a very big safety issue and a major concern. Thanks for your time!

- Keewatin, MN, USA

Brakes do not work at low speeds. Brake pedal becomes firm/locked and does not allow the pedal to be suppressed. The vehicle continues to roll after driver's maximum power is applied to the brake pedal. The same issue happens in forward and reverse and the vehicle continues to roll with little to no control.

- San Antonio, TX, USA

The contact owns a 2014 Chevrolet Silverado 1500. While reversing into the driveway, the brake pedal became extremely difficult to depress. The contact had to turn off and restart the vehicle in order for it to resume normal operation. The vehicle was taken to an independent mechanic to be diagnosed, but the cause of the failure could not be determined. The vehicle was not repaired. The vehicle was taken to chesrown Chevrolet Buick GMC (1701 columbus pike, Delaware, oh 43015, (740) 363-1175) where it was test driven. The dealer duplicated the failure and stated that it was a normal process for the braking system. The failure recurred multiple times intermittently. The contact referenced NHTSA campaign number: 19V761000 (electronic stability control, service brakes, hydraulic, service brakes). The manufacturer was made aware of the failure and provided case number: [xxx]. the contact was informed to take the vehicle back to the dealer. The failure mileage was approximately 44,000. Parts of this document have been redacted to protect personally identifiable information pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Galena, OH, USA

The contact called on behalf of the vehicle owner and driver his mother whom passed away due to injuries sustained in a head on collision. His mother owned a 2014 Chevrolet Silverado. The contact stated that per the vehicle's on-star report his mother was driving at 41 mph at point of impact however, the other vehicle was drifting in and out of the on-coming travel lanes. The contact stated that the point of impact was to the front driver side of the vehicle. The contact stated that the vehicle air bags deployed. The contact was awaiting for the manufacture to retrieve the event data recorder (edr) and case number 929378 was opened. A police report was filed. The front seat passenger in the other vehicle was in a coma, sustaining injuries to the chest and head. The driver passed away on impact. The vehicle was towed to a tow lot where it was deemed a total loss. The contact mentioned that NHTSA campaign number: 19V64500 (service brakes, hydraulic) recall notice was received several months after the collision and inquired if it was related to the collison. The approximate failure mileage was 100,000.

- Ivanhoe, NC, USA

2014 Chevrolet Silverado. Consumer writes in regards to mechanical vacuum pump safety recall. The consumer stated the brakes became very difficult to depress making it impossible to stop. The dealer programmed the brake control module but, the vacuum pump needed to be replaced. The consumer requested to be reimbursed.

- Millstone, KY, USA

The contact owns a 2014 Chevrolet Silverado 1500. While attempting to park the vehicle at a low speed, the brake pedal was depressed and required extra effort to stop the vehicle. The contact stated that the brake power assist failed. In addition, the ABS indicator illuminated and the audible ABS chime was activated. The contact stated that the vehicle was previously repaired per NHTSA campaign number: 19V645000 (service brakes, hydraulic) at bob poynter GM (1209 E tipton St, seymour, in 47274, (812) 672-4947). The vehicle was not taken to be diagnosed or repaired. The manufacturer was informed of the failure. The approximate failure mileage was 84,000.

- Brownstown, IN, USA

The contact owns a 2014 Chevrolet Silverado 1500. The contact received a recall notice for NHTSA campaign number: 19V645000 (service brakes, hydraulic). While driving and making turns, the steering wheel seized and failed to move. In addition, the brake pedal was difficult to depress and the vehicle lost power. When the vehicle was restarted, it operated as designed. There were no warning indicators illuminated. The vehicle was towed to sullivan-parkhill automotive (40 w anthony dr, champaign, il 61822, (217) 903-2817) where it was diagnosed that a software update, sensor, and new steering column were needed. The vehicle was repaired; however, the failure recurred. The vehicle was towed to best Chevrolet (2600 veterans memorial blvd, kenner, la 70062, (504) 315-7790), but was not diagnosed or repaired. The manufacturer was contacted and did not assist. The contact stated that the failure was similar to NHTSA campaign number: 17V414000 (steering). The failure mileage was 74,000.

- Morris, IL, USA

The contact owns a 2014 Chevrolet Silverado 1500. While driving 30 mph and making a right turn, the contact depressed the brake pedal, but the vehicle did not stop. As a result, the contact rear ended another vehicle. The air bags did not deploy. The contact sustained a whiplash that required medical attention, but the contact denied assistance. A police report was filed. The police towed the vehicle to a tow lot. The insurance company was not contacted. The vehicle was later taken to the contact's residence. The dealer and manufacturer were not contacted. The cause of the failure was not determined. The failure mileage was approximately 82,000.

- Corona, CA, USA

The contact owns a 2014 Chevrolet Silverado 1500. The contact received a recall notice for NHTSA campaign number: 19V645000 (service brakes, hydraulic). When the vehicle was started, the ignition switch seized and failed to release the key while the brake pedal was depressed. There were no warning indicators illuminated. The vehicle was not diagnosed or repaired. The manufacturer and dealer were not contacted. The failure mileage was 18,000.

- Clyde, NC, USA

The contact owns a 2014 Chevrolet Silverado 1500. The contact received notification of NHTSA campaign number: 19V645000 (service brakes, hydraulic). While driving, the vehicle did not respond immediately when the brake pedal was depressed. There were no warning indicators illuminated. The failure recurred. The manufacturer was made aware of the failure and stated that the recall would be repaired based on the remedy explained in the recall notice. The recall details were not provided. The vehicle was not diagnosed or repaired. The failure mileage was approximately 72,000. Parts distribution disconnect.

- Marina, CA, USA

The contact owns a 2014 Chevrolet Silverado 1500. When the brake pedal was depressed, the power assist warning indicator illuminated, the power assist failed, the doors would unlock and lock intermittently, the air bag warning indicator illuminated, and the air conditioning would turn on and off intermittently. The contact stated that the failures became more persistent after having the vehicle repaired per an unknown recall involving the brakes. Tom bell Chevrolet (located at 800 Alabama St, redlands, ca 92374, 909-748-1833) was contacted and stated that there was no recall for the failures. The vehicle was not diagnosed or repaired. The manufacturer was not informed of the failures. The approximate failure mileage was 51,000.

- Mentone, CA, USA

The contact owns a 2014 Chevrolet Silverado 1500. The contact received a recall notification for NHTSA campaign number: 19V645000 (service brakes, hydraulic). The contact took the vehicle to boniface hiers Chevrolet (800 S harbor city blvd, melbourne, fl 32901, (321) 723-3611) where the vehicle was repaired; however, the failure recurred. The contact stated that each time when driving, making a turn, and depressing the brake pedal, the vehicle stalled and the steering wheel failed to turn. The contact placed the gear into neutral to restart the engine. The vehicle was restarted and was able to drive normally. The key had to be used manually to start the vehicle when the failure occurred and an unknown warning indicator illuminated. The vehicle was not taken to a dealer or an independent mechanic for diagnostic testing. The manufacturer was not made aware of the failure. The failure mileage was approximately 99,000.

- Melbourne, FL, USA