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hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
66,718 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2014 GMC Sierra 1500 brakes problems

brakes problem

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2014 GMC Sierra 1500 Owner Comments

problem #4

Jul 242016

Sierra 1500

  • 35,000 miles


Intermittently, when applying the brakes to stop for a red light, the engine wants to keep the vehicle going at the same speed and fights the brake so the vehicle cannot stop. Shifting the gear shift into neutral allows the brakes to work but the engine RPM revs up to 2500 RPM for about 15 seconds before dropping to idle. If the driver didn't apply the brakes hard enough or shift into neutral, the vehicle would overpower the brakes and drive into anything ahead. Analogy: It acts as if the cruise control was on (and it's not) and tried to keep the same forward speed no matter the brake application. Dealer cannot reproduce the problem, no alert warning light. Some times, going at highway speed, taking foot off accelerator and expecting vehicle to start slowing down, it stays at same speed for about 15 seconds before dropping rpms. This has been happening, intermittently, for a few months.

- Hollis, NH, USA

problem #3

Feb 172016

Sierra 1500

  • 153,758 miles
The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving at 65 mph, the contact attempted to depress the brake pedal but it failed to respond. The contact had to apply extreme force to the brake pedal and shift the gear shifter into neutral in order to get the vehicle to stop. The vehicle was taken to a dealer, who diagnosed that the brake booster needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 153,758.

- Memphis, TN, USA

problem #2

Feb 132016

Sierra 1500

  • 50,700 miles
Due to a problem with brake booster vacuum sensor and brake booster large vacuum leak, extra pressure is needed to apply brakes. Brakes are essentially non existent in vehicle. Problem diagnosed by dealer. Dealer states this is not a normal problem with the braking system. This is a safety issue especially when driving and this unexpectedly happens. Vehicle was in motion when this happened driving at approximately 45 mph. I understand this was a similar problem with the 2014 Malibu. Replacement parts are on order unknown when expected due to this not being a part regularly replaced (per dealer).

- Goose Creek, SC, USA

problem #1

Oct 022015

Sierra 1500

  • 27,416 miles
The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving at approximately 20 mph, the steering wheel seized and veered independently. In addition, several unknown warning indicators illuminated. The contact was able to regain control after depressing the brake pedal. The failure recurred and the stability trac, and the service trailer brake warning light illuminated. The vehicle was taken to the dealer where it was diagnosed that a excessive voltage drop resulted in a loss of power with the manual trailer brake, the BCM, electronic BCM, ECM, steering. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was 27,416.

- Parkesburg, PA, USA

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