This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.
full bulletin at NHTSA ↗2016 GMC Sierra brakes problems
severe Owners of the 2016 GMC Sierra have filed 7 NHTSA complaints about the brakes at roughly $450 to repair (U.S. federal records, as of August 2026). Source: NHTSA Office of Defects Investigation. See brakes across all vehicles →
Complaints
7
Recalls
0
Avg fix
$450
| Model year | brakes complaints |
|---|---|
| 2013 Sierra | 5 |
| 2014 Sierra | 118 |
| 2015 Sierra | 208 |
| 2016 Sierra (this page) | 7 |
| 2017 Sierra | 99 |
| 2018 Sierra | 20 |
| 2019 Sierra | 60 |
| 2020 Sierra | 25 |
1crash
When does it fail?
Of the 7 brakes complaints filed for the 2016 GMC Sierra, here's the actual mileage breakdown — failures cluster heaviest at 50,000-75,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA brakes complaint has been filed on this vehicle in over 7 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering brakes on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
GENERAL MOTORS: PARTS FOR MOST VEHICLES, CLUTCH, MASTER CYLINDER ASSEMBLY ARE, REQUIRED AND REQUESTED, TO BE RETURNED AND NEED TO REORDER REPLACEMENT PARTS USING SAME PART NUMBERS.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 3 most recent
On several occasions I have had difficulty with the braking system. The braking system becomes unresponsive after pumping the brakes a few times. On several occasions I've had the brake peddle pushed to the floor in an attempt to stop the vehicle. This seems to happen mostly at slow speeds, a good example is when you are in a traffic jam and are primarily using the brakes to edge forward and…
Tl* the contact owns a 2016 GMC sierra denali. The contact stated that while the vehicle was being reversed at under 5 MPH, the brake pedal was depressed but failed to operate as intended. The contact crashed into a tree which caused damage to the passenger's side door, fender and side mirror. There was no injuries. The vehicle was taken to van buren Buick GMC located at 2257 jericho turnpike,…
My vehicle a 2016 GMC Sierra 1500 upon lower idle speeds loses vacuum pressure. As the vacuum level drops the brake assist decreases, increasing the braking effort, extending the distance required to stop the vehicle, which increases the risk of a crash. I have had a warning light come on advising to service the brake assist system. I took my truck to a local mechanic who confirmed the codes and…
Had brakes trouble with your 2016 GMC Sierra?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the brakes problem on the 2016 GMC Sierra?
It's a meaningful issue. 7 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $450.
At what mileage does the brakes typically fail?
Based on the 7 complaints filed, brakes issues most often appear around 55,734 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $450 for brakes repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to brakes?
No active recalls currently cover brakes issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2016/GMC/Sierra.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.