Category
Sierra
Brake diagnostics, resets, and repair guides for every generation of the GMC Sierra.
37 guides
Warning Lights & Messages
SierraGMC Sierra Service Brake Assist Light: What It Means
A Service Brake Assist message on a GMC Sierra means the system that adds pressure in hard stops has a fault. See common causes and what to check first.
SierraGMC Sierra Service StabiliTrak and Brakes: Are They Related?
StabiliTrak and a GMC Sierra's brakes share sensors and hydraulic hardware, so a Service StabiliTrak message often appears with a brake warning.
Reset & Troubleshooting Guides
SierraGMC Sierra Soft Brake Pedal — Causes and What to Check
A soft brake pedal on a GMC Sierra usually means air in the lines, a fluid leak, or a worn master cylinder. Here is how to narrow it down.
SierraHow To Reset Change Oil Light on 2005 GMC Sierra
The reset change oil light on 2005 GMC Sierra is basically a maintenance reminder light that comes on your dash.
Sierra2020 GMC Sierra 1500 Brake Control Module: Test & Replace
Learn the symptoms of a failing brake system control module on the 2020 GMC Sierra 1500, how to diagnose it, and the steps to replace and calibrate it.
SierraGMC Sierra Parking Brake Reset After a Battery Disconnect
A dead or disconnected battery can leave a GMC Sierra's electronic parking brake stuck in a warning state. Here's how to reset it, step by step.
SierraHow to Bleed ABS Brakes on a GMC Sierra
A soft pedal after a full manual bleed often means air trapped in the GMC Sierra's ABS modulator. Learn why and how a scan tool ABS bleed clears it.
SierraWhy Won't My GMC Sierra's Brake Warning Light Turn Off?
If a GMC Sierra brake warning light stays on with good pads and fluid, the cause is often the parking brake switch, fluid level sensor, ABS or wiring.
Brake Pads, Rotors & Calipers
Sierra2018 GMC Sierra 1500 Brake Caliper Torque Specs
Front and rear caliper bracket bolt, guide pin bolt and wheel nut torque for the 2018 GMC Sierra 1500, by brake code (JD9 or J95/J96).
SierraWhat Does Service Brake Pad Monitor Mean on GMC Sierra?
Service Brake Pad Monitor on a GMC Sierra means the pad-life system found a fault, not just worn pads. What triggers it and how to clear it.
SierraGMC Sierra 1500 vs 2500 Brake Pad Differences
GMC Sierra 1500 and 2500 brake pads are not interchangeable. The heavy-duty 2500 typically uses larger rotors and calipers sized for its higher GVWR.
GMC BrakesGMC Sierra 1500 Brake Rotors
Explore essential info on GMC Sierra 1500 Brake Rotors: types, maintenance tips, and choosing the right rotors for safety and performance.
SierraThe Best Brake Pads For 2015 GMC Sierra 1500
Compare semi-metallic, ceramic and organic brake pads for the 2015 GMC Sierra 1500 and see top picks from ACDelco, Bosch, Wagner, Akebono and Power Stop.
SierraThe Best Brake Pads for 2018 GMC Sierra 1500 Trucks
Choose the best brake pads for a 2018 GMC Sierra 1500 by material, towing needs, noise and dust. Compare Duralast Gold, ACDelco and Power Stop Z36.
Trailer Brake Systems
SierraGMC Sierra Trailer Brake Gain Settings — 1500 vs 2500
GMC Sierra trailer brake gain is set with GM's 20-25 mph lever test, not a chart. Here's how, and why a 2500 often runs higher gain than a 1500.
GMC BrakesBuying a 2015 GMC Sierra Trailer Brake Control Module
Before replacing the trailer brake control module on a 2015 GMC Sierra, check its location, cost, common faults, and OEM vs. aftermarket options.
GMC BrakesHow to Turn Off The Trailer Brake System GMC Sierra
Discover how to safely turn off the trailer brake system GMC Sierra with our easy guide, ensuring optimal towing performance and safety.
GMC Brake Problems
GMC BrakesRear Disc Brake Conversion for GMC Sierra 1500 (2005-2013)
Which Sierra 1500 trucks have rear drums, how bolt-on rear disc conversion kits fit, and what to check on axle, wheels and parking brake before buying.
GMC BrakesHow to Bleed GMC Sierra Brakes: Sequence and Steps
Bleed a GMC Sierra from the right rear to the left front with fresh fluid. See the tools, steps, and when an ABS truck needs a scan tool bleed.
GMC BrakesChanging Rear Drum Brakes on a 2007-2013 GMC Sierra 1500
How to replace rear drum brake shoes on a 2007-2013 GMC Sierra 1500, how to confirm your truck has drums, and how to set the self-adjuster correctly.
Sierra2024 GMC Sierra 1500 Brake Controller: Setup and Gain
How the 2024 GMC Sierra 1500 integrated trailer brake controller works, how to set trailer gain, and what to do if your truck was built without one.
SierraTop 5 Aftermarket Brake Upgrades for GMC Sierra Trucks
The five brake upgrades that matter on a GMC Sierra, what each one improves, when it's worth the money, and which ones help most when you tow.
SierraOEM vs Aftermarket Brake Parts for GMC Sierra
GM Genuine vs ACDelco Gold vs ACDelco Silver vs independent brake parts for the GMC Sierra: fit, friction, warranty, and which tier suits your truck.
SierraHow to Change Brakes on a 2020 GMC Sierra (Pads and Rotors)
Step-by-step front and rear brake pad and rotor replacement for the 2019-2025 GMC Sierra 1500, including parking brake service mode and pad-life reset.
GMC BrakesGMC Sierra Third Brake Light Bulbs
Compare third brake light bulb options for the GMC Sierra, including AUXITO and Diode Dynamics LEDs, and why LEDs tend to outlast halogen bulbs.
GMC Brakes2004 GMC Sierra Brake Light Bulbs
Find the right brake, turn signal, and side marker bulbs for a 2004 GMC Sierra, and see how halogen and LED replacements compare.
SierraHow to Adjust Parking Brake Cable 1999 GMC Sierra
Adjust the parking brake cable on a 1999 GMC Sierra at the adjusting nut where the cable splits. Aim for 4 to 6 clicks of pedal travel before it engages.
SierraGMC Sierra Brake Fluid Types: DOT 3 vs DOT 4 Explained
DOT 3 vs DOT 4 brake fluid for the GMC Sierra: how the types differ, which ones are compatible with your truck, and why regular fluid changes matter.
GMC BrakesGMC Sierra Suspension: A Smooth Ride for Every Adventure
Get the lowdown on GMC Sierra Suspension: Your ticket to a comfy, controlled drive whether off-road or in the city. Dive in for details!
SierraThe Lowdown on the Upcoming 2025 GMC Terrain
GMC released some shadowy teaser photos and a short video giving us our first peek at the design of the 2025 GMC Terrain.
GMC Brakes2023 GMC Sierra Must Have Accessories
Upgrade your truck game with the best 2023 GMC Sierra must have accessories. Click to find out how to enhance style & functionality!
GMC Ownership Guides
Sierra2009 GMC Sierra RPMs Drop When Shifting Into Gear
Checking vacuum hoses is a good place to start when troubleshooting the 2009 GMC Sierra RPMs drop issue.
Sierra2024 GMC Sierra EV Recall: Dim Turn Signals Pose Safety Risk
GM recalled 1,962 2024 GMC Sierra EV trucks because the front turn signals are too dim to tell apart from the parking lights. The dealer fix is free.
SierraGMC Sierra 2.7L Turbo Fuel Injector Fix: GM Service Update
GM Service Update N242450631 fixes fuel injector flow on 2019-2022 GMC Sierra 1500s with the 2.7L turbo. The free ECM reprogram takes about 30 minutes.
SierraGMC Truck Settlement: $35M for Faulty Fuel Injection Pumps
GM's $35M settlement covers 2011-2016 GMC Sierra and Chevy Silverado Duramax LML trucks with CP4 pumps. See eligibility, payouts and how to file.
SierraGMC Sierra EV Denali: 440-Mile Range Boost and CrabWalk
GMC raised the Sierra EV Denali range estimate to 440 miles. Here is what changed, plus the CrabWalk and other features on the electric pickup.
Sierra2023 GMC Sierra 1500 Towing Capacity
The 2023 GMC Sierra 1500 towing capacity is one of the top selling full-size pickup trucks on the market.