Brake Diagnostics · Repair Guides · Warning Lights
Know your brakes. Fix it right the first time.
145+ step-by-step guides on warning messages, brake resets, caliper torque specs and part choices for the Sierra, Yukon, Acadia, Canyon and Terrain — written for owners who do their own wrenching.
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SierraGMC Tow/Haul Mode and Auto Grade Braking Explained
GMC Tow/Haul mode holds gears longer and adds grade braking on descents. Here's what each grade braking type does and how to turn it off.
GMC BrakesGMC Terrain Brake Pads and Rotors: Cost, Parts, Lifespan
GMC Terrain brake pads and rotors by generation: GM's replacement rules, parts tiers, brake fluid, the rear parking brake and the one brake recall.
GMC BrakesGMC One-Pedal Driving and Regen on Demand Explained
How One-Pedal Driving and Regen on Demand work on the GMC Sierra EV and Hummer EV: menu paths, levels, brake lights, limits and brake care.
GMC BrakesGMC Lug Nut Torque Specs by Model (Chart)
GMC lug nut torque is 140 lb-ft on most models and 100 lb-ft on the 2018-2026 Terrain. See the full chart by model and year from GMC owner's manuals.
GMC BrakesGMC Adaptive Cruise Control: How It Brakes and Why It Quits
GMC Adaptive Cruise Control uses limited braking to hold a following gap. See how it stops, resumes, and why it turns temporarily unavailable.
GMC BrakesHow to Bed In New Brake Pads and Rotors on a GMC
How to bed in new brake pads and rotors on a GMC: 6 to 10 moderate stops from 30 to 35 mph, 2 to 3 firmer stops from 40 to 45 mph, then a cool-down.
GMC BrakesGMC Brake Pedal Pulsation and Steering Shake: Causes
A pulsing pedal or shaking wheel under braking usually means uneven rotor thickness from pad deposits, not a heat-warped rotor. How to find and fix it.
GMC BrakesGMC Brake Pad Thickness Chart — When to Replace
New GMC brake pads start at about 10 to 12 mm. Plan a replacement around 3 to 4 mm and replace right away under 2 mm. Chart with symptoms by stage.
YukonGMC Yukon Trailer Brake Troubleshooting
When GMC Yukon trailer brakes are dead, weak or locking up, check the 7-way connector, fuse, gain setting and trailer magnets, in that order.
Browse by Topic
Warning Lights & Messages
- GMC Adaptive Cruise Control: How It Brakes and Why It Quits
- GMC Service Brake System Message and Brake Recalls
- GMC Acadia Brake Warning Light Meanings
- GMC Brake Warning Light & Message Chart
- GMC Sierra Service Brake Assist Light: What It Means
- GMC Sierra Service StabiliTrak and Brakes: Are They Related?
- GMC Yukon "Reduced Braking Available" Message Explained
Reset & Troubleshooting Guides
- GMC Terrain Brake Reset After Rotor Replacement
- 2020 GMC Sierra Service Brake Pad Monitor Reset
- GMC Sierra Soft Brake Pedal — Causes and What to Check
- How To Reset Change Oil Light on 2005 GMC Sierra
- How to Reset Your GMC Acadia Radio
- 2020 GMC Sierra 1500 Brake Control Module: Test & Replace
- GMC Sierra Parking Brake Reset After a Battery Disconnect
- GMC Yukon Parking Brake Reset After Pad Replacement
Brake Pads, Rotors & Calipers
- GMC Terrain Brake Pads and Rotors: Cost, Parts, Lifespan
- GMC Brake Calipers: When to Replace and How to Maintain
- 2018 GMC Sierra 1500 Brake Caliper Torque Specs
- What Does Service Brake Pad Monitor Mean on GMC Sierra?
- Best Brake Pads for GMC Trucks: Types and Brands Compared
- GMC Brake Pad Thickness Chart — When to Replace
- How to Bed In New Brake Pads and Rotors on a GMC
- Best Brake Rotors for the GMC Acadia — Buyer's Guide
Trailer Brake Systems
- GMC Tow/Haul Mode and Auto Grade Braking Explained
- Service Trailer Brake System on GMC: Causes and Fixes
- GMC Trailer Brake Controller Wiring and 7-Pin Pinout
- How to Use a GMC Trailer Brake Controller
- GMC Sierra Trailer Brake Gain Settings — 1500 vs 2500
- GMC Yukon Trailer Brake Troubleshooting
- Buying a 2015 GMC Sierra Trailer Brake Control Module
- How to Turn Off The Trailer Brake System GMC Sierra
GMC Brake Problems
- Rear Disc Brake Conversion for GMC Sierra 1500 (2005-2013)
- 2008 GMC Yukon Brake Light Bulb Size (2007-2014 Chart)
- GMC Envoy Third Brake Light and Moulding (2002-2009)
- GMC Yukon Brake Replacement Cost: Pads, Rotors, Calipers
- How GMC Brake Systems Work: Hydraulics to StabiliTrak
- GMC Brake Maintenance: Intervals, Fluid, Towing, Winter
- GMC Canyon Brake Problems and Recalls by Generation
- GMC Yukon Brake System Guide (2015-2023)
GMC Ownership Guides
- GMC Lug Nut Torque Specs by Model (Chart)
- GMC One-Pedal Driving and Regen on Demand Explained
- How to Open GMC Acadia Trunk From Inside
- GMC Acadia Towing Capacity
- Does The GMC Acadia Have Engine Problems?
- 2007 GMC Yukon Denali 6.2 Oil Pressure Problems
- GMC Acadia Airbag Inflator Recall is Happening
- How To Start GMC Acadia With Key Fob