This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.
full bulletin at NHTSA ↗2006 GMC Yukon brakes problems
severe 11 complaints filed with NHTSA · avg repair $450 · see brakes across all vehicles →
Failure mileage
Complaints
11
Recalls
0
Avg fix
$450
3crashes
1injury
When does it fail?
Of the 11 brakes complaints filed for the 2006 GMC Yukon, here's the actual mileage breakdown — failures cluster heaviest at 100,000-125,000 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.
This service bulletin provides information for tire pressure monitoring (TPM) system concerns.
full bulletin at NHTSA ↗This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
full bulletin at NHTSA ↗This informational bulletin provides technicians with a brake lathe calibration procedure.
full bulletin at NHTSA ↗This informational bulletin provides technicians with a brake lathe calibration procedure.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners report two main brake problems on 2006 GMC Yukons: corroded and ruptured brake lines, and premature rear brake pad and rotor wear.
Brake line corrosion is the dominant complaint. Owners describe finding extensively rusted steel lines that leak or burst completely, sometimes with little warning. Several report the lines failed catastrophically while driving—losing all braking pressure mid-trip. One owner's line burst during light-speed driving, another experienced brake failure at 45 mph on a vehicle with just 31,000 miles that had recently passed Virginia state inspection. Multiple owners note the corrosion is severe despite low mileage, garage storage, and minimal salt exposure, leading them to claim the issue is specific to GMC material or design rather than weather-related wear.
Owners also report needing repeated rear brake pad and rotor replacement, citing pitting, grooving, and rapid wear. One mentions an "insufficient aluminum disc" design as the cause. When brake lines fail, fluid loss is visible—owners describe soaked driveways and wet undercarriages.
One complaint describes ABS activation at low speeds and wheel speed sensor corrosion accompanying the brake line issues. Another owner reported engine surge during brake application, though the dealership found no problem after testing.
Most owners sought reimbursement from GMC for repairs totaling around $800 per vehicle and report being refused. Owners express frustration that NHTSA closed an investigation into the brake line corrosion, viewing it as premature.
Same GMC Yukon brakes reports on nearby years: 2005 · 2007
Failure modes owners describe
Brake Line Corrosion and Rupture
Steel brake lines corrode severely and rupture or leak, causing partial or complete brake fluid loss and brake failure. Owners report the corrosion occurs despite low mileage, garage storage, and non-salt climates, suggesting a material or design defect rather than environmental wear.
When: Low mileage (31,000 to ~50,000 miles implied); vehicles 6–8+ years old at time of complaint
Symptoms owners cite: Spongy or unresponsive brake pedal; Brake pedal going to floor with no stopping power; Visible brake fluid leaking from underside of vehicle; Wet driveway or soaked undercarriage; Complete brake failure during normal driving; Rusted, pitted appearance of brake lines upon inspection
Repairs/costs cited: Full brake line replacement; one owner paid ~$800 for repair. Some required concurrent rear brake pad and rotor replacement, rear axle seal replacement, rear cover gasket seal replacement, and brake fluid flush.
Recalls/TSBs owners mention: GMC refused reimbursement requests; NHTSA investigation was closed (owners claim prematurely), determining the issue normal wear and tear rather than a design defect.
Premature Rear Brake Pad and Rotor Wear
Rear brake pads and rotors wear out rapidly and require repeated replacement. One owner attributes this to an insufficient aluminum disc design installed by GMC.
When: Multiple replacements over vehicle ownership; not tied to specific mileage in narratives
Symptoms owners cite: Pitted and grooved rotors; Frequent need for brake pad replacement; Brake system degradation over time
Repairs/costs cited: Rear brake pad and rotor replacement required, sometimes multiple times over vehicle life.
ABS Activation at Low Speed with Wheel Speed Sensor Corrosion
ABS activates unexpectedly at low speeds; brake line corrosion is accompanied by corrosion at wheel speed sensors, suggesting a systemic corrosion issue affecting multiple brake system components.
When: Timing not specified in narrative
Symptoms owners cite: ABS activation at low speeds; Corrosion visible at wheel speed sensors; Intermittent brake malfunction; Near-miss crash incidents
Synthesized from 11 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 2 most recent
Brakes failed with no warning lights or and kind of indication . Fluid dripping out rear of vehicle. I was almost in a bad accident because of this ,also went into a panic attack. Had other people and my life in danger.
Again, I am writing. I implore you to reinvestigation GMC for rusted brake lines. We replaced ours after they were so rusted, being a camping family, towing a trailer we could have all died. I understand that your office has investigated this and for whatever reason determined it was normal wear and tear but I think that your department is on overload and didn't want to handle another gm recall.…
Had brakes trouble with your 2006 GMC Yukon?
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 2006 GMC Yukon?
It's a meaningful issue. 11 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $450.
At what mileage does the brakes typically fail?
Across the 9 complaints that reported odometer mileage, most brakes failures cluster between 101,000 and 125,000 miles, with the median around 124,000. A quarter of owners report trouble before 101,000; a quarter make it past 125,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
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/2006/GMC/Yukon.
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.