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The 2006 GMC Sierra has 279 NHTSA owner complaints and 6 active recall campaigns on file. Here's the breakdown — what's serious, what's noise, and what a working mechanic would actually do about it.
The 2006 GMC Sierra has 279 NHTSA owner complaints and 6 recalls on file (U.S. federal records, as of August 2026). The most-reported system is brakes at 112 complaints, typically surfacing around 66,454 miles (~$450 to repair). Source: NHTSA Office of Defects Investigation.
| Model year | Owner complaints | Recalls |
|---|---|---|
| 2005 Sierra | 448 | 11 |
| 2006 Sierra (this page) | 279 | 6 |
| 2007 Sierra | 339 | 2 |
| 2008 Sierra | 465 | 2 |
| 2009 Sierra | 278 | 1 |
Average for the segment. Some recurring trouble spots worth knowing about.
The data says walk unless this exact vehicle has documented proof the brakes was repaired or replaced.
Our read of the federal NHTSA complaint and recall record for this exact year and model — not a substitute for a pre-purchase inspection. How we score.
Here's what this model is known to do — so you can inspect for it, price it in, or make the seller fix it before you sign.
⚠ The one to take seriously: brakes is flagged severe on this model , showing up around 66,454 mi. Inspect it closely on a test drive.
Run the VIN from the listing — 6 active recalls on this model. Recall repairs are always free.
Verdict for buyers: 6.2/10 model. The priciest documented failure is powertrain (~$2,500) — get the seller's service records for it or inspect closely. Otherwise an average-risk used buy at a fair price.
We tell you what this model is known for and what to inspect — a vehicle-history report tells you what this exact car has been through. Smart buyers get both.
See the full pre-purchase inspection checklist →A noise, a warning light, a repair quote, "should I buy this?" — get an answer grounded in this vehicle's actual NHTSA record, not generic advice.
Answers use this vehicle's NHTSA complaint & recall record — owner-reported and unverified, not a diagnosis. Verify anything safety-critical with a mechanic.
When owners report each system failing, in actual miles — so you can see what's likely behind you, what's due around now, and what to budget for next. Enter your mileage to mark where you are.
"Typical" = median owner-reported failure mileage from the NHTSA complaint record for this exact year and model. Not a maintenance schedule — a heads-up on where this model's failures cluster.
My 2006 GMC has only 29,000 miles on it. I bought the truck in october 2009 with 16,000 miles. I keep the truck clean inside and out, top to bottom including under the vehicle. People comment to me all the time on how nice the truck looks. Brake line let go in yard. Pedal went…
Tl* the contact owns a 2006 GMC sierra 1500. The contact stated that when driving at various speeds or sitting idle in park, the four wheel drive switch would intermittently activate and independently shift into low drive. The vehicle was inspected by a dealer who informed the…
Total brake failure while in motion. Corroded brake line ruptured causing immediate loss of all fluid. Had this happened 5 minutes earlier, I would have been on a four lane highway in bumper to bumper christmas traffic. At 70 years old I can only imagine how catastrophic an…
In late october, 2013, I purchased my 2006 GMC sierra c1500 standard cab, 2wd pickup from a private owner. On or about, december 01, 2013, I noticed that the "service air bag" warning message appeared intermittently. The "airbag" illuminated symbol in the dash instrumentation…
Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
Decreased lighting visibility may result in a vehicle crash.
If the trailer lights are not working properly, a vehicle crash can occur.
If a customer replaces a wheel and only relies on the rim size designation that is indicated on the label, a wheel that is of a different rim contour designation may be installed. It may be difficult or impossible to mount the tire on a wheel with the wrong contour. If the tire is mounted on the wheel with the wrong contour, the wheel and tire may not perform as intended, which could increase the risk of a crash.
It's got known weak points. With a reliability score of 6.2 out of 10 based on 279 owner complaints filed with NHTSA, the 2006 GMC Sierra has a higher-than-average rate of reported issues. The areas to watch are listed above. Whether it's worth owning depends on price, condition, and how much repair exposure you can absorb.
On the NHTSA data, the 2006 GMC Sierra is one to avoid unless a specific vehicle proves otherwise. The data says walk unless this exact vehicle has documented proof the brakes was repaired or replaced. The record behind that call: 5 fire-related complaints on the electrical system; Brakes: 112 complaints, classified severe, failures cluster 30,000–86,762 mi; Reliability score 6.2/10 — around the segment average; 6 recall campaigns on file. This is our read of the federal complaint and recall data — not a substitute for a pre-purchase inspection.
Inspect the brakes first — it's the most-reported issue on this model, with 112 owner complaints filed. Typical failure occurs around 66,454 miles. Average repair cost runs about $450 at an independent shop. Also confirm any open recalls have been completed by running the VIN, and ask for service records covering the problem areas listed above.
It scores 6.2 out of 10 on our NHTSA-based read of 279 owner complaints. The main thing to watch is brakes. Typical failure occurs around 66,454 miles. Priced fairly and clean on inspection, it's a reasonable used buy. Our data covers what this model is known for — pair it with a vehicle-history report on the VIN to see what that specific car has been through.
Based on NHTSA records, the most-reported issue is brakes, with 112 complaints filed. Typical failure occurs around 66,454 miles. Average repair cost runs about $450 at an independent shop.
The airbags is one of the costlier repair items. Average repair cost runs about $1,100 at an independent shop. Typical failure occurs around 94,728 miles. Catching early warning signs can sometimes extend life by 20–30,000 miles.
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 279 complaints on file and the costliest repair averaging $1,100, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans are not always better value.