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ProblemsByVinFile / 2008-GMC-SIERRANHTSA data synced 1 day ago
GMC
2008 GMC Sierra problems
The 2008 GMC Sierra has 465 NHTSA owner complaints and 2 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 2008 GMC Sierra has 465 NHTSA owner complaints and 2 recalls on file (U.S. federal records, as of August 2026). The most-reported system is airbags at 266 complaints, typically surfacing around 87,731 miles (~$1,100 to repair). Source: NHTSA Office of Defects Investigation.
Average for the segment. Some recurring trouble spots worth knowing about.
0
Critical
2
Severe
0
Moderate
Should you avoid this 2008 Sierra?
Acceptable — with caveats
Worth owning if you verify the specific issues below before you buy.
Electrical system: 48 complaints, classified severe, failures cluster 40,000–120,000 mi
Reliability score 6.6/10 — around the segment average
2 recall campaigns on file
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.
Buying a used 2008 GMC Sierra? Check these first
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.
What to inspect on this specific car
airbags — 266 owner reports
· tends to show around 87,731 mi · ~$1,100 to fix
electrical — 48 owner reports
· tends to show around 82,054 mi · ~$850 to fix
body — 27 owner reports
· tends to show around 73,769 mi · ~$1,500 to fix
engine — 14 owner reports
· tends to show around 106,937 mi · ~$3,100 to fix
⚠ The one to take seriously: airbags is flagged
severe on this model
, showing up around 87,731 mi.
Inspect it closely on a test drive.
Recalls to confirm are done
Run the VIN from the listing — 2 active recalls on this model. Recall repairs are always free.
Verdict for buyers: 6.6/10 model. The priciest documented failure is
engine (~$3,100) — 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.
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.
Dash light, leak, worn part — snap it and we'll read it against this car's record.
Photo attached — type a question or just hit Ask.
Answers use this vehicle's NHTSA complaint & recall record — owner-reported and unverified, not a diagnosis. Verify anything safety-critical with a mechanic.
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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.
What owners are saying
recent NHTSA-filed complaints · verbatim
2008 Sierra· airbags
Tl* the contact owns a 2008 GMC sierra 1500. While the vehicle was parked, the front passenger side air bag independently deployed. The vehicle was taken to ramey princeton Chevrolet (located at 135 fairmont dr, princeton, wv 24740, (304) 425-2134) where it was diagnosed that…
Tl* takata recall. The contact owns a 2008 GMC sierra 1500. The contact received notification of NHTSA campaign number: 16v381000 (air bags); however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the…
My 2008 GMC sierra denali has water condensation in both of the tail lights. Its never happened before on any of my GMC trucks and this denali wasn't cheap.
Had a problem with your 2008 GMC Sierra?
File a complaint with NHTSA → It's free and official — owner filings are what build the federal safety record behind this page.
Estimate your repair exposure
Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
Gm is recalling certain model year 2006-2009 Buick, lucerne; Cadillac dts; Hummer h2; model year 2008-2009 Buick enclave; Cadillac cts; model year 2007-2009 Cadillac escalade, escalade esv, escalade ext; Chevrolet avalanche, silverado, suburban, tahoe; GMC acadia, sierra, yukon, yukon xl; Saturn outlook; and model year 2009 Chevrolet traverse vehicles equipped with a heated washer fluid system (hwfs)
It is possible for the heated washer module to ignite and a fire may occur.
Fix: Dealers will permanently disable and remove the heated washer fluid module. An updated page for the owner manual will be provided and inserted in the owner manual to document that the feature has been permanently disabled and removed from the vehicle. The safety recall began on june 11, 2010. Owners may contact Buick at 1-866-608-8080, Cadillac at 1-866-982-2339, Chevrolet at 1-800-630-2438, Saturn at 1-800-972-8876, GMC at 1-866-996-9463 and Hummer at 1-800-732-5493 or at the owner center at www.gmownercenter.com.
Gm is recalling 857,735 my 2006-2008 Buick lucerne; Cadillac dts; Hummer h2; my 2007-2008 Cadillac escalade, escalade esv, escalade ext; Chevrolet avalanche, silverado, suburban, tahoe; GMC acadia, sierra, yukon, yukon xl, Saturn outlook; and my 2008 Buick enclave vehicles equipped with a heated wiper washer fluid system
This may cause other electrical features to malfunction, create an odor, or cause smoke increasing the risk of a fire.
Fix: Dealers will install a wire harness with an in-line fuse free of charge. The recall began on september 12, 2008. Owners may contact Buick at 1-866-608-8080; Cadillac at 1-800-982-2339 or http://www.Cadillac.com; Chevrolet at 1-800-630-2438; Saturn at 1-800-972-8876 or http://www.Saturn.com, GMC at 1-866-996-9436; or Hummer at 1-800-732-5493; or through their website at <a href=http://www.gmownercenter.com>http://www.gmownercenter.com</a> .
Common questions
Is the 2008 GMC Sierra reliable?
It's got known weak points. With a reliability score of 6.6 out of 10 based on 465 owner complaints filed with NHTSA, the 2008 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.
Should you avoid the 2008 GMC Sierra?
The 2008 GMC Sierra is acceptable, with specific caveats. Worth owning if you verify the specific issues below before you buy. The record behind that call: Electrical system: 48 complaints, classified severe, failures cluster 40,000–120,000 mi; Reliability score 6.6/10 — around the segment average; 2 recall campaigns on file. This is our read of the federal complaint and recall data — not a substitute for a pre-purchase inspection.
What should I check before buying a used 2008 GMC Sierra?
Inspect the airbags first — it's the most-reported issue on this model, with 266 owner complaints filed. Typical failure occurs around 87,731 miles. Average repair cost runs about $1,100 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.
Is the 2008 GMC Sierra a good used car to buy?
It scores 6.6 out of 10 on our NHTSA-based read of 465 owner complaints. The main thing to watch is airbags. Typical failure occurs around 87,731 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.
What's the most common problem on the 2008 GMC Sierra?
Based on NHTSA records, the most-reported issue is airbags, with 266 complaints filed. Typical failure occurs around 87,731 miles. Average repair cost runs about $1,100 at an independent shop.
What's the most expensive thing that goes wrong?
The airbags is one of the costlier repair items. Average repair cost runs about $1,100 at an independent shop. Typical failure occurs around 87,731 miles. Catching early warning signs can sometimes extend life by 20–30,000 miles.
How do I check if my GMC Sierra has open recalls?
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.
Is an extended warranty worth it on a 2008 GMC Sierra?
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 465 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.
Recall and complaint data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database, last synced 1 day ago. Verify the raw federal record at
nhtsa.gov/vehicle/2008/GMC/Sierra.
Editorial commentary written by ProblemsByVin contributors and reviewed by ASE-certified mechanics.
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