Is the 2008 Chevrolet Trailblazer a bad year?
193 owner complaints to NHTSA. Engine and transmission complaints are in line with other Trailblazer years.
Keep it. You picked a good year.
Engine and transmission complaints for the 2008 Chevrolet Trailblazer are in line with other Trailblazer years. Electrical system stands out for this year: see below.
4th quietest of 10 Trailblazer years by owner complaints (years with 7+ years on the road).
The verdict moves with mileage: the same car reads differently at 30,000 and at 150,000 miles.
What 2008 Trailblazer owners report, by mileage
Each system owners named in five or more complaints, with the mileage range where the middle half of those complaints were filed. Read at 79,000 miles.
| SYSTEM | COMPLAINTS | MIDDLE HALF FILED AT | TYPICAL US REPAIR BILLS |
|---|---|---|---|
| Electrical systemSTANDS OUT | 65 (34%) | 61k–100k miles · around this mileage | 12-volt battery replacement $100–$400 · Starter motor replacement $350–$1,200 |
| Air bags | 33 (17%) | 33k–113k miles · around this mileage | — |
| Engine | 26 (13%) | 63k–121k miles · around this mileage | Valve cover gasket replacement $110–$500 · Timing chain replacement $1,000–$4,000 |
| Exterior lighting | 17 (9%) | 76k–146k miles · around this mileage | — |
| Brakes | 15 (8%) | 46k–113k miles · around this mileage | Brake pad replacement (one axle) $115–$390 · Brake pads and rotors replacement (one axle) $200–$1,084 |
| Steering | 11 (6%) | 55k–111k miles · around this mileage | Steering rack and pinion replacement $700–$2,100 |
| Stability control | 10 (5%) | 56k–106k miles · around this mileage | — |
| Transmission and drivetrain | 10 (5%) | 39k–91k miles · around this mileage | CV axle / CV joint replacement (one side) $300–$1,500 · Automatic transmission replacement $2,500–$7,000 |
| Visibility and wipers | 8 (4%) | 61k–110k miles · around this mileage | — |
| Fuel system | 8 (4%) | 44k–75k miles · mostly behind | — |
| Seat belts | 12 (6%) | too few with a mileage | — |
| Speed control | 8 (4%) | too few with a mileage | — |
| Exhaust | 7 (4%) | too few with a mileage | — |
| Suspension | 7 (4%) | too few with a mileage | — |
Bills are typical US ranges from the sources named in the tool (J.D. Power, Kelley Blue Book, CarParts.com and others), printed only for systems that stand out or sit at or ahead of 79,000 miles. Not a quote.
What owners reported alongside their complaints
Of 193 complaints: 10 mention a crash · 11 mention a fire · 8 report an injury · 3 say the car was towed.
1 complaint was filed in the last 12 months, the newest in May 2026.
Counts of what owners wrote in their complaints, not verified by anyone.
In owners' own words
Seems to be a lot of others with this problem. GM should consider a recall. People don't have &500-$600 laying around.
The GM LS2 engine installed in the trailblazer ss models has a known oiling issue which causes the engine to be starved for oil and thus, spins a rod bearing.
Started vec. In the morning. Exhaust very loud. Checked exhaust system found manifold cracked. Got on on star acct...stated extended coverage had expired.
Unedited excerpts from complaints filed with NHTSA, chosen by mileage (nearest 79,000 miles), not by content. Unverified.
Recalls for the 2008 Chevrolet Trailblazer: 0
No recall campaign lists this model year.
A recall may cover only some cars of a model year; the campaign size counts every model and year it lists. Enter your VIN at nhtsa.gov/recalls: dealers fix open recalls free.
Service bulletins from Chevrolet: 290
Repair instructions Chevrolet sent its dealers for symptoms seen in the shop on the 2008 Chevrolet Trailblazer. Ask a dealer or mechanic for a bulletin by its number.
Intermittent no crank, no start, or start stall concern with the security light coming…
Rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up
Guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system
Proper way to install the pistons in an engine
NHTSA defect investigations: 1
Loss of Headlights
Neighbouring years
2007 Trailblazer: 732 complaints, keep it · 2009 Trailblazer: 27 complaints, keep it.
Every Chevrolet Trailblazer year
2000 · 2001 · 2002 · 2003 · 2004 · 2005 · 2006 · 2007 · 2008 · 2009 · 2014 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026 · All Trailblazer years side by side
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Questions
Is the 2008 Chevrolet Trailblazer a bad year?
193 owner complaints to NHTSA. Engine and transmission complaints are in line with other Trailblazer years. At 79,000 miles the tool says: Keep it.
What are the most common problems with the 2008 Chevrolet Trailblazer?
By owner complaints to NHTSA: electrical system (65), air bags (33), engine (26), exterior lighting (17), brakes (15).
How many recalls does the 2008 Chevrolet Trailblazer have?
No recall campaign lists this model year in NHTSA data. Check your VIN at nhtsa.gov/recalls to confirm.
Method: counts of unverified owner complaints filed with NHTSA, compared only with other years of the same model (sales volumes are unknown, so no failure rate is computed). A system stands out at 40+ complaints and at least twice the model's quiet (lower-quartile) year, or twice the share across every vehicle of that model year. The mileage range is the 25th to 75th percentile of the mileages owners reported. Data received by NHTSA through November 5, 2026. Repair prices are typical US ranges from named sources, not quotes. Not a diagnosis and not financial advice. PulsCar is not affiliated with NHTSA. Check this car at your own mileage.