🚗 AutoDefect IQ

2008 Chevrolet Trailblazer problems, complaints & recalls

Most-reported problem areas: Electrical System (30) · Engine (20) · Exterior Lighting (15)

🧭 Reliability snapshot

85 /100
✓ Typical or better for this model

Compared against other Chevrolet Trailblazer model years — complaint volume vs the model's median year, recalls and severity. How we score →

🛣️ Complaints by mileage

<25k miles: 25 complaints <25k 25–50k miles: 21 complaints 25–50k 50–75k miles: 42 complaints 42 50–75k 75–100k miles: 36 complaints 75–100k 100–125k miles: 18 complaints 100–125k 125–150k miles: 9 complaints 125–150k 150k+ miles: 17 complaints 150k+

168 NHTSA complaints that reported an odometer reading.

193
Complaints
0
Recalls
921
Service bulletins
10
Crashes reported
11
Fires reported
0
Deaths

Safety recalls (0)

No recalls on record for this model year (campaigns announced since 2010).

Service bulletins (921)

Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.

Unknown Or Other 2025-09-09 · 13598 · Other

new vehicle monitoring programs section in ivh

Unknown Or Other 2025-08-07 · PIC5650M · Service Bulletin/Repair Instructions

this preliminary information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. technician may find diagnostic trouble codes b3055, b3060, b3935, c0750, c0755, c0760, c0765, and/o

Unknown Or Other 2025-07-18 · PIP5601C · Service Bulletin/Repair Instructions

this pi communicates the requirement to provide a pico file to receive diagnostic assistance from tac.

Unknown Or Other 2025-05-30 · PIT5074R · Service Bulletin/Repair Instructions

this preliminary information communication provides information to the technician about the use of j-35616-64b and mini 50 terminal test probe, replacement terminals, and terminated leads.

Unknown Or Other 2025-05-30 · PIT5074R · Service Bulletin/Repair Instructions

this preliminary information communication provides information to the technician about the use of j-35616-64b and mini 50 terminal test probe, replacement terminals, and terminated leads.

Unknown Or Other 2025-05-30 · PIT5074R · Service Bulletin/Repair Instructions

this preliminary information communication provides information to the technician about the use of j-35616-64b and mini 50 terminal test probe, replacement terminals, and terminated leads.

Showing the 6 most recent of 921 bulletins. Search all of them free at nhtsa.gov.

What owners report

2026-05-14 · Seat Belts

“both side curtain airbags deployed while driving down the street. the driver's seatbelt tightened then locked up. there was no obvious reason for the airbags to deploy. the vehicle was taken to a chevy dealer to see if it was on recall list but they said it was not. vehicle was referred to a body shop for estimate for repairs...$6,435.00....if you …”

2024-01-09 · Unknown Or Other

“frame rotting out - has rot holes - unsafe - remainder of truck is good but without a solid structure this truck is unsafe and useless. many trailblazer frames do not last and rot out from what i've been researching. bad product gm.…”

2022-06-21 · Electrical System · 206,000 mi · 🔥 fire

“the contact owns a 2008 chevrolet trailblazer. the contact stated that while parked in her driveway, the passenger side door caught fire without warning. the fire occurred overnight and in the morning, the contact and her boyfriend discovered both her passenger side door and front passenger seat melted. the contact believed that the fire smoldered …”

2022-06-21 · Engine

“i was driving on the highway just reaching 55 mph, that is when all of a sudden, my suv stalled out with no warning no sound nothing. i tried to restart it and sounded as if it was trying to start but wouldn't. after a couple of times of trying that is when a tow truck came and as he was putting my suv on the flat bed i noticed huge amount oil on t…”

2021-08-14 · Unknown Or Other

“i was just sitting in a drive thru and my passenger side window just started smoking and now it will not go down.…”

2021-07-22 · Exterior Lighting

“while driving home at approximately 9:30pm, my eighteen year old daughter experienced the headlights failing to come on after dark with the automatic headlight-on feature. she turned on the headlights manually, and the low beams still were not working, but all driving lights and high beam headlights were working. i assumed that the bulbs were burne…”

2021-03-22 · Vehicle Speed Control · 210,702 mi

“the check engine light came on, my gas tank needle went down to empty on a full tank of gas and will not come back up, and it stalls. while i was driving.…”

2021-02-22 · Engine · 128,000 mi

“the exhaust manifold in my 2008 chevy trailblazer has broken now three times. the chevy dealer has changed the manifold twice for free but now they no longer want to pay for it plus i asked if they have made a change to the cast iron manifold and they tell me the part number changed in 2011 but my failures have occurred since then so i know the rep…”

2020-12-06 · Seat Belts · 160,000 mi · 💥 crash

“yes i was driving on the 65 miles an hour in the passenger lane are carpool lane all the sudden for no reason both curtain airbags just deployed i had my head right next to knock me out cold i didn't proceed over and hit the wall 21 times just skip down in when i came to i thought i was i thought it and other vehicles likely that was not the case d…”

2020-11-26 · Exterior Lighting · 150,000 mi

“dim headlights quit working while driving at night. bright lights worked, but no dims.…”

Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.

Other Chevrolet Trailblazer years