2002 Chevrolet Trailblazer Ext 370 problems, complaints & recalls
Most-reported problem areas: Steering (1) · Power Train:automatic Transmission (1) · Fuel/Propulsion System (1)
🧭 Reliability snapshot
Compared against other Chevrolet Trailblazer Ext 370 model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (0)
No recalls on record for this model year (campaigns announced since 2010).
Service bulletins (64)
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 2025-07-18 · PIP5601C · Service Bulletin/Repair Instructions
this pi communicates the requirement to provide a pico file to receive diagnostic assistance from tac.
Electrical System 2024-08-26 · General Communication · Service Campaign
vehicle wide programming (vwp) is a new process to update software on gm vehicles. it provides the ability via a single selection within techline connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). the updating of modules is com
Power Train 2024-07-24 · 24-NA-141 · Service Bulletin/Repair Instructions
gm is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. the damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. this bulletin advises the dealers to be more careful not to damage the transmissions durin
Fuel/Propulsion System 2024-06-28 · 16-NA-383 · Service Bulletin/Repair Instructions
this service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of 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.
Unknown Or Other 2024-06-17 · 18-NA-099 · Service Bulletin/Repair Instructions
this bulletin provides information for use on a product assistance claim (pac), which is formerly known as a product allegation resolution (par) claim.
Electrical System 2024-06-06 · 24-NA-098 · Service Bulletin/Repair Instructions
this service bulletin provides information for dealers/technicians on service programming system (sps) error codes e4398, e4399, e4401, e4403, m4404, m4413, m6954, m6955, e4414, e4423, e4491, e4492, or e6961 and resolution information.
Showing the 6 most recent of 64 bulletins. Search all of them free at nhtsa.gov.
What owners report
2014-12-04 · Steering · 120,000 mi · 💥 crash · 🔥 fire“i was slowing down as i was entering an intersection and there was traffic in front of me. i suddenly lost all power steering and power brakes and struck the car in front of me. none of the occupants of either vehicle was hurt, per police report. on my way to the collision center near home, the cab of the truck filled suddenly with very black smoke…”
2014-10-21 · Exterior Lighting · 120,000 mi“i was driving down the road and all of a sudden my headlights go completely out. no other lights went out i continuously flicked them back and forth and finally my bright lights works to get me home. next day they work fine again then 2 days later same thing happens. bulbs fuses all have been changed and no short found. so i look online and seems…”
2014-10-10 · Unknown Or Other · 204,000 mi“the `plate light don t work rear wiper dome light won t shut off auto door won t unlock with remote some time door locks auto with out hitting switch this scary all my dash lights come on but don t shut down car pull over an re starter it. *tr …”
2014-08-22 · Engine · 217,000 mi“while at the stop sign, my engine cut off. *tr…”
2013-02-03 · Fuel/Propulsion System · 96,853 mi“i have to put gas in slowly. if i squeeze the pump trigger to much the gas spits back out and all over me. i also have to hold the pump trigger upside down. the gas line on the vehicle was taken apart and everything was fine. *tr…”
2006-11-27 · Power Train:automatic Transmission · 75,100 mi“i have a 2002 trailblazer, the transmission just went out on it. i only have 75,000 mile and after doing some research have found out that i'm not the only one that has had this problem. just on goggle there are 97,100 hits for transmission problems with the trailblazer. *jb…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.