2005 Chevrolet Trailblazer Ext 370 problems, complaints & recalls
Most-reported problem areas: Fuel System, Gasoline (63) · Electrical System (45) · Electrical System: Instrument Cluster/Panel (28)
🧭 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 →
🛣️ Complaints by mileage
200 NHTSA complaints that reported an odometer reading.
Safety recalls (0)
No recalls on record for this model year (campaigns announced since 2010).
Service bulletins (133)
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.
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.
Unknown Or Other 2024-09-09 · 02-00-89-002X · Service Bulletin/Repair Instructions
this service bulletin provides information for dealers/technicians on when and how to submit a field product report (fpr) (u.s. and canada dealers only).
Unknown Or Other 2024-09-06 · PIT3271P · Service Bulletin/Repair Instructions
this preliminary information communication provides information to the technician about changing the tire and wheel size on vehicles. general motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. technician s
Showing the 6 most recent of 133 bulletins. Search all of them free at nhtsa.gov.
What owners report
2019-12-29 · Fuel/Propulsion System · 109,000 mi“stop it starts jerking and check engine light flashs head went bad at 109 thosand miles…”
2018-10-12 · Fuel/Propulsion System“the whole instrument cluster does not work anymore, does not let me know how fast i'm going or how much fuel i have, oil pressure gauge doesn't work, temperature gauge doesn't work... why hasn't this been recalled? this is very dangerous, considering i have 4 kids that are constantly in the car with me and i have no idea what is going on with my ve…”
2018-06-08 · Steering · 81,000 mi“i have 2005 chevrolet trailblazer 4wd ext ls 4.2 liter. i noticed over past 3 years that i be at drive through for burgers and etc. the car would cut off. i did not think much of it at the time. it has gotten critically worse. it would cut off in middle of the highway, drive throughs and etc. during the past two years i have re the luster and…”
2017-10-24 · Fuel/Propulsion System“i bought 2005 chevrolet trailblazer and the fuel gauge is defective. it is crazy to hear beep sounding all the time telling me the gauge is empty when i know for sure is not. i wish it could be fixed, because i have many others things in my plate that need to worry, i really don't need another one.…”
2017-09-09 · Exterior Lighting · 121,000 mi“driving 6 people to pittsburgh international airport at 3 am 8/5/17 on the parkway to catch a flight for a vacation when noticed low beam headlights were not working. do not know how long i was driving before this was noticed. low beams worked the evening of 8/12/17 @ 10 pm after returning to pittsburgh airport and driving home. low beams did not w…”
2017-07-13 · Electrical System · 750 mi“for the 3rd time the cluster has gone out. this results in the speedometer, temperature gauge and others to stop working. each time i am expected to take my vehicle to a chevrolet mechanic for diagnosis and part replacement at $700.00+ each time. this model has no recall. i am fed up with paying this much every 3-4 years for a defective part. …”
2017-03-16 · Electrical System“our 2005 chevy trailblazer speedometer stopped working. this has happened on many of these vehicles. it is a very expensive fix and it's a danger to drivers not knowing how fast they are traveling.…”
2016-12-28 · Fuel/Propulsion System · 140,000 mi“ my 2005 chevy trailblazer ext is leaking gas from the gas tank underneath the vehicle when the suv is running.…”
2016-02-17 · Unknown Or Other · 80,000 mi“my 05 trailblazer keeps shutting off while driving down a city street. in a 2-mile stretch it shut off 5 times with complete loss of steering control almost causing a serious accident. the vehicle trembled and then turned off. it has shut off on me while driving on three other occasions on previous years but it only occurred once and then stopped o…”
2016-01-25 · Exterior Lighting · 90,000 mi“there is already a recall out for the 2006 model year, but i know that mine is part of it. i have a 2005 trailblazer and the headlights keep intermittently going out as i am driving down the road. this problem as happened to me before in the past and i was able to finally remedy the issue by replacing the relay. the problem has now returned an…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.