2006 Chevrolet Trailblazer Ext 370 problems, complaints & recalls
Most-reported problem areas: Exterior Lighting (4) · Fuel System, Gasoline (2) · Electrical System (2)
🧭 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 (130)
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 130 bulletins. Search all of them free at nhtsa.gov.
What owners report
2017-05-01 · Exterior Lighting · 120,000 mi“while driving on a smooth hi-way (no vibrations) the low beam headlights went off. i switched to hi beams and pulled off the road at first opportunity. when i switched back to low beams and they worked perfectly. this has happened 4 times in the 11 years of ownership, twice in one week. could never induce the problem.…”
2017-03-30 · Electronic Stability Control (Esc) · 35 mi“i was driving on the and right in the middle of traffic and the car just shut off . i try to restart and it start up when i try to proceed it shut off and would not start back up at all.…”
2016-07-21 · Structure:body · 144,000 mi · 🔥 fire“driving on freeway at a cruise control speed of 70 mph without any warning lights or malfunctions with the truck, white smoke was noted from behind the truck. smoke immediately became worse and truck was pulled off on side of road. smoke was noted coming from under front hood as well. driver then saw flames coming up driver side window. driver…”
2016-02-24 · Visibility/Wiper“tl* the contact owns a 2006 chevrolet trailblazer ext 370. the contact received notification of nhtsa campaign number: 14v755000 (visibility) and stated that the part was not available within a reasonable time frame to schedule the recall repair. the dealer did not give a specific date for when the part would become available. the manufacturer cou…”
2016-01-04 · Exterior Lighting · 125,000 mi“tl* the contact owns a 2006 chevrolet trailblazer ext 370. the contact stated that while driving approximately 35 mph, the headlights became inoperable without warning. the vehicle was taken to the dealer where the contact was informed that the hdm module needed to be replaced. the vehicle was repaired however, the failure recurred. the contact men…”
2015-11-18 · Exterior Lighting · 126,000 mi“tl* the contact owns a 2006 chevrolet trailblazer ext 370. while the vehicle was stopped at a red light, the headlights failed to illuminate. the failure recurred twice. the vehicle was taken to an independent mechanic where it was not diagnosed or repaired. the manufacturer was made aware of the failure. the failure mileage was approximately 126,0…”
2015-09-28 · Engine · 110,000 mi“tl* the contact owns a 2006 chevrolet trailblazer ext 370. the contact stated that nhtsa campaign number: 14v755000 (exterior lighting) exceeded a reasonable amount of time for repair. the dealer stated that parts were unavailable for the repair. the manufacturer was made aware of the delay and stated that the remedy was not available. the vehicle …”
2015-09-22 · Electrical System · 71,800 mi“tl* the contact owns a 2006 chevrolet trailblazer ext 370. while operating the vehicle, the fuel gauge would erroneously indicate that the fuel tank was empty. after restarting the vehicle, the fuel gauge would provide an accurate fuel reading before displaying empty again. the vehicle was not diagnosed or repaired. the manufacturer was not notifie…”
2015-04-15 · Engine And Engine Cooling“driving on the highway traveling about 60. when all of a sudden my truck shut down, thought my foot had got off the peddle but was still on the gas. put my hazards on and prayed i wasn't going to get smashed by traffic. then my check engine light came on. and the second engine light came on. as i pull to side of road stop the car put it in park. a…”
2015-03-20 · Fuel/Propulsion System · 113,762 mi“tl* the contact owns a 2006 chevrolet trailblazer ext 370. while driving at various speeds and while idling, the fuel gauge fluctuated from empty to full continuously and the check engine warning indicator illuminated. the failure recurred numerous times. the vehicle was taken to a dealer. the technician diagnosed that the fuel level sensor failed …”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.