IllustrationSTOP IT STARTS JERKING AND CHECK ENGINE LIGHT FLASHS HEAD WENT BAD AT 109 THOSAND MILES
2005 Chevrolet Trailblazer Ext 370
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all Trailblazer Ext 370 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
100–25K
4025–50K
6550–75K
5475–100K
25100–150K
6150K+
200 reports with mileage · 37 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Electrical System. Review the 101 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Fuel System, Gasoline. Review the 67 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Exterior Lighting. Review the 15 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
7 crash reports1 fire reports7 injury reports
Fuel/propulsion System complaints
11 reportsTHE 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…
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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 VEHICLE?? AND IT ALSO TELLS ME THAT MY FUEL LEVEL IS LOW, EVEN AFTER I FILL MY TANK. THIS SEEMS LIKE A VERY COMMON PROBLEM IN THESE VEHICLES, WHY HAS IT NOT BEEN CONSIDERED A SAFETY ISSUE????
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.
MY 2005 CHEVY TRAILBLAZER EXT IS LEAKING GAS FROM THE GAS TANK UNDERNEATH THE VEHICLE WHEN THE SUV IS RUNNING.
ELECTRICAL ISSUES:VEHICLE DASHBOARD LIGHTS WILL SHOW DOOR GATE OPEN, DOOM LIGHTS WIL BE ON, RINGING BELL WHEN THE DOOR WOULD BE OPEN AND YET ITS ACTUALLY CLOSED, AS ALL CONTINUES TO GO AT ANY GIVEN TIME WHEN THE VEHICLE IS IN MOVEMENT. SPEED ODOMETER GAGE DOESN'T READ WHEN VEHICLE IS IN MOVEMENT AND THE GAS GAGE DOESN'T READ T…
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ELECTRICAL ISSUES:VEHICLE DASHBOARD LIGHTS WILL SHOW DOOR GATE OPEN, DOOM LIGHTS WIL BE ON, RINGING BELL WHEN THE DOOR WOULD BE OPEN AND YET ITS ACTUALLY CLOSED, AS ALL CONTINUES TO GO AT ANY GIVEN TIME WHEN THE VEHICLE IS IN MOVEMENT. SPEED ODOMETER GAGE DOESN'T READ WHEN VEHICLE IS IN MOVEMENT AND THE GAS GAGE DOESN'T READ THE CORRECT LEVEL OF SHOWING HOW MUCH GAS IS IN VEHICLE. THIS IS A BIG SAFETY ISSUES CAUSE IT HAS ME WORRIED OF NOT KNOWING HOW MUCH GAS I HAVE BEFORE IT RUNS OUT OF GAS RISKING MYSELF AND OTHERS BECAUSE VEHICLE ALL OF A SUDDENNESS LOSES SPEED AND SHUTS DOWN.
FUEL GAUGE HAS BEEN READY EMPTY FOR SEVERAL MONTHS. I LOOKED ON INTERNET TO SEE HOW TO FIX OR POSSIBLE PROBLEMS. I NOTICED THERE WAS A LETTER SENT YEARS AGO TO THE AFFECT THAT GM WOULD COVER HALF THE COST TO REPAIR, UP TO 10 YEARS IN SERVICE OR 100,000 MILES. WHEN I CONTACTED DEALER THE CAR WAS IN SERVICE 10 YEARS AND 2 WEEKS…
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FUEL GAUGE HAS BEEN READY EMPTY FOR SEVERAL MONTHS. I LOOKED ON INTERNET TO SEE HOW TO FIX OR POSSIBLE PROBLEMS. I NOTICED THERE WAS A LETTER SENT YEARS AGO TO THE AFFECT THAT GM WOULD COVER HALF THE COST TO REPAIR, UP TO 10 YEARS IN SERVICE OR 100,000 MILES. WHEN I CONTACTED DEALER THE CAR WAS IN SERVICE 10 YEARS AND 2 WEEKS AND HAS 84,000 MILES. I WAS INFORMED GM WILL NOT HELP COVER EXPENSE FOR REPAIR DO TO TIME IN SERVICE. I AM QUESTIONING IF THIS COULD BECOME A RECALL OR EXTENDED IN SERVICE DATING FOR THIS PROBLEM.
PASSENGER AIR BAG LIGHT NOT WORKING AND COMING ON WHEN NO PASSAGE. CHECK ENGINE LIGHT HAS BEEN ON SINCE 2006. SEAT BELTS IN 2ND ROW SEATING DON'T LOCK. RADIO BROKE 2006 REPLACED AFTER FIXED CD PLAYER WILL NOT PLAY OR EJECT. AIR CONDITIONER ONLY BLOWS OUT HOT AIR AFTER HUNDREDS DOLLARS TO FIX IT. BOTH HEAD LIGHTS BLOW OUT AT LEAS…
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PASSENGER AIR BAG LIGHT NOT WORKING AND COMING ON WHEN NO PASSAGE. CHECK ENGINE LIGHT HAS BEEN ON SINCE 2006. SEAT BELTS IN 2ND ROW SEATING DON'T LOCK. RADIO BROKE 2006 REPLACED AFTER FIXED CD PLAYER WILL NOT PLAY OR EJECT. AIR CONDITIONER ONLY BLOWS OUT HOT AIR AFTER HUNDREDS DOLLARS TO FIX IT. BOTH HEAD LIGHTS BLOW OUT AT LEAST EVERY 2 MONTHS THEY NEED REPLACED. DRIVERS SIDE BREAK LIGHT N TAIL LIGHT KEEP BLOWING WENT TO AUTO STORE GET MORE BULBS AND THE TAIL LIGHT CAUGHT ON FIRE EMPLOYEES HELPED ME AND SAID THEY SEEN THE TRAILBLAZERS DO IT BEFORE DUE TO WATER BUILDING UP IN IT AND THAT THAT'S THE REASON THE BULBS BLOW. PAID OUT 300$ IN TICKETS CUZ OF THEM BLOWING N NOT KNOWING. THE HOT AND COLD AIR IN SECOND ROW DON'T BLOW OUT AT ALL. A BIKE PARKED BY ME AND MY BACK WINDOW EXPLODED. WINDSHIELD VISION IS CLOUDY. GAS GAUGE, SPEED AD TEMP GAUGE STOPPED WORKING HAD REPLACED NOW BATTERY GAUGE BROKE. ONLY 1, AND 2 WORKED ON HEAT CONTROL AND 2 VENTS WORKED. BOTTOM OF BOTH SIDES OF CAR RUSTED 2 YEARS AGO. I HAD IT PAID OF IN 3 YEARS AND WISH THESE PROBLEMS WERE MADE AVAILABLE BEFORE I DID. I'VE ALREADY PUT THOUSANDS OF DOLLARS IN IT AND THE SAME THING BREAKS AGAIN AND WINDOWS IN FRONT BROKE TOO.MY BLAZER HAS BEE IN THE GARAGE SINCE JANUARY CUZ AS SOON AS MY HUSBANDS GETS IT OUT THE SHOP IT NEEDS TO GO RIGHT BACK AND WE CANT AFFORD TO FIX IT NOMORE I LOVE MY BLAZER AND DON'T WANT HIM SELLING IT OR TRADING IT IN S IF YOU HAVE ANY ADVICE THAT WOULD HELP PLEASE TELL ME. I'VE BEEN KEEPING IT HOPING TO GET IT FIXED AGAIN BUT I ALSO HAVE A DISABLED GRANDSON AND CUSTODY OF A 2 YEAR OLD THAT HAVE APTS N THERAPY 4 TIMES A WEEK AND NEED A CAR BUT I LOVE IT AND CANT PART WITH IT. PLEASE LET ME KNOW IF THERE A CERTAIN WAY TO FIX THESE PROBLEMS I CAN DO MYSELF SO I CAN KEEP IT..THANKS *TR
ENGINE LIGHT COMES ON WAS TOLD GAS SENSOR WAS DEFECTIVE COULD HARM ENGINE REC'D NOTIFICATION FROM GM TO REPAIR WOULD ONLY PAY HALF OF THE EXPENSE AFTER 3 MONTHS SAME ISSUE GM WOULD NOT PAY ANYTHING. *TR
GAS HAND DON'T WORK, TOLD NEED A FUEL SENSOR FOR 2005 CHEVY TRAILBLAZER EXT. *TR
VEHICLE HAS 145,000 MILES. THIS IS THE SECOND TIME THE DASHBOARD'S GAS GAUGE HAS STOPPED WORKING. FIRST TIME OCCURRED AROUND 50,000 MILES AND IT WAS REPLACED. *TR
Official recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
2PE11014 · Fuel Level Gauge System Failure
Opened Apr 25, 2011 · Closed Sep 23, 2011
Status: closed (inferred from source dates) · Fuel System, Other; Fuel System, Other:storage:fuel Gauge System
The office of defects investigations (ODI) analyzed complaint data provided by General Motors (GM) as well as complaints submitted to ODI from consumers.In total, there were 5,089 unique reports indicating an inaccurate fuel level reading while driving.General Motors stated that this condition occurs when the contacts of the fuel sensor wear prematurely.Most of the complaints indicated an empty fuel gauge reading after filling the tank.Less than 10 percent of theODI complaints involved an engine stall incident.During this investigation, GM developed a remedy procedure and issued special coverage bulletin instructing dealers to install a new design fuel level sensor.The bulletin was sent to dealers on August 10, 2011 and the owner letter mailing began on August 15, 2011.See the investigative file for copies of GM's bulletin and owner letter.This preliminary evaluation is closed.
Additional source detail variants (2)
Fuel System, Other
The office of defects investigations (ODI) analyzed complaint data provided by General Motors (GM) as well as complaints submitted to ODI from consumers.In total, there were 5,089 unique reports indicating an inaccurate fuel level reading while driving.General Motors stated that this condition occurs when the contacts of the fuel sensor wear prematurely.Most of the complaints indicated an empty fuel gauge reading after filling the tank.Less than 10 percent of theODI complaints involved an engine stall incident.During this investigation, GM developed a remedy procedure and issued special coverage bulletin instructing dealers to install a new design fuel level sensor.The bulletin was sent to dealers on August 10, 2011 and the owner letter mailing began on August 15, 2011.See the investigative file for copies of GM's bulletin and owner letter.This preliminary evaluation is closed.
Fuel System, Other:storage:fuel Gauge System
The office of defects investigations (ODI) analyzed complaint data provided by General Motors (GM) as well as complaints submitted to ODI from consumers.In total, there were 5,089 unique reports indicating an inaccurate fuel level reading while driving.General Motors stated that this condition occurs when the contacts of the fuel sensor wear prematurely.Most of the complaints indicated an empty fuel gauge reading after filling the tank.Less than 10 percent of theODI complaints involved an engine stall incident.During this investigation, GM developed a remedy procedure and issued special coverage bulletin instructing dealers to install a new design fuel level sensor.The bulletin was sent to dealers on August 10, 2011 and the owner letter mailing began on August 15, 2011.See the investigative file for copies of GM's bulletin and owner letter.This preliminary evaluation is closed.
DP10001 · Fuel Level Gauge System Failure
Opened Jan 7, 2010 · Closed May 23, 2011
Status: closed (inferred from source dates) · Fuel System, Other; Fuel System, Other:storage:fuel Gauge System
The Office of Defects Investigation has received 668 complaints alleging inaccurate fuel gauge reading while driving in model year 2005-07 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Saab 9-7x vehicles.Of the 668 complaints, 58 incidents were alleged to result in a vehicle stall.Of the 58 stalling incidents, 43 complaints reported stalling because the fuel level reading indicated more fuel availability than what is actually in the fuel tank. One complaint alleged a vehicle crash after the vehicle stalled while exiting the interstate, became disabled, and was struck from behind.Summarily, the complaints show an apparent increasing trend, with most complaints received within the past year.A Preliminary Evaluation has been opened to assess the scope, frequency and potential safety consequences associated with the alleged defect.
Additional source detail variants (2)
Fuel System, Other
The Office of Defects Investigation has received 668 complaints alleging inaccurate fuel gauge reading while driving in model year 2005-07 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Saab 9-7x vehicles.Of the 668 complaints, 58 incidents were alleged to result in a vehicle stall.Of the 58 stalling incidents, 43 complaints reported stalling because the fuel level reading indicated more fuel availability than what is actually in the fuel tank. One complaint alleged a vehicle crash after the vehicle stalled while exiting the interstate, became disabled, and was struck from behind.Summarily, the complaints show an apparent increasing trend, with most complaints received within the past year.A Preliminary Evaluation has been opened to assess the scope, frequency and potential safety consequences associated with the alleged defect.
Fuel System, Other:storage:fuel Gauge System
The Office of Defects Investigation has received 668 complaints alleging inaccurate fuel gauge reading while driving in model year 2005-07 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Saab 9-7x vehicles.Of the 668 complaints, 58 incidents were alleged to result in a vehicle stall.Of the 58 stalling incidents, 43 complaints reported stalling because the fuel level reading indicated more fuel availability than what is actually in the fuel tank. One complaint alleged a vehicle crash after the vehicle stalled while exiting the interstate, became disabled, and was struck from behind.Summarily, the complaints show an apparent increasing trend, with most complaints received within the past year.A Preliminary Evaluation has been opened to assess the scope, frequency and potential safety consequences associated with the alleged defect.