THE DASH BOARD CLUSTER STOP WORKING SO THE AMOUNT OF GAS I PUT IN THE CAR DOES NOT SHOW HOW MUCH. THE SPEED OF THE CAR I CAN'T TELL HOW FAST I'M GOING. *KB
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
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.
Fuel System, Other complaints
16 reportsMY 2005 CHEVROLET TRAILBLAZER GAS GAUGE DOESN'T WORK PROPERLY. I NEVER KNOW HOW MUCH FUEL I HAVE IN MY TANK BECAUSE THE THE GAUGE GOES UP AND DOWN LIKE CRAZY. SOMETIMES WHEN I KNOW I HAVE LESS THAN HALF A TANK OF GAS DUE TO THE MILES I'VE DRIVEN IT SAYS THAT IT'S FULL. OTHER TIMES RIGHT AFTER A FILL UP IT WILL SAY THAT IT'S EMPT…
Read full complaint
MY 2005 CHEVROLET TRAILBLAZER GAS GAUGE DOESN'T WORK PROPERLY. I NEVER KNOW HOW MUCH FUEL I HAVE IN MY TANK BECAUSE THE THE GAUGE GOES UP AND DOWN LIKE CRAZY. SOMETIMES WHEN I KNOW I HAVE LESS THAN HALF A TANK OF GAS DUE TO THE MILES I'VE DRIVEN IT SAYS THAT IT'S FULL. OTHER TIMES RIGHT AFTER A FILL UP IT WILL SAY THAT IT'S EMPTY. *KB
I HAVE OWNED MY 2005 TRAILBLAZER EXT LS SINCE JANUARY 2005. IN AUGUST OF 05 I NOTICED MY GAS GAUGE GOING HAYWIRE.THEN I NOTICED MY SPEEDOMETER WASNT WORKING CORRECTLY ALSO AS SOON AS MY FUEL GAUGE STOPPED WORKING COMPLETELY MY SPEEDOMETER HAS BEEN FINE. MY FAN FOR HEAT AND SIR STOPPED WORKING SHORTLY AFTER THAT.I ALSO GO THROUGH…
Read full complaint
I HAVE OWNED MY 2005 TRAILBLAZER EXT LS SINCE JANUARY 2005. IN AUGUST OF 05 I NOTICED MY GAS GAUGE GOING HAYWIRE.THEN I NOTICED MY SPEEDOMETER WASNT WORKING CORRECTLY ALSO AS SOON AS MY FUEL GAUGE STOPPED WORKING COMPLETELY MY SPEEDOMETER HAS BEEN FINE. MY FAN FOR HEAT AND SIR STOPPED WORKING SHORTLY AFTER THAT.I ALSO GO THROUGH HEAD LIGHTS AND TAILLIGHT FREQUENTLY WHICH HAVE LEAD TO A FEW TICKETS. I LOVE MY TRAILBLAZER BUT I AM DISGUSTED THAT THERE HASNT BEEN RECALLS ON THESE OBVIOUS DEFECTS!!!! I WILL NOT BUY ANOTHER CHEVY. I FEEL THE COMPANY DOESNT CARE WEATHER THEY HAVE A TRUST WORTHY RELIABLE VEHICUL AS LONG AS THEY ARE MAKING MONEY!!!! *TT
A WEEK AGO, MY GAS GAUGE LIGHT CAME ON LIKE NORMAL INDICATING I NEEDED FUEL. I FILLED UP MY GAS TANK. WHEN I STARTED MY ENGINE, THE GAS GAUGE LIGHT WAS STILL ON AND THE GAS GAUGE INDICATED EMPTY. IN FACT, IT SHOWED LESS GAS THAN PRIOR TO THE FILL-UP. OVER THE WEEK, THE GAS GAUGE APPEARED TO CORRECT ITSELF. HOWEVER, I AGAIN …
Read full complaint
A WEEK AGO, MY GAS GAUGE LIGHT CAME ON LIKE NORMAL INDICATING I NEEDED FUEL. I FILLED UP MY GAS TANK. WHEN I STARTED MY ENGINE, THE GAS GAUGE LIGHT WAS STILL ON AND THE GAS GAUGE INDICATED EMPTY. IN FACT, IT SHOWED LESS GAS THAN PRIOR TO THE FILL-UP. OVER THE WEEK, THE GAS GAUGE APPEARED TO CORRECT ITSELF. HOWEVER, I AGAIN FILLED MY GAS TANK YESTERDAY BECAUSE MY GAS GAUGE INDICATOR WAS ON. ONCE AGAIN, THE LIGHT REMAINED ON AFTER FILLING MY TANK AND THE GAUGE SHOWED LESS GAS THAN PRIOR TO FILL UP. I AM VERY CONCERNED ABOUT THIS AS I COULD EASILY RUN OUT OF GAS WITHOUT REALIZING I NEEDED FUEL. I WILL BE MAKING A TRIP TO PARRIS ISLAND, SC IN AUGUST TO SEE MY DAUGHTER GRADUATE FROM THE US MARINE CORPS BASIC TRAINING PROGRAM. THAT IS A 16 HOUR DRIVE, ONE WAY. IF I CANNOT GAUGE THE AMOUNT OF FUEL I HAVE FOR THE TRIP, MY FAMILY COULD BE STRANDED IN THE MIDDLE OF NOWHERE. I HEARD ABOUT THE POSSIBLE RECALL DUE TO THIS INVESTIGATION; THEREFORE, I HAVE NOT TRIED TO REPAIR OR REPLACE THE VEHICLE AT THIS POINT. *TR
OUR GAS GAUGE QUIT WORKING ON OUR 2005 CHEVROLET TRAILBLAZER. WE HAD WARRANTY ON THE SUV BUT IT FAILED JUST OUT OF WARRANTY. THE ESTIMATED COST TO FIX IT WAS NOT IN OUR BUDGET. WE HAVE TO TRACK OUR MILEAGE AFTER EACH FILL-UP. MY SON RAN OUT OF GAS ONE TIME AS A RESULT OF THE BAD GAUGE. *TR
I HAVE HAD THE FOLLOWING PROBLEMS WITH MY 2005 CHEVY TRAILBLAZER EXT LS: 2008: FUEL SENSOR FAILURE, RUNNING BOARD FELL OFF 2009: HEAD AND TAIL LIGHTS GOING OUT FREQUENTLY, WINDOWS WOULD GET STUCK- COULD NOT GO UP OR DOWN- ALL DASH LIGHTS FLASHING, CAR STALLING OUT- NEEDED CIRCUIT BOARD REPLACED. ANTI-THEFT NON-FUNCTIONING. 2…
Read full complaint
I HAVE HAD THE FOLLOWING PROBLEMS WITH MY 2005 CHEVY TRAILBLAZER EXT LS: 2008: FUEL SENSOR FAILURE, RUNNING BOARD FELL OFF 2009: HEAD AND TAIL LIGHTS GOING OUT FREQUENTLY, WINDOWS WOULD GET STUCK- COULD NOT GO UP OR DOWN- ALL DASH LIGHTS FLASHING, CAR STALLING OUT- NEEDED CIRCUIT BOARD REPLACED. ANTI-THEFT NON-FUNCTIONING. 2010:WINDSHIELD WIPERS WILL NOT SHUT OFF(REPLACED DISPLAY BOARD), IDLE PULLEY NEEDS TO BE REPLACED , 4X4 RUNNING ROUGH AND MAKING A SOUND,SPEEDOMETER NON-FUNCTIONING, RADIO STOPPED WORKING,GLOVE BOX LOCK BROKE, HEAT/AC STOPPED WORKING FIRST ON BLOWERS 4& 5 THEN STOPPED COMPLETELY I HAVE NOT BEEN ABLE TO AFFORD TO FIX ALL THESE REPAIRS, AS IT EXCEEDS $2,000. CAR IS OVER WARRANTY AND WAS BROUGHT USED FROM A FORMER GM DEALER AT UNDER 50K. I CONTACTED GM IN NOVEMBER 2010 AND THEY STATED THAT THEY MY VEHICLE WAS OUT OF WARRANTY AND THEY COULD NOT ASSIST ME. GM INITIATED CONTACT IN DECEMBER OF 2010 AND TOLD ME TO GET A FULL DIAGNOSIS OF THE PROBLEMS AND STATED THAT IT WAS OK TO GO TO THE FORMER GM DEALER. I PAID OVER $100 FOR THIS DIAGNOSIS AND THEY STATED THAT MY VEHICLE WAS OUT OF WARRANTY AND THEY CANNOT PROVIDE ANY ASSISTANCE WHATSOEVER. *TR
AS YOU CAN SEE FROM BELOW THE COMPLAINT, SEEMS I GOT A CALL FROM NIKKI AT GM OR CHEVY AND THEY STATED I NEED TO BRING VEHICLE IN, PAY FOR THE DIAGNOSTIC AND THEN MAYBE THEY CAN DECIDE ON WHAT TO DO, I BELIEVE THIS ISSUE HAS GONE ON FOR 5 YEARS NOW AND THEY SHOULD BE CHECKING TO SEE WHAT THE ISSUE IS...COULD BE FAULTY WIRING, WHI…
Read full complaint
AS YOU CAN SEE FROM BELOW THE COMPLAINT, SEEMS I GOT A CALL FROM NIKKI AT GM OR CHEVY AND THEY STATED I NEED TO BRING VEHICLE IN, PAY FOR THE DIAGNOSTIC AND THEN MAYBE THEY CAN DECIDE ON WHAT TO DO, I BELIEVE THIS ISSUE HAS GONE ON FOR 5 YEARS NOW AND THEY SHOULD BE CHECKING TO SEE WHAT THE ISSUE IS...COULD BE FAULTY WIRING, WHICH CAN LEAD TO A FIRE, SAFETY ISSUE, COULD BE A FALSE WARNING OR WORSE A REAL WARNING, AS YOU CAN SEE IN THE LINK I ENCLOSED TO THEM, MANY PEOPLE PAYING BIG DOLLARS TO NOT HAVE THIS ISSUE RESOLVED, HOW LONG DOES THIS GO ON, I AM HOPING YOU GUYS CAN STEP IN FOR US AND HOPEFULLY LIGHT A FIRE AND GET GM AND CHEVY TO FINALLY LOOK INTO THIS MATTER..THEY ARE GOOD ABOUT CRYING NO SALES AND NEED THE INFRACTION FROM THE GOV TO STAY AFLOAT, SEEMS THE BIG WIGS JUST NEEDED THEIR WALLETS FATTENED, BECAUSE THEY IS NO CONCERN OR WORRIES ABOUT A SAFETY ISSUE, EVEN THE GAUGES ARE NOT WORKING, CAN YOU PLEASE HELP US OUT, [XXX] NAME:[XXX] EMAIL ADDRESS: [XXX] ADDRESS: [XXX] DAY PHONE: ()-- EX EVENING PHONE: [XXX]EX COMMENTS: I HAVE MY CHECK ENGINE LIGHT ON, CAN'T SEEM TO FIGURE WHAT IS THE PROBLEM ON MY 2005 TRAILBLAZER, WENT TO THIS SITE HTTP://WWW.CARCOMPLAINTS.COM/CHEVROLET/TRAILBLAZER/2005/ELECTRICAL/CHECK ENGINE LIGHT IS ON.SHTML AND LOW AND BEHOLD, I AM NOT ALONE ...ARE YOU GUYS GOING TO HELP US WITH THIS PROBLEM, AT LEAST TELL US WHY THIS LIGHT GOES ON, PLEASE, IT CAN COST THOUSANDS TO FIX BUT NEVER HAVE IT FIXED, EVEN MY BATTERY GAUGE HAS SEEMED TO DIE, AND THE GAS GAUGE SEEMS TO FLEX ON IT'S ON ALSO, AS YOU CAN SEE SOME PEOPLE ARE JUST LEAVING CHEVY BEHIND, HOW ABOUT SOME HELP, YOU GUYS USED TO BE GOOD, WHAT HAPPENED, I BELIEVE THIS NEEDS A RECALL TO FIX THIS ISSUE...[XXX] VEHICLE CONCERN INFO: NATURE OF CONCERN: VEHICLE MODEL: YEAR: 2005 VIN NUMBER:[XXX] MILEAGE: 800051 ALLOW PHONE CONTACT: YES BEST TIME FOR PHONE CONTACT: PM. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
GAS GAUGE AND SPEEDOMETER DOES NOT WORK ON A 2005 TRAILBLAZER. I HAVE SEEN MANY COMPLAINTS ON THIS. *TR
LAST NIGHT (11/01/2010) I WENT TO FILL MY GAS TANK. IT SHOWED I HAD 1/4 TANK FULL. I ADDED $50.00 OF GASOLINE AT $2.52/GAL. THAT SHOULD'VE BEEN MORE THAN ENOUGH. I TURNED THE CAR ON AND IT CREPT TO 1/2 TANK. I FIGURED IT'D TAKE A FEW SECONDS....WRONG!!!! AS I CONTINUED TO DRIVE, IT CREPT DOWN TO 1/4 TANK AGAIN AND STAYED TH…
Read full complaint
LAST NIGHT (11/01/2010) I WENT TO FILL MY GAS TANK. IT SHOWED I HAD 1/4 TANK FULL. I ADDED $50.00 OF GASOLINE AT $2.52/GAL. THAT SHOULD'VE BEEN MORE THAN ENOUGH. I TURNED THE CAR ON AND IT CREPT TO 1/2 TANK. I FIGURED IT'D TAKE A FEW SECONDS....WRONG!!!! AS I CONTINUED TO DRIVE, IT CREPT DOWN TO 1/4 TANK AGAIN AND STAYED THERE. I MADE IT TO MY FIRST DESTINATION AND ASKED THE KIDS TO GET DOWN AND LOOK UNDER THE CAR AND SEE IF THERE WAS ANYTHING, ANYWHERE LEAKING. NOTHING. I TURNED THE CAR OFF AND TURNED IT BACK ON. THE FUEL GAUGE STARTED TO SWIFTLY RISE AND MADE IT TO 3/4 OF A TANK WHEN IT SUDDENLY DROPPED TO EMPTY WHERE IT STAYED. CHIMES ARE GOING OFF THAT I HAVE NO GAS. I SHUT THE CAR OFF AGAIN AND RESTARTED IT. GAUGE ROSE TO ONLY 1/4 TANK. I DROVE HOME. THIS MORNING, I STARTED THE CAR AND IT ROSE TO 3/4 TANK AND STAYED THAT WAY ALL THE WAY TO WORK (15 MIN. RIDE). THIS HAS NEVER HAPPENED TO ME BEFORE. I CAME ONLINE TRYING TO MAKE SENSE OF WHAT MAY BE HAPPENING AND SEEMS LIKE THIS IS A FAIRLY COMMON PHENOMENON EVEN THOUGH GM REFUSES TO DO ANYTHING ABOUT THIS. MY CAR IS ONLY 5 YRS OLD AND HAS 62,000 MILES ON IT. IT IS BARELY BROKEN IN AND IT SHOULD DEFINITELY NOT BE HAVING THESE KINDS OF ISSUES ALREADY. *TR
STARTED WITH THE SERVICE AIR BAG MESSAGE (KNOWN ISSUE). THEN THE FUEL GAUGE ACTED UP AND FINALLY WENT TO E AND STAYED. NOW HAVE AND OCCASIONAL SURGE IN THE FUEL WHEN I HAVE THE BRAKE PRESSED (KNOWN ISSUES). SPEEDOMETER STARTING ACTING UP AND NO LONGER WORKS (KNOWN ISSUE). OH AND THE CHECK ENGINE LIGHT IS NOW ALWAYS ON. START…
Read full complaint
STARTED WITH THE SERVICE AIR BAG MESSAGE (KNOWN ISSUE). THEN THE FUEL GAUGE ACTED UP AND FINALLY WENT TO E AND STAYED. NOW HAVE AND OCCASIONAL SURGE IN THE FUEL WHEN I HAVE THE BRAKE PRESSED (KNOWN ISSUES). SPEEDOMETER STARTING ACTING UP AND NO LONGER WORKS (KNOWN ISSUE). OH AND THE CHECK ENGINE LIGHT IS NOW ALWAYS ON. STARTED INTERMITTENTLY (AGAIN, KNOWN ISSUE). WAS TOLD $500 FROM DEALER WHEN I CALLED TO REPORT THE SERVICE AIR BAG MESSAGE. RECALL SHOULD APPLY TO THIS VEHICLE, I DON'T KNOW WHAT THE VEHICLE WENT THROUGH BEFORE I PURCHASED IT. CLOTH SEATS/LEATHER SEATS, THE SERVICE AIR BAG "SENSOR" IS STILL BROKE! DON'T HAVE THE MONEY TO FIX ALL THE "KNOWN" PROBLEMS. *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.
Illustration