I HAVE ENCOUNTERED A PROBLEM WITH THE SPEEDOMETER NOT WORKING PROPERLY OR NOT WORKING AT ALL IN SOME CASES, SOMETIMES GET STUCK AT A CERTAIN SPEED
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.
Electrical System complaints
101 reportsI HAVE A 2005 CHEVROLET TRAILBLAZER EXT. COUPLE MONTHS AGO THE SPEEDOMETER STARTED ACTING UP, I WILL BE DRIVING AND IT WILL STOP READING MY SPEED AND GOING DOWN TO 0, IT WILL GET BACK TO NORMAL AFTER I TURN OFF THE CAR AND TURN IT BACK ON, DID THAT COUPLE TIMES, NOT VERY OFTEN, THEN STARTED GETTING STUCK ON WHATEVER SPEED I WAS …
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I HAVE A 2005 CHEVROLET TRAILBLAZER EXT. COUPLE MONTHS AGO THE SPEEDOMETER STARTED ACTING UP, I WILL BE DRIVING AND IT WILL STOP READING MY SPEED AND GOING DOWN TO 0, IT WILL GET BACK TO NORMAL AFTER I TURN OFF THE CAR AND TURN IT BACK ON, DID THAT COUPLE TIMES, NOT VERY OFTEN, THEN STARTED GETTING STUCK ON WHATEVER SPEED I WAS GOING, AND DIDN'T MATTER IF WAS SLOWING DOWN OR GOING FASTER, WILL STAY AT THAT SPEED ON THE SPEEDOMETER, COUPLE DAYS AGO STARTED TO GO NUTS, NOW WHEN I AM STOPPED READS I AM AT 20 OR 30 MPH, AND WHEN I AM GOING 30 OR 40 STARTS GOING UP AND DOWN, MARKING 100 MPH WHEN I AM ACTUALLY GOING JUST 40 MPH, I HAVE READ SEVERAL COMPLAINTS ABOUT THIS PROBLEM WITH THIS SAME VEHICLE, A RECALL WAS ISSUED FOR OLDER MODELS, BUT NOTHING FOR THE 2005, I DON'T HAVE THE MONEY TO FIX IT RIGHT NOW, AND I HAVE TO USE MY GPS UNIT TO KNOW HOW FAST I AM GOING, AND AVOID GETTING PULL OVER OR CAUSE AN ACCIDENT, BUT I AM NOT THE ONLY ONE WITH THIS PROBLEM, I WILL LIKE TO HAVE CHEVROLET TAKE OWNERSHIP OF THE PROBLEM, IT IS A SAFETY ISSUE, AND IS CLEARLY A CHEVY ISSUE NOT A CONSUMER ONE, WE PAID FOR A PRODUCT THAT SUPPOSED TO WORK PROPERLY AND IT IS NOT. *TR
SPEEDOMETER QUIT WORKING, FIRST 70MPH THEN 90 THEN 120 , IT STARTED BOUNCING AROUND ALL OVER THE PLACE. NOW IT HAS QUIT WORKING ALL TOGETHER. I BELIEVE THIS IS A MAJOR SAFTY ISSUE. I HAVE CHECKED INTO IT AND THOUSANDS OF PEOPLE ARE EXPERIENCING THE SAME ISSUES. THIS IS MY WIFE DAILY DRIVER AND SHE TRANSPORTS MY KIDS IN THIS VEHI…
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SPEEDOMETER QUIT WORKING, FIRST 70MPH THEN 90 THEN 120 , IT STARTED BOUNCING AROUND ALL OVER THE PLACE. NOW IT HAS QUIT WORKING ALL TOGETHER. I BELIEVE THIS IS A MAJOR SAFTY ISSUE. I HAVE CHECKED INTO IT AND THOUSANDS OF PEOPLE ARE EXPERIENCING THE SAME ISSUES. THIS IS MY WIFE DAILY DRIVER AND SHE TRANSPORTS MY KIDS IN THIS VEHICLE. CHEVY NEEDS TO MAN UP AND ADDRESS THIS ISSUE. *TR
2005 CHEVY TRAILBLAZER ACTUALLY MY PROBLEM STARTED ABOUT 2YRS AGO WHEN MY GAS GAUGE WENT OUT. THEN YEAR LATER I WAS SITTING IN TRAFFIC AND ONCE I GOT BACK UP TO SPEED MY SPEEDOMETER WENT OUT AND QUIT WORKIN. IT WOULD JUMP AROUND AND THEN SOMETIMES APPEAR TO BE READING CORRECTLY THEN JUMP TO ZERO OR WAY OVER PAST 90 WHICH OF COU…
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2005 CHEVY TRAILBLAZER ACTUALLY MY PROBLEM STARTED ABOUT 2YRS AGO WHEN MY GAS GAUGE WENT OUT. THEN YEAR LATER I WAS SITTING IN TRAFFIC AND ONCE I GOT BACK UP TO SPEED MY SPEEDOMETER WENT OUT AND QUIT WORKIN. IT WOULD JUMP AROUND AND THEN SOMETIMES APPEAR TO BE READING CORRECTLY THEN JUMP TO ZERO OR WAY OVER PAST 90 WHICH OF COURSE I WAS NOT GOING THAT FAST. NOW MY OIL PRESSURE GAUGE AND TEMPERATURE GAUGE ARE GOING OUT AS WELL. AFTER CHECKING FOR RECALLS I SEE NOW THERE HAVE BEEN ALOT OF COMPLAINTS WITH THIS ISSUE IN THE SAME YEAR VEHICLE BUT NO RECALLS. IF THIS MANY VEHICLES ARE HAVING SIMILAR ISSUES WHY ISN'T CHEVY MAKING IT RIGHT? I KNOW MECHANICAL THINGS HAPPEN AFTER OWNING A VEHICLE BUT NOT THE SAME THING TO THIS MANY VEHICLES. *TR
PURCHASED THE 2005 TRAILBLAZER WITH 49,000 MILES. AT 50,000 MILES THE SPEEDOMETER STOPPED WORKING PROPERLY. WHEN I SLOWED DOWN FROM GOING 70 MILES PER HOUR, THE NEEDLE STAYED ON 70 AND WHEN I ACCELERATED IT WOULD ACT AS THOUGH 70 WAS THE NEW 0. NOW THE SPEEDOMETER POINTS DOWN PAST THE 120 MPH MARK AND WILL NOT BUDGE. GM TOLD …
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PURCHASED THE 2005 TRAILBLAZER WITH 49,000 MILES. AT 50,000 MILES THE SPEEDOMETER STOPPED WORKING PROPERLY. WHEN I SLOWED DOWN FROM GOING 70 MILES PER HOUR, THE NEEDLE STAYED ON 70 AND WHEN I ACCELERATED IT WOULD ACT AS THOUGH 70 WAS THE NEW 0. NOW THE SPEEDOMETER POINTS DOWN PAST THE 120 MPH MARK AND WILL NOT BUDGE. GM TOLD ME THAT IT NOT UNDER WARRANTY AND IT WILL COST OVER $500 TO FIX. *TR
OUR 2005 CHEVY TRAILBLAZER HAS A NON WORKING FUEL GAUGE AND SPEEDOMETER. WE HAVE 4 CHILDREN. 2 OF WHICH LIVE OUT OF STATE AND WE DRIVE BACK AND FORTH SEVERAL TIMES A MONTH FROM SC TO TN TO PICK THEM UP. WHEN THE FUEL GAUGE WENT OUT WE WERE ANNOYED BUT WE JUST TOP THE GAS TANK OFF OFTEN, BUT THE SPEEDOMETER THAT JUST STARTED S…
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OUR 2005 CHEVY TRAILBLAZER HAS A NON WORKING FUEL GAUGE AND SPEEDOMETER. WE HAVE 4 CHILDREN. 2 OF WHICH LIVE OUT OF STATE AND WE DRIVE BACK AND FORTH SEVERAL TIMES A MONTH FROM SC TO TN TO PICK THEM UP. WHEN THE FUEL GAUGE WENT OUT WE WERE ANNOYED BUT WE JUST TOP THE GAS TANK OFF OFTEN, BUT THE SPEEDOMETER THAT JUST STARTED STICKING WE HAVE NO IDEA HOW TO HANDLE. WE DON'T HAVE THE MONEY TO GET IT FIXED BUT WE TRAVEL SO MUCH FOR SUCH LONG DISTANCES THAT IT IS EXTREMELY DANGEROUS. WHEN RESEARCHING ONLINE I SEE THAT THIS IS A VERY COMMON PROBLEM YET CHEVY HAS NOT ISSUED A RECALL. IF CHEVY DOES NOT ISSUE A RECALL FOR THESE WE WILL NOT EVER TRUST CHEVY PRODUCTS AGAIN. THE SAFETY OF AMERICAN FAMILIES OBVIOUSLY DOES NOT MATTER TO THEM. ONLY OUR BAIL OUT MONEY. *TR
I OWN A 2005 TRAILBLAZER EXT AND THE SPEEDOMETER DOES NOT WORK. IT IS A CHRONIC PROBLEM ACCORDING TO RESEARCH THAT I HAVE CONDUCTED. IT IS A SAFETY ISSUE AS WELL. GM NEEDS TO TAKE RESPONSIBILITY AND RECALL THE INSTRUMENT CLUSTER. THE SPEEDOMETER FAILS EVERYTIME THAT I DRIVE IT. THE DEALERSHIP STATED THAT THE CLUSTER IS GOIN…
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I OWN A 2005 TRAILBLAZER EXT AND THE SPEEDOMETER DOES NOT WORK. IT IS A CHRONIC PROBLEM ACCORDING TO RESEARCH THAT I HAVE CONDUCTED. IT IS A SAFETY ISSUE AS WELL. GM NEEDS TO TAKE RESPONSIBILITY AND RECALL THE INSTRUMENT CLUSTER. THE SPEEDOMETER FAILS EVERYTIME THAT I DRIVE IT. THE DEALERSHIP STATED THAT THE CLUSTER IS GOING TO RUN ABOUT $400, WHICH DOES NOT INCLUDE LABOR. *TR
SPEEDOMETER GOES HAYWIRE, FIRST 150MPH THEN 40 THEN 60 , IT GOES ALL OVER THE PLACE. I BELIEVE THIS IS A MAJOR SAFETY ISSUE. I'VE CHECKED INTO IT AND THOUSANDS OF PEOPLE ARE EXPERIENCING THE SAME ISSUES. THIS IS MY WIFE DAILY DRIVER AND SHE TRANSPORTS MY KIDS IN THIS VEHICLE. *TR
SPEEDOMETER NOT READING PRPER SPEED. STAYS AT O SOMETIMES, AND THEN YOU COULD BE GOING 25, AND IT READS 75. *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…
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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
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.
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