IllustrationSPEEDOMETER NO LONGER WORKING ON MY MOTHER'S 2005 CHEVROLET TRAILBLAZER. VERY HAZARDOUS. AIR/HEAT WILL NOT BLOW IN THE FRONT VENTS AND DO NOT WORK ON SETTING NUMBER 5. *TR
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
Electrical System complaints
101 reports2005 CHEVY TRAILBLAZER HAS A PROBLEM WITH THE SPEEDOMETER READING INACCURATELY. THE READINGS ARE ERRATIC. *TR
THE SPEEDOMETER STARTED STICKING AND THEN IT GOT STUCK ON 160 MPH. IT WILL NOT MOVE. IT IS VERY DANGEROUS TO DRIVE THE VEHICLE BECAUSE YOU HAVE NO IDEA HOW FAST OR SLOW THAT YOU ARE GOING AND YOU POSE A RISK TO OTHERS AS WELL. CHEVROLET WOULD NOT COVER IT UNDER THEIR RECALL EVEN THOUGH THEY HAVE ALREADY RECALLED 2003-2004 TRAILB…
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THE SPEEDOMETER STARTED STICKING AND THEN IT GOT STUCK ON 160 MPH. IT WILL NOT MOVE. IT IS VERY DANGEROUS TO DRIVE THE VEHICLE BECAUSE YOU HAVE NO IDEA HOW FAST OR SLOW THAT YOU ARE GOING AND YOU POSE A RISK TO OTHERS AS WELL. CHEVROLET WOULD NOT COVER IT UNDER THEIR RECALL EVEN THOUGH THEY HAVE ALREADY RECALLED 2003-2004 TRAILBLAZERS FOR THE SAME PROBLEM. MY VEHICLE HAS 59000 MILES ON IT .THE REPAIR FOR THE INSTRUMENT PANEL CLUSTER WILL COST OVER 900 DOLLARS HERE IN GERMANY WHERE WE ARE STATIONED WITH THE US MILITARY. WE CAN NOT AFFORD TO REPAIR IT YET. *TR
GAS GAUGE FAILED AT 40,000 MILES. THE NEEDLE WILL NOT MOVE OFF OF "E". FOR A SHORT TIME IT WOULD ACTUALLY READ 1/4 FULL WHEN THE TANK WAS FULL NOW IT DOESN'T MOVE. THE WARNING DING GOES OFF PERIODICALLY. IN ADDITION TO THE GAS GAUGE PROBLEM THE BLOWER ON THE HEATER/AC NO LONGER WORKS ON THE HIGH SETTING. THIS CAR IS BARELY …
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GAS GAUGE FAILED AT 40,000 MILES. THE NEEDLE WILL NOT MOVE OFF OF "E". FOR A SHORT TIME IT WOULD ACTUALLY READ 1/4 FULL WHEN THE TANK WAS FULL NOW IT DOESN'T MOVE. THE WARNING DING GOES OFF PERIODICALLY. IN ADDITION TO THE GAS GAUGE PROBLEM THE BLOWER ON THE HEATER/AC NO LONGER WORKS ON THE HIGH SETTING. THIS CAR IS BARELY TWO YEARS OLD, THERE IS NO EXCUSE FOR POOR QUALITY IN AMERICAN MADE CAR'S! OF COURSE THESE ITEMS FAILED AFTER THE WARRANTY EXPIRED. AT 15,000 MILES THE ELECTRICAL COMPONENT THAT CONTROLS THE TURN SIGNALS FAILED. ENGAGED THE TURN SIGNAL TO TURN RIGHT AND THE LEFT TURN SIGNAL CAME ON.....OH WELL, AT LEAST THAT WAS UNDER WARRANTY. *TR
WINDOW SWITCH PANEL ON DRIVERS DOOR CAUGHT FIRE OVERNIGHT WHILE PARKED IN GARAGE. NO PROBLEMS BEFORE THIS EVENT. FUSE BLEW STOPPING THE ELECTRIC CURRENT AND THE FIRE BURNT OUT ON ITS OWN. I DISCOVERED THE DAMAGE IN THE MORNING AS I WAS GETTING IN THE VEHICLE TO DRIVE TO WORK. *TR
I PARKED THE 2005 TRAILBLAZER IN THE GARAGE AFTER A SHORT TRIP TO PICK UP A NEIGHBORS CHILD. TWO HOURS LATER WHEN I WENT TO START MY CAR TO TAKE THE CHILD HOME, MY KEY WOULD NOT TURN. STEERING WHEEL WAS NOT LOCKED ( IT COULD BE TURNED AND TURN THE WHEELS) TRANS WAS LOCKED. I READ ON ONLINE FORUMS THAT OTHERS HAVE HAD ISSUES …
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I PARKED THE 2005 TRAILBLAZER IN THE GARAGE AFTER A SHORT TRIP TO PICK UP A NEIGHBORS CHILD. TWO HOURS LATER WHEN I WENT TO START MY CAR TO TAKE THE CHILD HOME, MY KEY WOULD NOT TURN. STEERING WHEEL WAS NOT LOCKED ( IT COULD BE TURNED AND TURN THE WHEELS) TRANS WAS LOCKED. I READ ON ONLINE FORUMS THAT OTHERS HAVE HAD ISSUES LIKE THIS, ONE GUY SAID THAT HE WAS ABLE TO PULL BACK ON HIS SHIFTER AND TURN THE KEY AT THE SAME TIME. THIS DID NOT WORK FOR ME AS THE TRANS SHIFTER WAS LOCKED. RESULT, TOW, AND REPLACE SWITCH. *TR
2005 TRAILBLAZER. MIDDLE OF HIGH WAY ENGINE STOPPED AND INSTRUMENT PANEL WENT CRAZY. SOME TIME LATER IGNITION KEY WORKED AGAIN. I CHANGED BATTERY BUT IT HAPPENED AGAIN AND WHEN I TURNED THE IGNITION KEY TO START THE ENGINE, SOMETIMES IS WORK AND SOMETIMES ID DOESN'T. THE DEALER WANTED ME TO PAY FOR DIAGNOSIS FEE MY CAR IS 4…
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2005 TRAILBLAZER. MIDDLE OF HIGH WAY ENGINE STOPPED AND INSTRUMENT PANEL WENT CRAZY. SOME TIME LATER IGNITION KEY WORKED AGAIN. I CHANGED BATTERY BUT IT HAPPENED AGAIN AND WHEN I TURNED THE IGNITION KEY TO START THE ENGINE, SOMETIMES IS WORK AND SOMETIMES ID DOESN'T. THE DEALER WANTED ME TO PAY FOR DIAGNOSIS FEE MY CAR IS 46000 OUT OF WARRANTY AND AS I CHECK INTERNET FORUM SOME PEOPLE HAVE THE SAME TROUBLE AND DEALER COVERED THE MONEY HOW CAN I PROTECT MY FAMILY WITH THE ENGINE STOPPING IN MIDDLE OF HIGHWAY!!!!!!!! *JB
HEATER BLOWER IS GOING OUT, THEN GOES BACK ON IF I TOUCH THE WIRES GOING INTO THE MOTOR HOUSING. NOW THE SPEEDOMETER IS GOING WACKY. SHOWS 120 MPH NEVER GOES BACK TO ZERO. THIS IS AN ONGOING PROBLEM WITH GM PLEASE INVESTIGATE.*JB
I HAVE A 2005 CHEVY TRAILBLAZER THAT WHEN DRIVING AT TIMES THE LIGHTS GO BRIGHT AND THEM DIM WHEN ACCELERATING ALSO MAKES A NOISE FROM THE ENGINE, ALSO AFTER SITTING FOR THE WEEKEND WOULD HAVE TO JUMP START AND KEYS WOULD STAY LOCKED IN IGNITION I HAVE SEARCHED THE WEB FOR ANYONE HAVING SIMILAR PROBLEMS AND I AM GLAD TO SAY THAT…
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I HAVE A 2005 CHEVY TRAILBLAZER THAT WHEN DRIVING AT TIMES THE LIGHTS GO BRIGHT AND THEM DIM WHEN ACCELERATING ALSO MAKES A NOISE FROM THE ENGINE, ALSO AFTER SITTING FOR THE WEEKEND WOULD HAVE TO JUMP START AND KEYS WOULD STAY LOCKED IN IGNITION I HAVE SEARCHED THE WEB FOR ANYONE HAVING SIMILAR PROBLEMS AND I AM GLAD TO SAY THAT I AM NOT IMAGINING THIS, WHEN WE TOOK TO DEALER THEY COULD NOT FIND ANYTHING WRONG. PLEASE INVESTIGATE THIS PROBLEM I WILL ADD LINK TO WEB SITE OF FORUM WHERE OTHER PEOPLE ARE HAVING THE SAME PROBLEM WITH THIS VEHICLE. THIS IS A SAFETY RELATED ISSUE DUE TO DRIVING @ NIGHT WHEN THE LIGHTS GO DIM IS DANGEROUS, PLEASE HELP. HERE IS THE WEB SITE HTTP://WWW.TOPIX.NET/FORUM/AUTOS/CHEVROLET-TRAILBLAZER/TUCLLQK4UIF5NA0UT. *JB
VEHICLE SHOCKS ME & ALL OCCUPANTS ALMOST EVERY TIME WE EXIT THE VEHICLE. GM REFUSES TO ACKNOWLEDGE THERE IS A PROBLEM. I HAVE BEEN TO 3 DEALERS TO RESOLVE THE PROBLEM
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.