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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.

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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.

7 crash reports1 fire reports7 injury reports

Electrical System complaints

101 reports
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79,150 miles · Oct 31, 2010
Electrical System

SPEEDOMETER QUIT WORKING ON MY 2005 CHEVY TRAILBLAZER AS I WAS ON THE HIGHWAY (I-75). AT FIRST IT WAS READING 20 TO 55 MILES PER HOUR FASTER THAN I WAS ACTUALLY GOING AND AN HOUR LATER IT QUIT ALL TOGETHER. AT THIS TIME IT DOES NOT SHOE A READING AT ALL. VERY HARD TO DETERMINE SPEED WITHOUT A SPEEDOMETER IN HEAVY TRAFFIC AND …

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SPEEDOMETER QUIT WORKING ON MY 2005 CHEVY TRAILBLAZER AS I WAS ON THE HIGHWAY (I-75). AT FIRST IT WAS READING 20 TO 55 MILES PER HOUR FASTER THAN I WAS ACTUALLY GOING AND AN HOUR LATER IT QUIT ALL TOGETHER. AT THIS TIME IT DOES NOT SHOE A READING AT ALL. VERY HARD TO DETERMINE SPEED WITHOUT A SPEEDOMETER IN HEAVY TRAFFIC AND CREATES A HAZARD TO OTHER DRIVERS AND MYSELF. *TR

NHTSA ODI #10363436

85,000 miles · Oct 8, 2010
Electrical System

MY SPEEDOMETER STOPPED WORKING AROUND SIX MONTHS AGO AND NOW THE OIL LEVEL GAUGE HAS STOPPED WORKING. FROM WHAT I'VE BEEN READING IT IS ONLY A MATTER OF TIME BEFORE THE FUEL GAUGE GOES OUT. THIS IS ABSURD THAT THIS HASN'T BEEN RECALLED SINCE THERE ARE COUNTLESS COMPLAINTS CONCERNING THE INSTRUMENT PANEL. *TR

NHTSA ODI #10359682

70,000 miles · Sep 28, 2010
Air BagsElectrical SystemFuel System, Other

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…

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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

NHTSA ODI #10358081

75,000 miles · Sep 24, 2010
Electrical System

THE SPEEDOMETER STOPPED WORKING ONE RANDOM HOT DAY. THERE WERE NO RESULTING INJURIES, INCIDENCES OR CRASHES AS A RESULT. MY TRAILBLAZER HAS YET TO HAVE A RELIABLE DAY WHERE MY SPEEDOMETER WORKS CONTINUOUSLY. *TR

NHTSA ODI #10357379

49,000 miles · Aug 27, 2010
Electrical SystemExterior LightingFuel System, Other

I HAVE A 2005 CHEVROLET TRAILBLAZER LS EXT AND THE SPEEDOMETER, FUEL, AND BATTERY GAUGES DO NOT WORK PROPERLY. THERE IS A DIMMING OF THE LIGHTS WHILE DRIVING AND PEOPLE SOMETIMES THINK I AM FLASHING MY LIGHTS AT THEM. ACCORDING TO HTTP://FORUMS.TRAILVOY.COM/SHOWTHREAD.PHP?T=18419&HIGHLIGHT=GAS+GUAGE&PAGE=2 THIS HAS BEEN A KNOWN …

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I HAVE A 2005 CHEVROLET TRAILBLAZER LS EXT AND THE SPEEDOMETER, FUEL, AND BATTERY GAUGES DO NOT WORK PROPERLY. THERE IS A DIMMING OF THE LIGHTS WHILE DRIVING AND PEOPLE SOMETIMES THINK I AM FLASHING MY LIGHTS AT THEM. ACCORDING TO HTTP://FORUMS.TRAILVOY.COM/SHOWTHREAD.PHP?T=18419&HIGHLIGHT=GAS+GUAGE&PAGE=2 THIS HAS BEEN A KNOWN PROBLEM FOR SEVERAL YEARS AND NO ONE HAS DONE ANYTHING ABOUT IT. THERE ARE SEVERAL OTHER FORUMS OUT THERE THAT SAY THE SAME THING,THIS IS A MAJOR SAFETY HAZARD AND COULD CAUSE MAJOR PROBLEMS INCLUDING ACCIDENTS, SPEEDING TICKETS, RUNNING OUT OF GAS...THE PROBLEMS ARE ENDLESS I GUESS. SOMETHING NEEDS TO BE DONE. WHY HAS THERE NOT BEEN A RECALL ON THIS WITH SO MANY COMPLAINTS? ARE YOU WAITING FOR SOMETHING SERIOUS TO HAPPEN? *TR

NHTSA ODI #10352300

74,970 miles · Aug 15, 2010
Electrical System

2005 CHEVROLET TRAILBLAZER EXT SPEEDOMETER NOT WORKING. AT A STOP IT READS 50 MPH. *TR

NHTSA ODI #10349473

40,000 miles · Aug 15, 2010
Electrical System

MY 2005 TRAILBLAZER SPEEDOMETER STOPS WORKING. WHILE DRIVING THE SPEEDOMETER WILL READ 120 MPH OR MORE WHILE I AM ONLY DRIVING 70 MPH. I VERIFY MY SPEED THROUGH MY GARMIN GPS. THIS HAPPENS FOR NO RHYME OR REASON SOMETIMES IT WORKS FINE AND THE NEXT MINUTE IT IS BROKEN AGAIN. THIS IS EXTREMELY DANGEROUS AS I WAS TRAVELING 250 MIL…

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MY 2005 TRAILBLAZER SPEEDOMETER STOPS WORKING. WHILE DRIVING THE SPEEDOMETER WILL READ 120 MPH OR MORE WHILE I AM ONLY DRIVING 70 MPH. I VERIFY MY SPEED THROUGH MY GARMIN GPS. THIS HAPPENS FOR NO RHYME OR REASON SOMETIMES IT WORKS FINE AND THE NEXT MINUTE IT IS BROKEN AGAIN. THIS IS EXTREMELY DANGEROUS AS I WAS TRAVELING 250 MILES ON THE HIGHWAY AND THOUGHT I WAS TRAVELING AT 70 MPH BUT I WAS REALLY DOING 50. THE PROBLEM WAS THAT EVERYONE INCLUDING SEMI TRUCKS WHERE WHIZZING BY MY AND I COULDN'T FIGURE OUT WHY. THIS CAUSED ME TO BE ALMOST RUN OFF THE ROAD AS A SEMI ALMOST REAR ENDED ME AS HE SLAMMED HIS BRAKES ON. I HAVE NOT BEEN ABLE TO FIX THE PROBLEM YET AS GM WANTS 450 DOLLARS TO FIX A PROBLEM THAT SHOULD BE RECALLED. I HAVE READ HUNDREDS OF POSTS ONLINE ABOUT THIS EXACT PROBLEM ON 2005 TRAILBLAZERS. APPARENTLY THERE IS A RECALL ON OTHER GM VEHICLES WITH THIS SPEEDOMETER JUST NOT ON THE TRAILBLAZER. *TR

NHTSA ODI #10349425

83,000 miles · Aug 10, 2010
Electrical System

FUEL GAUGE FAILED. I RAN OUT OF GAS ON A VERY BUSY INTERSTATE WITH MY GRANDDAUGHTER IN THE CAR. THIS COULD HAVE BEEN A MAJOR ISSUE HAD I NOT BEEN ABLE TO GET OFF TO THE SIDE OF THE ROAD. IT SEEMS THIS IS A COMMON PROBLEM IN THE CHEVY TRAILBLAZER. I TOOK THE VEHICLE TO THE DEALER AND THEY DETERMINED IT WAS A FUEL SENSOR IN TH…

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FUEL GAUGE FAILED. I RAN OUT OF GAS ON A VERY BUSY INTERSTATE WITH MY GRANDDAUGHTER IN THE CAR. THIS COULD HAVE BEEN A MAJOR ISSUE HAD I NOT BEEN ABLE TO GET OFF TO THE SIDE OF THE ROAD. IT SEEMS THIS IS A COMMON PROBLEM IN THE CHEVY TRAILBLAZER. I TOOK THE VEHICLE TO THE DEALER AND THEY DETERMINED IT WAS A FUEL SENSOR IN THE FUEL TANK. THE REPAIRS COST ME ALMOST $300. *TR

NHTSA ODI #10348593

83,000 miles · Aug 10, 2010
Electrical System

SPEEDOMETER FAILS TO REGISTER PROPERLY SO YOU DON'T KNOW HOW FAST OR SLOW YOU ARE DRIVING; THIS COULD CAUSE SERIOUS INJURY WHEN DRIVING ON THE FREEWAY AND/OR UP/DOWN HILLS. WHEN IDLING, SPEEDOMETER WOULD SHOW FROM 60 TO 120 MPH; RESET OF SPEEDOMETER ONLY LASTED UNTIL NEXT ENGINE START. *TR

NHTSA ODI #10348592

67,000 miles · Aug 3, 2010
Electrical System

SPEEDOMETER ON MY 2005 CHEVY TRAILBLAZER EXT DOES NOT REGISTER ACCURATE SPEED. IT WILL WORK INTERMITTENTLYY ALTHOUGH HAS BEEN PROVEN TO NOT BE ACCURATE. IT WILL STICK AT ZERO OR AT 120 MPH AND GENERALLY GOES "HAYWIRE" WHILE IN MOTION ALTHOUGH IT DOES NOT SEEM TO MATTER IF IT IS HOT, COLD, WET OR DRY OUTSIDE AND DOES NOT MATTER…

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SPEEDOMETER ON MY 2005 CHEVY TRAILBLAZER EXT DOES NOT REGISTER ACCURATE SPEED. IT WILL WORK INTERMITTENTLYY ALTHOUGH HAS BEEN PROVEN TO NOT BE ACCURATE. IT WILL STICK AT ZERO OR AT 120 MPH AND GENERALLY GOES "HAYWIRE" WHILE IN MOTION ALTHOUGH IT DOES NOT SEEM TO MATTER IF IT IS HOT, COLD, WET OR DRY OUTSIDE AND DOES NOT MATTER IF I HAVE MY HEATER OR AIR CONDITIONER ON. SOMETIMES IT WILL RESET ITSELF AFTER I SHUT OFF THE VEHICLE BUT NOT ALWAYS. I HAVE NOT REPLACED ANY PARTS AT THIS TIME DUE TO THE COST INVOLVED. ($500.00) I HAVE RECEIVED A SPEEDING TICKET DUE TO THE INACCURACY OF THE SPEEDOMETER. (ONLY TICKET IN 16 YEARS!!!) I WAS UNABLE TO SPEAK WITH THE OFFICER ABOUT THE ISSUE BECAUSE I RECEIVED THE TICKET IN THE MAIL AND WOULD HAVE HAD TO TAKE TIME OFF WORK AND TRAVEL 2 HOURS TO CONTEST THE TICKET. I NEED THAT EXTRA MONEY TO PAY FOR THE REPAIR ON THE VEHICLE TO AVOID ANY FURTHER TICKETS! I HAVE OWNED THIS VEHICLE FOR 1.5 YEARS AND HAVE MINIMAL PROBLEMS UNTIL THIS. I LOVE MY BLAZER BUT REALLY NEED AN ACCURATE SPEEDOMETER. VEHICLE HAS 69,000 MILES ON IT. I HAVE PUT 20K+ MILES ON IT SINCE I HAVE OWNED IT. *TR

NHTSA ODI #10346969

Official recalls

0

No 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

2

PE11014 · 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.