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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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91,000 miles · Feb 1, 2010
Electrical System

I HAVE A 2005 CHEVY TRAIL BLAZER THE LIGHTS WOULD FLICKER AT NIGHT THOUGHT WAS BATTERY HAD IT CHECKED OUT THE BATTERY WAS BAD THAT WAS BACK IN SEPT. THEN AROUND JAN I AM DRIVING DOWN THE ROAD AND DOING 70 ON THE INTERSTATE AND MY SPEEDOMETER GOES FROM 70 TO 120 MPH AND THEN GOES DOWN TO NEUTRAL LIGHTS ARE FLICKING AGAIN AS …

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I HAVE A 2005 CHEVY TRAIL BLAZER THE LIGHTS WOULD FLICKER AT NIGHT THOUGHT WAS BATTERY HAD IT CHECKED OUT THE BATTERY WAS BAD THAT WAS BACK IN SEPT. THEN AROUND JAN I AM DRIVING DOWN THE ROAD AND DOING 70 ON THE INTERSTATE AND MY SPEEDOMETER GOES FROM 70 TO 120 MPH AND THEN GOES DOWN TO NEUTRAL LIGHTS ARE FLICKING AGAIN AS WELL AND BATTERY IS FINE. *TR

NHTSA ODI #10303521

Mileage unknown · Jan 28, 2010
Electrical System

SPEEDOMETER GAUGE IS MALFUNCTIONING. WHEN TRAVELING 65 MPH, THE SPEEDOMETER READS THAT I AM GOING FASTER THAN 120 MPH. WHEN I SHUT THE ENGINE OFF THE NEEDLE FALLS TO ABOUT 70 MPH. IN TOWN, THE SPEEDOMETER SHOWS AROUND 90 MPH. THERE IS NO WAY TO TELL HOW FAST I AM GOING. *TW

NHTSA ODI #10302964

75,000 miles · Jan 26, 2010
Electrical System

SPEEDOMETER QUIT WORKING. *TR

NHTSA ODI #10302440

122,000 miles · Jan 26, 2010
Electrical System

I HAVE A 2005 CHEVY TRAILBLAZER EXT. AS I WAS DRIVING TO WORK THIS MORNING I NOTICED THAT MY SPEEDOMETER KEPT INCREASING SPEED 80+ THEN FINALLY WENT TO 120 THEN DROPPED TO THE BOTTOM. IT STAYS AT THE BOTTOM OF THE METER SO IT DOESN'T READ ANYTHING. AS I'M GOOGLE THIS PROBLEM IT APPEARS THAT THIS SEEMS TO BE A COMMON HAPPENING…

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I HAVE A 2005 CHEVY TRAILBLAZER EXT. AS I WAS DRIVING TO WORK THIS MORNING I NOTICED THAT MY SPEEDOMETER KEPT INCREASING SPEED 80+ THEN FINALLY WENT TO 120 THEN DROPPED TO THE BOTTOM. IT STAYS AT THE BOTTOM OF THE METER SO IT DOESN'T READ ANYTHING. AS I'M GOOGLE THIS PROBLEM IT APPEARS THAT THIS SEEMS TO BE A COMMON HAPPENING. I CALLED THE DEALER AND THEY ARE LIKE THAT HAPPENS TO THOSE CARS ALL THE TIME BUT NO RECALL. THIS IS TERRIBLE WE (AMERICAN PEOPLE) JUST BAILED GM OUT AND NOW THEY HAVE THESE ISSUES WITH THEIR VEHICLES AND DON'T DO ANYTHING ABOUT THEM. THEY SHOULD BE MADE TO STAND BEHIND THEIR PRODUCTS. WHY BUY AMERICAN WHEN THEY TREAT YOU LIKE THIS??????????? *TR

NHTSA ODI #10302281

35,000 miles · Jan 16, 2010
Electrical System

2005 CHEVY TRAILBLAZER SPEEDOMETER QUIT WORKING. SOMETIMES READS 120MPH . CALLED DEALER-THEY SAID MANY HAVE SAME PROBLEM- CALLED GM THEY SAID DIFFERENT. WOULD NOT FIX, THIS IS A SAFETY HAZARD. *TR

NHTSA ODI #10300001

Mileage unknown · Jan 13, 2010
Electrical System

THE SPEEDOMETER IN MY TRAILBLAZER EXTENDED WILL "GET STUCK" ON OCCASION. THE PROBLEM HAS BECOME MUCH WORSE OVER THE PAST FEW WEEKS SINCE IT HAS BEEN SO COLD. I ALSO NOTICE IT MORE WHEN IT IS RAINING OUTSIDE. THIS OCCURS AT LEAST ONCE TO TWICE A WEEK. I HAVEN'T TAKEN MY VEHICLE TO THE DEALER YET BECAUSE I LOOKED ONLINE AND SAW…

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THE SPEEDOMETER IN MY TRAILBLAZER EXTENDED WILL "GET STUCK" ON OCCASION. THE PROBLEM HAS BECOME MUCH WORSE OVER THE PAST FEW WEEKS SINCE IT HAS BEEN SO COLD. I ALSO NOTICE IT MORE WHEN IT IS RAINING OUTSIDE. THIS OCCURS AT LEAST ONCE TO TWICE A WEEK. I HAVEN'T TAKEN MY VEHICLE TO THE DEALER YET BECAUSE I LOOKED ONLINE AND SAW THAT THIS IS OCCURRING ON MANY OF THE SAME TYPE VEHICLES. OBVIOUSLY CHEVROLET SHOULD BE RESPONSIBLE FOR THIS AND I REFUSE TO PAY FOR SOMETHING WHEN SOMEONE ELSE HAS '!@#$% UP. *TR

NHTSA ODI #10299591

50,000 miles · Dec 28, 2009
Electrical System

2005 TB EXT, SUMMER OF LAST YEAR THE COMPUTER HAD TO BE REPLACED, ABOUT 6 MONTHS AGO THE SPEEDOMETER QUIT WORKING, THE CHECK ENGINE LIGHT STAYS ON, THE GAS GAUGE WONT WORK, THE HEATER WONT WORK ON 5 AND THERE IS NO HEAT IN THE FRONT VENTS,THE OIL LIGHT DOES NOT WORK,, I HAVE HAD IT ALIGNED BUT THE BACK TIRES KEEP GOING BALD,,IT …

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2005 TB EXT, SUMMER OF LAST YEAR THE COMPUTER HAD TO BE REPLACED, ABOUT 6 MONTHS AGO THE SPEEDOMETER QUIT WORKING, THE CHECK ENGINE LIGHT STAYS ON, THE GAS GAUGE WONT WORK, THE HEATER WONT WORK ON 5 AND THERE IS NO HEAT IN THE FRONT VENTS,THE OIL LIGHT DOES NOT WORK,, I HAVE HAD IT ALIGNED BUT THE BACK TIRES KEEP GOING BALD,,IT LOOSES POWER SO BAD,,,,I WENT OUT THIS MORNING AND THE HEADLIGHTS WONT GO OFF AND NOW MY BATTERY IS DEAD...WHAT ELSE IS LEFT TO GO WRONG??? I HAVE 5 SMALL KIDS AND SOMEONE IS GOING TO GET HURT BECAUSE THIS VEHICLE IS DEFECTIVE AND NO ONE WANTS TO TAKE RESPONSIBILITY TO FIX IT.. SO NOW WHEN IS SOMEONE GOING TO FIX THIS PROBLEM ?IF I SPEND $24,000 ON THIS USED VEHICLE WITH ONLY 30,000 MILES ON IT WHEN I BOUGHT IT FEB 2008 IT COULD AT LEAST RUN DECENT..YOU WOULD THINK IT WOULD BE CHEAPER FOR CHEVROLET TO FIX THIS VEHICLE THAN TO HAVE A LAWSUIT. *TR

NHTSA ODI #10297105

64,000 miles · Dec 20, 2009
Electrical System

MY HUSBAND WAS DRIVING ON THE INTERSTATE AT ABOUT 65-70 MPH. ALL OF A SUDDEN IT DROPPED DOWN TO 40 AND WE IMMEDIATELY PULLED OVER AND TURNED OFF THE IGNITION. THE NEEDLE WAS STILL READING 40. WE WERE THREE HOURS FROM HOME AND HAD NO CHOICE BUT TO CONTINUE DRIVING. ONCE WE GOT WITHIN AN HOUR FROM OUR HOUSE IT STARTED WORKING CORR…

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MY HUSBAND WAS DRIVING ON THE INTERSTATE AT ABOUT 65-70 MPH. ALL OF A SUDDEN IT DROPPED DOWN TO 40 AND WE IMMEDIATELY PULLED OVER AND TURNED OFF THE IGNITION. THE NEEDLE WAS STILL READING 40. WE WERE THREE HOURS FROM HOME AND HAD NO CHOICE BUT TO CONTINUE DRIVING. ONCE WE GOT WITHIN AN HOUR FROM OUR HOUSE IT STARTED WORKING CORRECTLY. THREE DAYS AGO I WAS DRIVING BY MYSELF AND IT HAPPENED AGAIN. THE NEEDLE IS STUCK ON 60 MPH AND MY CAR IS PARKED IN THE DRIVEWAY. PLEASE ADDRESS THIS ISSUE ASAP I DON'T THINK I SHOULD BE DRIVING AROUND IN A VEHICLE THAT ISN'T OPERATING CORRECTLY JUST BECAUSE I DIDN'T CHOOSE TO BUY AN ESCALADE, TAHOE, OR SUBURBAN. VEHICLES THAT HAVE THE SAME PROBLEM AND WERE ISSUED A RECALL. *TR

NHTSA ODI #10296508

55,000 miles · Nov 18, 2009
Electrical System

2 GAUGES IN IPC HAVE MALFUNCTIONED: THE SPEEDOMETER AND THE FUEL GAUGE. THE SPEEDOMETER NEEDLE BEGINS TO "STICK" AT 60 MPH MARK AND DOES NOT RESET BACK TO ZERO AFTER TURNING THE IGNITION OFF. IN FACT, WHILE ON THE FREEWAY, THE SPEEDOMETER WILL OFTEN GO PAST 120 MPH MARK. THE FUEL GAUGE NEEDLE STICKS AT THE "EMPTY" MARK. COMMON…

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2 GAUGES IN IPC HAVE MALFUNCTIONED: THE SPEEDOMETER AND THE FUEL GAUGE. THE SPEEDOMETER NEEDLE BEGINS TO "STICK" AT 60 MPH MARK AND DOES NOT RESET BACK TO ZERO AFTER TURNING THE IGNITION OFF. IN FACT, WHILE ON THE FREEWAY, THE SPEEDOMETER WILL OFTEN GO PAST 120 MPH MARK. THE FUEL GAUGE NEEDLE STICKS AT THE "EMPTY" MARK. COMMON SENSE DICTATES THAT DRIVING A VEHICLE WITHOUT ANY CLUE AS TO HOW FAST OR HOW MUCH FUEL YOU HAVE IS HAZARDOUS. MY RESEARCH HAS DETERMINED THAT GM HAS RECALLED THE IPC FOR OTHER 2003, 2004 & 2005 CADILLAC, CHEVROLET AND GMC MODELS BUT NOT THE 2005 CHEVY TRAILBLAZER. *TR

NHTSA ODI #10292811

75,000 miles · Nov 15, 2009
Electrical System

MY 2005 CHEVY TRAILBLAZER LT SPEEDOMETER HAS GONE HAYWIRE. IT WILL WORK AND ALL OF A SUDDEN IT DROPS TO BELOW ZERO. IT WILL OCCASIONALLY HOVER BETWEEN 5-10 MPH AND THEN DROP AGAIN. SINCE IT FAILS TO SHOW WHAT YOUR TRUE SPEED IS, IT IS A VERY HAZARDOUS CONDITION. *TR

NHTSA ODI #10292214

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.