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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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Mileage unknown · Oct 12, 2018
Electrical SystemFuel/propulsion System

THE WHOLE INSTRUMENT CLUSTER DOES NOT WORK ANYMORE, DOES NOT LET ME KNOW HOW FAST I'M GOING OR HOW MUCH FUEL I HAVE, OIL PRESSURE GAUGE DOESN'T WORK, TEMPERATURE GAUGE DOESN'T WORK... WHY HASN'T THIS BEEN RECALLED? THIS IS VERY DANGEROUS, CONSIDERING I HAVE 4 KIDS THAT ARE CONSTANTLY IN THE CAR WITH ME AND I HAVE NO IDEA WHAT IS…

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THE WHOLE INSTRUMENT CLUSTER DOES NOT WORK ANYMORE, DOES NOT LET ME KNOW HOW FAST I'M GOING OR HOW MUCH FUEL I HAVE, OIL PRESSURE GAUGE DOESN'T WORK, TEMPERATURE GAUGE DOESN'T WORK... WHY HASN'T THIS BEEN RECALLED? THIS IS VERY DANGEROUS, CONSIDERING I HAVE 4 KIDS THAT ARE CONSTANTLY IN THE CAR WITH ME AND I HAVE NO IDEA WHAT IS GOING ON WITH MY VEHICLE?? AND IT ALSO TELLS ME THAT MY FUEL LEVEL IS LOW, EVEN AFTER I FILL MY TANK. THIS SEEMS LIKE A VERY COMMON PROBLEM IN THESE VEHICLES, WHY HAS IT NOT BEEN CONSIDERED A SAFETY ISSUE????

NHTSA ODI #11140001

81,000 miles · Jun 8, 2018
Electrical SystemExterior LightingSteering

I HAVE 2005 CHEVROLET TRAILBLAZER 4WD EXT LS 4.2 LITER. I NOTICED OVER PAST 3 YEARS THAT I BE AT DRIVE THROUGH FOR BURGERS AND ETC. THE CAR WOULD CUT OFF. I DID NOT THINK MUCH OF IT AT THE TIME. IT HAS GOTTEN CRITICALLY WORSE. IT WOULD CUT OFF IN MIDDLE OF THE HIGHWAY, DRIVE THROUGHS AND ETC. DURING THE PAST TWO YEARS I HA…

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I HAVE 2005 CHEVROLET TRAILBLAZER 4WD EXT LS 4.2 LITER. I NOTICED OVER PAST 3 YEARS THAT I BE AT DRIVE THROUGH FOR BURGERS AND ETC. THE CAR WOULD CUT OFF. I DID NOT THINK MUCH OF IT AT THE TIME. IT HAS GOTTEN CRITICALLY WORSE. IT WOULD CUT OFF IN MIDDLE OF THE HIGHWAY, DRIVE THROUGHS AND ETC. DURING THE PAST TWO YEARS I HAVE RE THE LUSTER AND OVER HEAD DOME LIGHT FLICKER. HEAD LIGHTS VERY DIM ON DRIVING ALSO I HAVE REPLACED ON THIS VEHICLE THE FUEL THROTTLE AND SENSOR, A CRANK SENSOR A CAM SENSOR, A TEMP SENSOR 4 POWER STEERING PUMPS NEW THE POWER STEERING RACK AND ASSEMBLY WHEEL HUBS AND BEARINGS, ALL NEW COILS SPARK PLUGS, BELT IDLE PULLEY POWER STEERING PULLEY CHANGE OIL EVERY 3,000 MILES AIR FILTER CHANGE BATTERY, UPDATED SOFT WARE, FLUSH FUEL SYSTEM, SERVICE THE AIR CONDITION REPLACED REAR SHOCKS, GM RELACED PULLEY ON ENGINE 2010 REPLACED THE PVC HOSE FLUSH RADIATOR AND BRAKE SYSTEM, ROTATION AND ALIGNMENT DONE EVERY 5000 MILES, REPLACED HEADLIGHT LOW BEAM BULBS AND LEFT TAIL LIGHT ASSEMBLY AND LENS, I HAD IT TO CHEVROLET PRIVATE MECHANIC GARAGE AND NOTHING IS READING WRONG ALSO NOTICE THE ECM NOT STORING THE SERVICE ENGINE LIGHT STAY A MICROSECOND ON. THIS HIGHLY DANGEROUS CAN STAL OR QUIT AND BE RUN OVER ON HIGHWAY. I NOTICED ON THE WEB ON CARS COMPLAINT.COM AMANY PEOPLE HAVE CMPLAINTED THIS ISSUE.CHEVROLET HAD INVESTIGATED THS ISSUE AAAAAND NO RESOLVE. I FELT THE VEHIHICLE MAY HAVE A SHORT R A BAD ALTERNATOR OR STARTER. .VEHIVLE WAS SITTING AT INTERSECTION I NOTICED IT TRIES TO STALL ON DRIVING ALSO. ALL RECORDS ARE WITH CAR.

NHTSA ODI #11100524

750 miles · Jul 13, 2017
Electrical System

FOR THE 3RD TIME THE CLUSTER HAS GONE OUT. THIS RESULTS IN THE SPEEDOMETER, TEMPERATURE GAUGE AND OTHERS TO STOP WORKING. EACH TIME I AM EXPECTED TO TAKE MY VEHICLE TO A CHEVROLET MECHANIC FOR DIAGNOSIS AND PART REPLACEMENT AT $700.00+ EACH TIME. THIS MODEL HAS NO RECALL. I AM FED UP WITH PAYING THIS MUCH EVERY 3-4 YEARS FOR…

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FOR THE 3RD TIME THE CLUSTER HAS GONE OUT. THIS RESULTS IN THE SPEEDOMETER, TEMPERATURE GAUGE AND OTHERS TO STOP WORKING. EACH TIME I AM EXPECTED TO TAKE MY VEHICLE TO A CHEVROLET MECHANIC FOR DIAGNOSIS AND PART REPLACEMENT AT $700.00+ EACH TIME. THIS MODEL HAS NO RECALL. I AM FED UP WITH PAYING THIS MUCH EVERY 3-4 YEARS FOR A DEFECTIVE PART. THERE HAS NEVER BEEN ANY SIGN BEFORE IT GOES OUT.

NHTSA ODI #11005176

Mileage unknown · Mar 16, 2017
Electrical System

OUR 2005 CHEVY TRAILBLAZER SPEEDOMETER STOPPED WORKING. THIS HAS HAPPENED ON MANY OF THESE VEHICLES. IT IS A VERY EXPENSIVE FIX AND IT'S A DANGER TO DRIVERS NOT KNOWING HOW FAST THEY ARE TRAVELING.

NHTSA ODI #10966245

90,000 miles · Jan 25, 2016
Electrical SystemExterior Lighting

THERE IS ALREADY A RECALL OUT FOR THE 2006 MODEL YEAR, BUT I KNOW THAT MINE IS PART OF IT. I HAVE A 2005 TRAILBLAZER AND THE HEADLIGHTS KEEP INTERMITTENTLY GOING OUT AS I AM DRIVING DOWN THE ROAD. THIS PROBLEM AS HAPPENED TO ME BEFORE IN THE PAST AND I WAS ABLE TO FINALLY REMEDY THE ISSUE BY REPLACING THE RELAY. THE PROBLEM…

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THERE IS ALREADY A RECALL OUT FOR THE 2006 MODEL YEAR, BUT I KNOW THAT MINE IS PART OF IT. I HAVE A 2005 TRAILBLAZER AND THE HEADLIGHTS KEEP INTERMITTENTLY GOING OUT AS I AM DRIVING DOWN THE ROAD. THIS PROBLEM AS HAPPENED TO ME BEFORE IN THE PAST AND I WAS ABLE TO FINALLY REMEDY THE ISSUE BY REPLACING THE RELAY. THE PROBLEM HAS NOW RETURNED AND I HAVE EVEN BEEN PULLED OVER MULTIPLE TIMES FOR IT. AFTER DOING A QUICK GOOGLE SEARCH TODAY I DISCOVERED THAT THERE ARE TONS!!!!! OF PEOPLE WITH THE SAME ISSUE GOING BACK AS FAR AS 2002. HTTP://WWW.TOPIX.COM/FORUM/AUTOS/CHEVROLET-TRAILBLAZER/T32JTL93I9FKAUF4N HTTP://FORUMS.TRAILVOY.COM/SHOWTHREAD.PHP?T=47492 HTTP://CHEVROLETFORUM.COM/FORUM/TRAILBLAZER-27/2003-TRAILBLAZER-HEADLIGHTS-2588/ I ALSO RAN ACROSS THAT GM HAS ISSUED A RECALL FOR HEADLIGHTS, BUT IT ONLY COVERS YEARS 2006-2008. HTTP://FORTUNE.COM/2014/12/01/GM-RECALLS-316000-VEHICLES-BECAUSE-OF-MALFUNCTIONING-HEADLIGHTS/ CLEARLY!!!! THIS PROBLEM IS NOT LIMITED TO THOSE YEARS AND THERE ARE A LOT OF PEOPLE SUFFERING FROM THE SAME ISSUE OF NOT BEING ABLE TO SEE AT NIGHT.. WHAT DO I NEED TO DO SO THAT I CAN GET THIS PROBLEM TAKEN CARE OF? PLEASE RESPOND QUICKLY AS WINTER IS RAPIDLY APPROACHING AND THIS IS A DAILY DRIVER FOR ME. I GO TO WORK EARLY IN THE MORNING WHEN IT IS DARK AND BY THE TIME I COME HOME AGAIN IT IS ALREADY GETTING DARK. IT WOULD BE NICE TO ACTUALLY BE ABLE TO SEE AS I AM GOING DOWN THE ROAD AND EVEN TO HAVE OTHERS BE ABLE TO SEE ME COMING AS WELL.

NHTSA ODI #10822072

Mileage unknown · Nov 6, 2015
Electrical SystemFuel/propulsion SystemVehicle Speed Control

ELECTRICAL ISSUES:VEHICLE DASHBOARD LIGHTS WILL SHOW DOOR GATE OPEN, DOOM LIGHTS WIL BE ON, RINGING BELL WHEN THE DOOR WOULD BE OPEN AND YET ITS ACTUALLY CLOSED, AS ALL CONTINUES TO GO AT ANY GIVEN TIME WHEN THE VEHICLE IS IN MOVEMENT. SPEED ODOMETER GAGE DOESN'T READ WHEN VEHICLE IS IN MOVEMENT AND THE GAS GAGE DOESN'T READ T…

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ELECTRICAL ISSUES:VEHICLE DASHBOARD LIGHTS WILL SHOW DOOR GATE OPEN, DOOM LIGHTS WIL BE ON, RINGING BELL WHEN THE DOOR WOULD BE OPEN AND YET ITS ACTUALLY CLOSED, AS ALL CONTINUES TO GO AT ANY GIVEN TIME WHEN THE VEHICLE IS IN MOVEMENT. SPEED ODOMETER GAGE DOESN'T READ WHEN VEHICLE IS IN MOVEMENT AND THE GAS GAGE DOESN'T READ THE CORRECT LEVEL OF SHOWING HOW MUCH GAS IS IN VEHICLE. THIS IS A BIG SAFETY ISSUES CAUSE IT HAS ME WORRIED OF NOT KNOWING HOW MUCH GAS I HAVE BEFORE IT RUNS OUT OF GAS RISKING MYSELF AND OTHERS BECAUSE VEHICLE ALL OF A SUDDENNESS LOSES SPEED AND SHUTS DOWN.

NHTSA ODI #10788846

139,000 miles · Oct 1, 2015
Electrical SystemVisibility/wiper

TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER EXT 370. THE CONTACT STATED THAT THE WHEN THERE WAS MOISTURE IN THE AIR, THE DRIVER SIDE MASTER SWITCH FAILED TO OPERATE WITHOUT WARNING. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND STATED THAT THE VIN WAS NOT INCLUDED IN NHTSA CAMP…

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TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER EXT 370. THE CONTACT STATED THAT THE WHEN THERE WAS MOISTURE IN THE AIR, THE DRIVER SIDE MASTER SWITCH FAILED TO OPERATE WITHOUT WARNING. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND STATED THAT THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 13V248000 (ELECTRICAL SYSTEM, VISIBILITY). THE FAILURE MILEAGE WAS 139,000.

NHTSA ODI #10778934

126,000 miles · Jun 24, 2015
Electrical System

MY SPEEDOMETER AND OIL GAUGE JUST QUIT WORKING FOR NO APPARENT REASON AND DOES NOT COME BACK ON UNTIL HOURS LATER.

NHTSA ODI #10730224

78,000 miles · Feb 26, 2015
Electrical System

SINCE OCTOBER 2014 THE SPEEDOMETER WOULD RANDOMLY START UP AT DIFFERENT INITIAL POINTS. SOME DAYS IT WOULD START AT 60 MPH, 10MPH AND RECENTLY IT STARTS UP AT 110MPH. WHEN THE VEHICLE IS IN MOTION THE NEEDLE WOULD MOVE WHEN ACCELERATING BUT THE READINGS ARE COMPLETELY INACCURATE. I HAVE READ VARIOUS ONLINE BLOGS OF THIS SAME…

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SINCE OCTOBER 2014 THE SPEEDOMETER WOULD RANDOMLY START UP AT DIFFERENT INITIAL POINTS. SOME DAYS IT WOULD START AT 60 MPH, 10MPH AND RECENTLY IT STARTS UP AT 110MPH. WHEN THE VEHICLE IS IN MOTION THE NEEDLE WOULD MOVE WHEN ACCELERATING BUT THE READINGS ARE COMPLETELY INACCURATE. I HAVE READ VARIOUS ONLINE BLOGS OF THIS SAME INCIDENT HAPPENING TO NUMEROUS CHEVY TRAILBLAZERS IN GENERAL. GM DOES NOT HAVE THIS PROBLEM AS A RECALL THEREFORE I WOULD FORMALLY LIKE TO MAKE A COMPLAINT. THANK YOU FOR YOUR TIME. *TR

NHTSA ODI #10690849

77,310 miles · Jul 17, 2014
Electrical System

MY HUSBAND BOUGHT THE CAR USED FOR ME FOR CHRISTMAS 2013. I WAS DRIVING THROUGH THE CITY WHEN I LOOKED DOWN TO SEE HOW FAST I WAS GOING THE SPEEDOMETER SAID 0 IT REMAINED THAT WAY UNTIL THE NEXT DAY. I STARTED IT THE NEXT DAY IT SEEMED FINE BUT AFTER A 1/2 MILE I NOTICED I SPED UP AND SPEEDOMETER WAS GOING DOWN UNTIL IT FINALLY…

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MY HUSBAND BOUGHT THE CAR USED FOR ME FOR CHRISTMAS 2013. I WAS DRIVING THROUGH THE CITY WHEN I LOOKED DOWN TO SEE HOW FAST I WAS GOING THE SPEEDOMETER SAID 0 IT REMAINED THAT WAY UNTIL THE NEXT DAY. I STARTED IT THE NEXT DAY IT SEEMED FINE BUT AFTER A 1/2 MILE I NOTICED I SPED UP AND SPEEDOMETER WAS GOING DOWN UNTIL IT FINALLY WENT TO 0. I HAVE BEEN DRIVING WITH A SPEEDOMETER THAT DOESN'T WORK. I LOOKED ONLINE AND SEEN THAT A LOT OF OTHER CONSUMERS WERE HAVING THE SAME PROBLEM SOME WITH MUCH LESS MILEAGE. *TR

NHTSA ODI #10611376

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.