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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

What owners actually said

237 reports
190,000 miles · Jan 12, 2016
Vehicle Speed Control

TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER EXT 370. THE CONTACT STATED THAT WHILE DRIVING AT 60 MPH, THE VEHICLE FAILED TO ACCELERATE WHEN THE ACCELERATOR PEDAL WAS DEPRESSED. THE FAILURE OCCURRED ONCE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE THROTTLE BODY HAD FAILED AND NEEDED TO …

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TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER EXT 370. THE CONTACT STATED THAT WHILE DRIVING AT 60 MPH, THE VEHICLE FAILED TO ACCELERATE WHEN THE ACCELERATOR PEDAL WAS DEPRESSED. THE FAILURE OCCURRED ONCE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE THROTTLE BODY HAD FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 190,000.

NHTSA ODI #10819826

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

223,000 miles · Aug 7, 2015
Power Train

ON JULY 29, 2015 I EXITED THE FREEWAY, AND SUDDENLY MY 2005 CHEVY TRAILBLAZER EXT 4.2L BEGAN TO STALL AND WOULD NOT PROCEED UPON ACCELERATION. AFTER CALLING THE GM CORPORATE OFFICE, I ASKED IF THERE WAS A POSSIBLE WARRANTY ON THE VEHICLES TRANSMISSION, THEY STATED "NO"... HOWEVER, THE REPRESENTATIVE DID TELL ME THAT MY USED 200…

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ON JULY 29, 2015 I EXITED THE FREEWAY, AND SUDDENLY MY 2005 CHEVY TRAILBLAZER EXT 4.2L BEGAN TO STALL AND WOULD NOT PROCEED UPON ACCELERATION. AFTER CALLING THE GM CORPORATE OFFICE, I ASKED IF THERE WAS A POSSIBLE WARRANTY ON THE VEHICLES TRANSMISSION, THEY STATED "NO"... HOWEVER, THE REPRESENTATIVE DID TELL ME THAT MY USED 2005 TRAILBLAZER EXT DID HAVE THE TRANSMISSION REPLACED IN 2007. THIS IS 2 YEARS AFTER THE VEHICLE HIT THE ROAD SPANKING BRAND NEW. THERE HAS TO BE A PROBLEM WITH THE CHEVY TRAILBLAZERS TRANSMISSION. I ENDED UP SPENDING A TOTAL OF $1,600.00 FOR A REBUILT TRANSMISSION. I AM NOW LOOKING TO POSSIBLY TRADE MY TRAILBLAZER IN SOON. LOOKING AT THE COMPLAINTS HERE IN THIS FORUM REGARDING THE FAILURE OF THE CHEVY TRAILBLAZER TRANSMISSION IS RIDICULOUS. GM REFUSES TO OWN UP TO THEIR MISTAKE. IT WOULD BE NICE TO SEE NHTSA GET STRICT WITH AUTOMOTIVE MANUFACTURERS. WHAT WILL IT TAKE BEFORE SOMEONE LISTENS TO THE CONSUMER, A DEATH? THAT COULD HAVE EASILY BEEN MY FATE; LUCKILY, IT HAPPENED WHEN EXITING THE FREEWAY.

NHTSA ODI #10747094

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

150,000 miles · Jun 23, 2015
Exterior Lighting

TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER EXT 370. WHILE DRIVING 40 MPH, THE HEADLIGHTS FAILED WITHOUT WARNING. THE CONTACT MENTIONED THAT THE HEADLIGHTS WORK INTERMITTENTLY. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 150,000.

NHTSA ODI #10726814

80,000 miles · Jun 19, 2015
Fuel/propulsion System

FUEL GAUGE HAS BEEN READY EMPTY FOR SEVERAL MONTHS. I LOOKED ON INTERNET TO SEE HOW TO FIX OR POSSIBLE PROBLEMS. I NOTICED THERE WAS A LETTER SENT YEARS AGO TO THE AFFECT THAT GM WOULD COVER HALF THE COST TO REPAIR, UP TO 10 YEARS IN SERVICE OR 100,000 MILES. WHEN I CONTACTED DEALER THE CAR WAS IN SERVICE 10 YEARS AND 2 WEEKS…

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FUEL GAUGE HAS BEEN READY EMPTY FOR SEVERAL MONTHS. I LOOKED ON INTERNET TO SEE HOW TO FIX OR POSSIBLE PROBLEMS. I NOTICED THERE WAS A LETTER SENT YEARS AGO TO THE AFFECT THAT GM WOULD COVER HALF THE COST TO REPAIR, UP TO 10 YEARS IN SERVICE OR 100,000 MILES. WHEN I CONTACTED DEALER THE CAR WAS IN SERVICE 10 YEARS AND 2 WEEKS AND HAS 84,000 MILES. I WAS INFORMED GM WILL NOT HELP COVER EXPENSE FOR REPAIR DO TO TIME IN SERVICE. I AM QUESTIONING IF THIS COULD BECOME A RECALL OR EXTENDED IN SERVICE DATING FOR THIS PROBLEM.

NHTSA ODI #10726263

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

125,000 miles · Dec 10, 2014
Power TrainSeat Belts

STEERING WHEEL MALFUNCTIONS, CAR TURNS OFF WHEN WHEEL IS EXTENDED TOO FAR TO THE LEFT. SEATBELTS FOR LAST ROW OF SEATS DON'T LOCK, RADIO IS STUCK, BUTTONS DON'T CONTROL RADIO PROPERLY. *TR

NHTSA ODI #10663304

Mileage unknown · Nov 26, 2014
SteeringCrashInjury

TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER EXT 370. THE CONTACT STATED THAT THE DRIVER WAS TRAVELING APPROXIMATELY 65 MPH, THE POWER STEERING FAILED WITHOUT WARNING. THE VEHICLE WAS SHAKING VIOLENTLY MAKING IT EXTREMELY DIFFICULT FOR THE CONTACT TO CONTROL THE STEERING WHEEL. THE CONTACT STATED THAT THE DRIVER LOST CONTRO…

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TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER EXT 370. THE CONTACT STATED THAT THE DRIVER WAS TRAVELING APPROXIMATELY 65 MPH, THE POWER STEERING FAILED WITHOUT WARNING. THE VEHICLE WAS SHAKING VIOLENTLY MAKING IT EXTREMELY DIFFICULT FOR THE CONTACT TO CONTROL THE STEERING WHEEL. THE CONTACT STATED THAT THE DRIVER LOST CONTROL OF THE VEHICLE WHILE IT WAS SWAYING BACK AND FORTH, THE STEERING WHEEL LOCKED. THE VEHICLE CRASHED INTO A MEDIAN AND THE VEHICLE ROLLED OVER MORE THAN TWICE. THE DRIVER SUSTAINED MAJOR INJURIES IN WHICH THE INDEX FINGER ON THE LEFT HAND HAD TO BE SURGICALLY ADJUSTED AND ALSO THE THUMB WAS LACERATED DUE TO THE IMPACT OF THE CRASH. THE CONTACT WAS RECEIVING FURTHER MEDICAL ATTENTION DUE TO THE SEVERITY OF THE CRASH. A POLICE REPORT WAS FILED. THE VEHICLE WAS DESTROYED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS NOT AVAILABLE.

NHTSA ODI #10661097

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.