GAS GAUGE, SHOES IT HAS A DIFFERENT AMOUNT OF GAS.. WHEN TURNED OFF IT CAN SAY ITS AT 1/2 A TANK, THEN WHEN THE ENGINE IS ON IT SHOWS THAT CAR HAS 1 1/2 TANKS OF GAS. ITS NOT CONSISTENT AND I ALWAYS HAVE TO GUESS HOW MUCH GAS IS IN THE CAR. ALSO THE CHECK LIGHT IS ALWAYS ON. THE GAS TANK HAS ISSUES TOO. *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
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.
Fuel System, Gasoline complaints
67 reportsTHE DASH COMPONENT WENT OUT, LEAVING ALL OF THE GAUGES BROKEN, INCLUDING THE SPEEDOMETER AND GAS GAUGE. ALSO, THE FUEL SENSOR IS BROKEN SO IN ORDER TO HAVE A WORKING GAS GAUGE, BOTH THE DASH SYSTEM AND THE FUEL SENSOR MUST BE FIXED. THE DOORS LOCK AUTOMATICALLY AND SOMETIMES WON'T UNLOCK IF THEY WERE LOCKED WHEN THE CAR WAS TURN…
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THE DASH COMPONENT WENT OUT, LEAVING ALL OF THE GAUGES BROKEN, INCLUDING THE SPEEDOMETER AND GAS GAUGE. ALSO, THE FUEL SENSOR IS BROKEN SO IN ORDER TO HAVE A WORKING GAS GAUGE, BOTH THE DASH SYSTEM AND THE FUEL SENSOR MUST BE FIXED. THE DOORS LOCK AUTOMATICALLY AND SOMETIMES WON'T UNLOCK IF THEY WERE LOCKED WHEN THE CAR WAS TURNED OFF UNTIL THE CAR IS TURNED ON AGAIN. IT TAKES THEM 2 WEEKS TO FIX THE PROBLEM!! MEANWHILE, WE HAVE RUN OUT OF GAS, ALMOST CAUSING AN ACCIDENT, AND CONTINUALLY HAVE TO GAUGE OUR SPEED BY THE SPEED OF OTHERS AROUND US, IF WE ARE LUCKY TO BE TRAVELING WHERE THERE ARE OTHERS WHO HOPEFULLY ARE DOING THE SPEED LIMIT. IT'S GOING TO COST ABOUT $1500 TO FIX IT ALL AND HAVE A RENTAL CAR FOR THE 2 WEEK PERIOD IT TAKES THEM TO FIX IT. IT CAN'T BE FIXED BY A NON-GM SERVICE CENTER BECAUSE GM HAS TO REPROGRAM THE ELECTRICAL SYSTEM ONCE IT IS FIXED SO IT WOULD THEN HAVE TO BE TOWED TO A GM DEALER ANYWAY AND WOULD COST EVEN MORE. MEANWHILE, WE AND THOSE DRIVING AROUND US ARE AT MORE RISK BECAUSE OF THESE DEFECTS. *TR
GAS TANK IS BROKE AND IT IS EXPENSIVE TO FIX. FROM WHAT MY MECHANIC SAID THERE SHOULD BE A RECALL ON THIS. WE HAVE TO KEEP TRACK OF OUR MILEAGE CONSTANTLY SO WE WON'T RUN OUT OF GAS. *TR
TODAY, 02/28/2012, I NOTICED THAT THE FUEL GAUGE ON MY 2005 CHEVROLET TRAILBLAZER EXT WAS FLUCTUATING BETWEEN HALF FULL AND FULL AFTER ADDING 19 GALLONS OF GAS TO THE TRUCK. THIS IS THE FIRST TIME I HAVE NOTICED THIS PROBLEM AND AM AWARE THAT MANY OTHER INDIVIDUALS HAVE HAD THIS PROBLEM ON THEIR TRAILBLAZERS. I AM HOPING THERE …
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TODAY, 02/28/2012, I NOTICED THAT THE FUEL GAUGE ON MY 2005 CHEVROLET TRAILBLAZER EXT WAS FLUCTUATING BETWEEN HALF FULL AND FULL AFTER ADDING 19 GALLONS OF GAS TO THE TRUCK. THIS IS THE FIRST TIME I HAVE NOTICED THIS PROBLEM AND AM AWARE THAT MANY OTHER INDIVIDUALS HAVE HAD THIS PROBLEM ON THEIR TRAILBLAZERS. I AM HOPING THERE WILL BE A RECALL IN THE NEAR FUTURE. *TR
MY GAS GAUGE SUDDENLY DOES NOT WORK PROPERLY. EVEN IF I KNOW THE TANK IS FULL WHEN I FIRST START THE ENGINE THE FUEL LIGHT GOES ON AND GIVE THE AUDIBLE SIGNAL THAT IT'S LOW ON FUEL. AS I BEGIN TO DRIVE THE GAUGE WILL EVENTUALLY MOVE A LITTLE BIT SO THE LIGHT WILL GO OFF. I HAVE A FULL TANK TODAY AND AFTER DRIVING ONLY 13 MILE…
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MY GAS GAUGE SUDDENLY DOES NOT WORK PROPERLY. EVEN IF I KNOW THE TANK IS FULL WHEN I FIRST START THE ENGINE THE FUEL LIGHT GOES ON AND GIVE THE AUDIBLE SIGNAL THAT IT'S LOW ON FUEL. AS I BEGIN TO DRIVE THE GAUGE WILL EVENTUALLY MOVE A LITTLE BIT SO THE LIGHT WILL GO OFF. I HAVE A FULL TANK TODAY AND AFTER DRIVING ONLY 13 MILES IT REGISTERS LESS THAT HALF A TANK. I GOT A LETTER FROM GM ACKNOWLEDGING THAT THIS PROBLEM PERSISTS BUT WILL ONLY OFFER TO PAY FOR HALF OF THE REPAIR??? WHAT? DIDN'T WE JUST BAIL THEM OUT? "TOO BIG TO FAIL"??? WELL USE SOME OF THE MONEY WE ALREADY GAVE TO GM TO FIX THE PROBLEM!! *TR
FUEL GAUGE IS ERRATIC. READS EMPTY MOST OF THE TIME EVEN AFTER A FILL-UP. GAUGE NEEDLE BOUNCES FROM EMPTY TO FULL WHILE DRIVING. FAULTY SENDER CAUSES CHECK ENGINE LIGHT TO STAY ON CONSTANTLY. I RECEIVED A NOTICE FROM GM EXPLAINING THAT THEY WOULD PAY FOR HALF OF THE REPAIR, BUT ONLY IF MY TRAILBLAZER WAS UNDER 120,000 MILES. …
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FUEL GAUGE IS ERRATIC. READS EMPTY MOST OF THE TIME EVEN AFTER A FILL-UP. GAUGE NEEDLE BOUNCES FROM EMPTY TO FULL WHILE DRIVING. FAULTY SENDER CAUSES CHECK ENGINE LIGHT TO STAY ON CONSTANTLY. I RECEIVED A NOTICE FROM GM EXPLAINING THAT THEY WOULD PAY FOR HALF OF THE REPAIR, BUT ONLY IF MY TRAILBLAZER WAS UNDER 120,000 MILES. I DON'T KNOW OF TOO MANY VEHICLES ON THE ROAD THAT ARE 7 YEARS OLD THAT HAVE LESS THAN 120,000 MILES. *TR
TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER EXT 370. THE CONTACT STATED THAT THE FUEL GAUGE WOULD NOT REGISTER HOW MUCH FUEL WAS IN THE VEHICLE. THE CONTACT RECEIVED NOTIFICATION OF A MANUFACTURERS SAFETY CAMPAIGN IN WHICH THE MANUFACTURER WOULD COVER FIFTY PERCENT OF THE REPAIR COSTS IF THE VEHICLE HAS LESS THAN 110,000 C…
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TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER EXT 370. THE CONTACT STATED THAT THE FUEL GAUGE WOULD NOT REGISTER HOW MUCH FUEL WAS IN THE VEHICLE. THE CONTACT RECEIVED NOTIFICATION OF A MANUFACTURERS SAFETY CAMPAIGN IN WHICH THE MANUFACTURER WOULD COVER FIFTY PERCENT OF THE REPAIR COSTS IF THE VEHICLE HAS LESS THAN 110,000 CUMULATIVE MILES. THE CONTACT STATED THAT THE VEHICLE WAS AT 145,000 MILES AND THE MANUFACTURER DENIED ANY ASSISTANCE WITH REPAIRS TO THE VEHICLE. THERE WAS A CONCURRENT INVESTIGATION PERTAINING TO THE FAILURE UNDER NHTSA ACTION NUMBER: PE11014 (FUEL SYSTEM, OTHER: STORAGE: FUEL GAUGE SYSTEM). THE VEHICLE WAS NOT REPAIRED. THE VIN WAS UNAVAILABLE. THE FAILURE MILEAGE WAS 70,000 AND THE CURRENT MILEAGE WAS 145,000.
GAS GUAGE READS EMPTY EVEN THOUGH FULL TANK, BATTERY AND TEMP GAUGE ALSO GO UP AND DOWN, CHECK ENGINE LIGHT IS ON. I KNOW OF MORE THAN 8 PEOPLE WITH SIMILAR VEHICLES OF DIFFERENT MODEL YEARS WITH SAME ISSUE. CHEVY SENT A LETTER SAYING THAT THEY WOULD PAY 50% FOR THE REPAIR OF THE OF THE INSTRUMENT CLUSTER IF THE VEHICLE HAD LES…
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GAS GUAGE READS EMPTY EVEN THOUGH FULL TANK, BATTERY AND TEMP GAUGE ALSO GO UP AND DOWN, CHECK ENGINE LIGHT IS ON. I KNOW OF MORE THAN 8 PEOPLE WITH SIMILAR VEHICLES OF DIFFERENT MODEL YEARS WITH SAME ISSUE. CHEVY SENT A LETTER SAYING THAT THEY WOULD PAY 50% FOR THE REPAIR OF THE OF THE INSTRUMENT CLUSTER IF THE VEHICLE HAD LESS THAN 120,00 MILES OR WAS 10 YEARS OLD OR LESS. MY VEHICLE NOW HAS 146,000 MILES, BUT THE PROBLEM STARTED A YEAR AGO WHEN THERE WERE ONLY APPROX. 120,000 MILES ON IT. I FEEL THAT THIS IS A SAFETY ISSUE BEING THAT MY WIFE TRANSPORTS MY CHILDREN IN THIS VEHICLE AND SHOULD I NEGLECT TO TELL HER SHE NEEDS FUEL, SHE RUNS THE RISK OF BEING STRANDED SOMEWHERE WITH MY FAMILY, OR WORSE ON A HEAVILY TRAVELED ROAD WHERE THE VEHICLE COULD STALL WITH NO WARNING. THANK YOU FOR YOUR TIME. *TR
FUEL GAUGE QUIT WORKING. NOW THE OIL PRESSURE GAUGE WORKS ONLY SOME OF THE TIME. *TR
I OWN A 2005 TRAILBLAZER, THE FIRST PROBLEM HAD TO DO WITH THE GAS NOT PUMPING. IT WOULD CAUSE THE PUMP TO CUT OFF. THE PASSENGER SEAT'S PLASTIC SIDE BROKE OFF AND NOW THE DRIVER'S SEAT IS BROKE. THE DRIVER'S LUMBAR SELECTOR QUIT WORKING.THE SPEEDOMETER HAS STOPPED WORKING. I USE MY GPS.THEN THE FUEL GAUGE QUIT WORKING, THE "DUM…
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I OWN A 2005 TRAILBLAZER, THE FIRST PROBLEM HAD TO DO WITH THE GAS NOT PUMPING. IT WOULD CAUSE THE PUMP TO CUT OFF. THE PASSENGER SEAT'S PLASTIC SIDE BROKE OFF AND NOW THE DRIVER'S SEAT IS BROKE. THE DRIVER'S LUMBAR SELECTOR QUIT WORKING.THE SPEEDOMETER HAS STOPPED WORKING. I USE MY GPS.THEN THE FUEL GAUGE QUIT WORKING, THE "DUMMY LIGHT" STAYS ON ALL THE TIME. CD IS HUNG UP IN THE RADIO. THE FRONT FAN FOR AC/HEATING QUIT WORKING.THE OTHER FANS WORK AND THE AC COOLS.EVIDENTLY THERE ARE ALOT OF COMPLAINS WITH THIS CERTAIN MAKE/MODEL GM SHOULD FIX THE PROBLEMS. IF THEY DON'T FIX MY PROBLEMS MY NEST CAR WILL CERTAINLY NOT BE AN AMERICAN MADE ONE BECAUSE I HAVEN'T SEEN ALOT OF PRIDE WHEN WE HAVE TO BEG TO GET OUR CARS FIXED WHEN SHODDY PARTS ARE USED ON OUR CARS. *TR
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.
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