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2006 GMC Envoy Denali

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

72 reports with mileage · 12 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 19 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Fuel System, Gasoline. Review the 18 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 12 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

4 crash reports1 fire reports1 injury reports

Fuel System, Gasoline complaints

18 reports
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108,000 miles · Aug 31, 2017
Fuel System, Gasoline

AT EVERY FILLUP WE CAN SMELL GAS LIKE THERE IS A FUEL LEAK. I HAD A SHOP DO A FOG TEST AND THEY CONFIRMED A LEAK "SOMEWHERE FROM THE TOP OF THE TANK". THE TANK WOULD NEED TO BE DROPPED TO VISUALLY INSPECT AT A COST OF $400-$500 JUST FOR THE DROPPING OF THE TANK. THEN THERE WOULD BE ADDED COSTS TO REPAIR WHATEVER IS CAUSING THE L…

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AT EVERY FILLUP WE CAN SMELL GAS LIKE THERE IS A FUEL LEAK. I HAD A SHOP DO A FOG TEST AND THEY CONFIRMED A LEAK "SOMEWHERE FROM THE TOP OF THE TANK". THE TANK WOULD NEED TO BE DROPPED TO VISUALLY INSPECT AT A COST OF $400-$500 JUST FOR THE DROPPING OF THE TANK. THEN THERE WOULD BE ADDED COSTS TO REPAIR WHATEVER IS CAUSING THE LEAK AND SMELL OF GAS. AFTER HEARING THAT I CAME HOME TO START MY SEARCHING FOR RECALLS & SAFETY NOTICES TO FIND THAT GM HAD A NOTICE ISSUED AS WELL AS THE NHTSA, BUT IT SEEMS THEY CUT THE YEAR OFF AT 2004 & 120,000 MILES. ACCORDING TO THE THREAD BELOW, IT APPEARS THIS WAS EXTENDED TO VEHICLE UNDER 150,000 MILES WHICH WE ARE WELL UNDER, BUT WE DON'T HAVE A 2002-2004 MODEL. THREAD - HTTP://FORUMS.TRAILVOY.COM/SHOWTHREAD.PHP?T=22530 VIN - [XXX] A VIN SEARCH FOR THIS ENVOY DIDN'T BRING UP THE FUEL LEAK ISSUES, BUT WE CAN SMELL GAS & CONFIRMED A LEAK EXISTS ON THE TOP OF THE TANK SOMEWHERE. WAS THIS PROBLEM EVER REPORTED FOR NEWER MODELS YET? INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

NHTSA ODI #11020894

Mileage unknown · Jun 28, 2014
Fuel System, Gasoline

WHILE DRIVING THE VEHICLE THE AIR WILL LET OUT OF THE SHOCKS, ALSO HAPPENS WHEN VEHICLE IS PARKED. SSOMETIMES AIR WILL NOT EVEN ELEVATE SHOCKS WHEN VEHICLE IS TURNED ON. ALSO RANDOMLY WHILE VEHICLE IS STARTED WHWTHER THE FUEL TANK IS FULL OR EMPTY OR INBETWEEN IT WILL GO FROM ACCURATE LEVEL TO EMPTY MARK ON FUEL GAUGE. *TR

NHTSA ODI #10606651

60,000 miles · Oct 26, 2011
Fuel System, Gasoline

FUEL GAUGE STAYS ON EMPTY AFTER FILLING THE GAS TANK. IT MAY ALTERNATE FROM FULL TO EMPTY INTERMITTENTLY. *TT

NHTSA ODI #10432930

89,550 miles · Oct 6, 2011
Fuel System, Gasoline

ABOUT THREE MONTHS AGO THE FUEL GAUGE, AFTER FILLING THE TANK, WOULD READ EMPTY FOR A PERIOD OF TIME. THEN THE GAUGE WOULD READ FULL, THEN IT WOULD GO BACK TO EMPTY. THIS WOULD CONTINUE FOR A SHORT PERIOD OF TIME AND EVENTUALLY THE CORRECT (I ASSUMED) LEVEL WOULD BE SHOWN UNTIL THE NEXT FILL UP. AS TIME HAS PASSED, IT TAKES LONG…

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ABOUT THREE MONTHS AGO THE FUEL GAUGE, AFTER FILLING THE TANK, WOULD READ EMPTY FOR A PERIOD OF TIME. THEN THE GAUGE WOULD READ FULL, THEN IT WOULD GO BACK TO EMPTY. THIS WOULD CONTINUE FOR A SHORT PERIOD OF TIME AND EVENTUALLY THE CORRECT (I ASSUMED) LEVEL WOULD BE SHOWN UNTIL THE NEXT FILL UP. AS TIME HAS PASSED, IT TAKES LONGER FOR THE GAUGE TO FINALLY SETTLE DOWN AND READ NORMALLY. I HAVE NOW RECEIVED A LETTER FROM GMC STATING THEY ARE AWARE OF THE PROBLEM AND WILL PAY FOR HALF THE REPAIR COST. MY QUESTION IS THAT IF THIS IS A PREMATURE FAILURE, AS THE LETTER STATES, WHY GMC IS NOT RESPONSIBLE FOR 100% OF THE COST. THE LETTER ALSO STATES THAT THE FUEL LEVEL SHOWN MAY READ MORE THAN THE ACTUAL LEVEL. COULD LEAD TO RUNNING OUT OF FUEL ON THE INTERSTATE, GETTING IN AN ACCIDENT TRYING TO GET OFF THE ROAD, AND/OR INJECTOR DAMAGE. *TR

NHTSA ODI #10429009

15,000 miles · Sep 28, 2011
Fuel System, Gasoline

TL* THE CONTACT OWNS A 2006 GMC ENVOY DENALI. THE CONTACT STATED THAT AFTER REFUELING, THE FUEL GAUGE DISPLAYED A READING OF EMPTY AND THE CHECK ENGINE LIGHT ILLUMINATED. THE FUEL GAUGE HAD SINCE CONSTANTLY DISPLAYED INACCURATE READINGS. THE CONTACT REPLACED THE FUEL CAP, BUT THE FAILURE CONTINUED. THE VEHICLE WAS NOT TAKEN TO H…

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TL* THE CONTACT OWNS A 2006 GMC ENVOY DENALI. THE CONTACT STATED THAT AFTER REFUELING, THE FUEL GAUGE DISPLAYED A READING OF EMPTY AND THE CHECK ENGINE LIGHT ILLUMINATED. THE FUEL GAUGE HAD SINCE CONSTANTLY DISPLAYED INACCURATE READINGS. THE CONTACT REPLACED THE FUEL CAP, BUT THE FAILURE CONTINUED. THE VEHICLE WAS NOT TAKEN TO HAVE THE FAILURE DIAGNOSED, BUT THE CONTACT RECEIVED A LETTER FROM THE MANUFACTURER ACKNOWLEDGING THAT THEY WERE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 15,000. THE VIN WAS UNAVAILABLE.

NHTSA ODI #10427715

78,000 miles · Sep 19, 2011
Electronic Stability Control (esc)EquipmentFuel System, Gasoline

I BOUGHT A USED 2006 GMC ENVOY DENALI WITH 69,000 MILES IN JUNE 2010, BY JULY I WAS REPLACING THE AIR SHOCKS ON THE RIGHT SIDE OF THE VEHICLE. ON ABOUT 7/28/2011 ON THE BELTWAY WHERE THE SPEED LIMIT IS 65 I WAS IN THE FAR LEFT LANE APPROACHING A LEFT HAND EXIT WHEN MY CAR STALLED, I HAD RUN OUT OF GAS WITH NO INDICATION. I WAITE…

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I BOUGHT A USED 2006 GMC ENVOY DENALI WITH 69,000 MILES IN JUNE 2010, BY JULY I WAS REPLACING THE AIR SHOCKS ON THE RIGHT SIDE OF THE VEHICLE. ON ABOUT 7/28/2011 ON THE BELTWAY WHERE THE SPEED LIMIT IS 65 I WAS IN THE FAR LEFT LANE APPROACHING A LEFT HAND EXIT WHEN MY CAR STALLED, I HAD RUN OUT OF GAS WITH NO INDICATION. I WAITED OVER AN HOUR FOR SOMEONE TO COME PUT GAS IN MY TRUCK IN ABOUT 100 DEGREE TEMPATURE. I LATER RAN OUT OF GAS ON A BACK ROAD COMING TO MY HOUSE AT NIGHT. AGAIN NO INDICATOR LIGHT CAME ON TO LET ME KNOW I WAS LOW ON GAS. NOW THE GAS GAUGE FLOATS BETWEEN FULL AND EMPTY CONTIONUSLY. THIS WAS A VERY DANGEROUS AND SCARY SITUATION BOTH TIMES. MY FLASHERS WERE ON THE WHOLE TIME AND I HAD TO CHANGE THE BATTERY. NOW THE AIR WILL NOT COME OUT OF THE VENTS ONLY THE FLOOR AND DEFROST. BUT THE MOST IMPORTANT THING IS THE GAS GAUGE, I COULD HAVE BEEN INVOLVED IN AN ACCIDENT BOTH TIMES. *KB

NHTSA ODI #10425985

Mileage unknown · Aug 16, 2011
Electrical SystemEngine And Engine CoolingEquipment

2006 ENVOY DENALI. CONSUMER WRITES STATES GAS NEEDLE STOPPED FUNCTIONING *TGW THE CONSUMER STATED THE GAS NEEDLE BEGAN TO FLUCTUATE IN THE BEGINNING AND SINCE THAT TIME, THE NEEDLE HAS BEEN STUCK ON EMPTY, AND THE ENGINE LIGHT ILLUMINATED AS A RESULT. IN MARCH OF 2009, WHEN THE CONSUMER STARED THE VEHICLE, IT SOUNDED AS IF THER…

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2006 ENVOY DENALI. CONSUMER WRITES STATES GAS NEEDLE STOPPED FUNCTIONING *TGW THE CONSUMER STATED THE GAS NEEDLE BEGAN TO FLUCTUATE IN THE BEGINNING AND SINCE THAT TIME, THE NEEDLE HAS BEEN STUCK ON EMPTY, AND THE ENGINE LIGHT ILLUMINATED AS A RESULT. IN MARCH OF 2009, WHEN THE CONSUMER STARED THE VEHICLE, IT SOUNDED AS IF THERE WAS SOMETHING METAL TUMBLING AROUND UNDER THE HOOD. UPON INSPECTION OF THE VEHICLE, IT WAS DETERMINED THE ENGINE NEEDED TO BE REPLACED. ON JUNE 10, 2010, THE VEHICLE WOULD NOT START AND HAD TO BE TOWED TO THE DEALER. AN INSPECTION REVEALED A STARTER WAS NEEDED. ALSO, AN ALIGNMENT WAS DONE AND THE REAR BRAKE LIGHT WAS REPLACED. ON JUNE 12, 2010, THE VEHICLE WOULD NOT COME OUT OF PARK. AFTER 25 MINUTES AND OVER 50 ATTEMPTS, IT FINALLY CAME OUT OF PARK. THE CONSUMER DROVE TO THE DEALER, BUT THEY WERE UNABLE TO FIND A PROBLEM. SEPTEMBER 2010, THE CONSUMER NOTICED THE REAR OF THE TRUCK WAS SITTING VERY LOW. THE REAR END AIR SUSPENSION NEEDED TO BE REPLACED. THE AIR CONDITION RANDOMLY WORKED. THERE WERE TIMES WHERE THE AIR WOULD JUST START BLOWING AND NO BUTTONS WERE PUSHED. ALSO, THE DEFROSTER STOPPED WORKING. THE CONSUMER CONTINUED TO EXPERIENCE PROBLEMS WITH THE VEHICLE NOT COMING OUT OF PARK. *JB

NHTSA ODI #10420249

57,000 miles · Jul 20, 2011
Fuel System, Gasoline

TL* THE CONTACT OWNS A 2006 GMC ENVOY DENALI. WHILE DRIVING APPROXIMATELY 35 MPH THE CONTACT NOTICED THE FUEL GAUGE DISPLAYED EMPTY. THE CONTACT PREVIOUSLY ADDED FUEL AND CONFIRMED THAT THE FUEL TANK WAS NOT EMPTY. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FA…

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TL* THE CONTACT OWNS A 2006 GMC ENVOY DENALI. WHILE DRIVING APPROXIMATELY 35 MPH THE CONTACT NOTICED THE FUEL GAUGE DISPLAYED EMPTY. THE CONTACT PREVIOUSLY ADDED FUEL AND CONFIRMED THAT THE FUEL TANK WAS NOT EMPTY. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 57,000.

NHTSA ODI #10413753

42,000 miles · Jul 18, 2011
Engine And Engine CoolingFuel System, Gasoline

FUEL SENSOR FAILURE IN THE GAS TANK. CAUSING THE FUEL TANK TO READ EMPTY WHEN FULL, CAUSING THE SUV TO STALL WHEN THE TANK IS FULL, CAUSING THE CHECK ENGINE LIGHT TO COME ONE. THIS IS A SAFETY ISSUE. *KB

NHTSA ODI #10413389

49,000 miles · Jul 11, 2011
Fuel System, Gasoline

THE FUEL GAGE DOES NOT WORK PROPERLY GOES FROM FULL TO EMPTY NO MATTER HOW MUCH FUEL IS IN THE TANK ALSO SETS OFF CHECK ENGINE LIGHT MAY CAUSE PROBLEMS WITH E_CHECK. *TT

NHTSA ODI #10411828

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

1

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.