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2006 GMC Envoy Denali Xl

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

37 reports with mileage · 5 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.

  • Fuel System, Gasoline. Review the 13 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 5 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

2 crash reports1 fire reports0 injury reports

What owners actually said

42 reports
42,000 miles · May 28, 2010
Fuel System, Gasoline

ABOUT 4 MONTHS AGO, AT AROUND 42,000 MILES, AFTER FILLING UP THE FUEL TANK, THE FUEL GAUGE STARTED FLUCTUATING FROM FULL TO EMPTY. FOR A FEW MONTHS THIS WOULD ONLY HAPPEN WHEN THE FUEL TANK WAS ABOVE FULL, BUT LATELY THE FUEL GAUGE WILL DROP TO EMPTY FOR LONGER PERIODS OF TIME AND AT ANY FUEL TANK LEVEL NOT JUST WHEN IT IS FUL…

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ABOUT 4 MONTHS AGO, AT AROUND 42,000 MILES, AFTER FILLING UP THE FUEL TANK, THE FUEL GAUGE STARTED FLUCTUATING FROM FULL TO EMPTY. FOR A FEW MONTHS THIS WOULD ONLY HAPPEN WHEN THE FUEL TANK WAS ABOVE FULL, BUT LATELY THE FUEL GAUGE WILL DROP TO EMPTY FOR LONGER PERIODS OF TIME AND AT ANY FUEL TANK LEVEL NOT JUST WHEN IT IS FULL. THIS MAKES IT REAL HARD TO KNOW HOW MUCH GAS IS LEFT IN THE TANK AND WOULD MAKE IT POSSIBLE TO RUN OUT OF GAS. *TR

NHTSA ODI #10332648

29,300 miles · May 11, 2010
Power Train

ON MAY 3RD 2010, THE TRUCK JUST DIED IN THE MIDDLE OF THE ROAD WHILE DRIVING HOME WITH MY SON AT NIGHT. I HAD TO QUICKLY TRY TO GET TO THE SIDE OF THE ROAD WITHOUT ANY POWER ASSIST. THE ENVOY WOULD NOT START AGAIN, NOT EVEN TURN OVER. THE SHIFTER WAS LOCKED AND IT COULD NOT EVEN BE PUT INTO NEUTRAL TO PUSH IT OVER TO THE SID…

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ON MAY 3RD 2010, THE TRUCK JUST DIED IN THE MIDDLE OF THE ROAD WHILE DRIVING HOME WITH MY SON AT NIGHT. I HAD TO QUICKLY TRY TO GET TO THE SIDE OF THE ROAD WITHOUT ANY POWER ASSIST. THE ENVOY WOULD NOT START AGAIN, NOT EVEN TURN OVER. THE SHIFTER WAS LOCKED AND IT COULD NOT EVEN BE PUT INTO NEUTRAL TO PUSH IT OVER TO THE SIDE. VARIOUS MESSAGES SCROLLED BY ON THE VEHICLE DISPLAY AND MANY OF THE WARNING LIGHTS WERE DIMLY BLINKING. I HAD TO GET IT TOWED. I SCANNED THE FOLLOWING CODES P1516 & P1682, LOOKED UP THE SYMPTOMS ON THE INTERNET AND FOUND MANY HITS THAT SAID THE ISSUE WAS WITH A FAULTY IGNITION SWITCH. AFTER CHARGING UP THE BATTERY WHICH RAN DOWN ON THE HAZARDS WHILE WAITING AN HOUR FOR A TOW, I REPLACED THE IGNITION SWITCH AND THE ENVOY NOW WORKS AGAIN. IT HAS LESS THAN 30,000 MILES ON IT. THIS TYPE OF FAILURE CONCERNS ME VERY MUCH! I CONSIDER IT A HUGE SAFETY ISSUE THAT A VEHICLE CAN DIE WHILE DRIVING AND THEN BE SO COMPLETELY DISABLED BY A $30 PART. THIS COULD OF HAD MUCH MORE DIRE CONSEQUENCES HAD IT HAPPENED ON A FREEWAY AS OPPOSED TO A SUBURBAN SIDE STREET. *TR

NHTSA ODI #10329876

75,678 miles · Apr 2, 2010
Fuel System, Other

GAS GAUGE FLUCTUATES MAKING IT IMPOSSIBLE TO KNOW THE AMOUNT OF GAS LEFT IN VEHICLE. VEHICLE HAS RUN OUT OF GAS ON HIGHWAY SEVERAL TIMES. GAS SENSOR IS FAULTY ACCORDING TO DEALER.

NHTSA ODI #10323504

40,000 miles · Apr 1, 2010
Fuel System, GasolineVisibility

TL*THE CONTACT OWNS A 2006 GMC ENVOY DENALI. THE CONTACT STATED THAT IN OCTOBER 2009, HE NOTICED THAT THE FUEL GAUGE WOULD "FLUTTER" AND REGISTER THAT IT WAS EMPTY WHEN HE ADDED GASOLINE TO THE FUEL TANK. AFTER CONSUMING FIVE TO SEVEN GALLONS OF FUEL, THE FUEL GAUGE WOULD BEGIN WORKING NORMAL UNTIL THE IT WAS TIME TO ADD THE MAX…

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TL*THE CONTACT OWNS A 2006 GMC ENVOY DENALI. THE CONTACT STATED THAT IN OCTOBER 2009, HE NOTICED THAT THE FUEL GAUGE WOULD "FLUTTER" AND REGISTER THAT IT WAS EMPTY WHEN HE ADDED GASOLINE TO THE FUEL TANK. AFTER CONSUMING FIVE TO SEVEN GALLONS OF FUEL, THE FUEL GAUGE WOULD BEGIN WORKING NORMAL UNTIL THE IT WAS TIME TO ADD THE MAXIMUM AMOUNT OF FUEL IN THE TANK. THE CHECK ENGINE LIGHT ALSO ILLUMINATED AND THE HEATER WOULD BLOW COLD AIR ON THE DRIVER SIDE AND HOT AIR ON THE PASSENGER SIDE. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE SENDING UNIT IN THE FUEL TANK WAS REPLACED AND THE HEATER WAS REPROGRAMMED; HOWEVER, THE HEATER STILL DID NOT FUNCTION PROPERLY. THE VIN WAS UNAVAILABLE. THE FAILURE MILEAGE WAS APPROXIMATELY 40,000. THE CURRENT MILEAGE WAS APPROXIMATELY 46,000.

NHTSA ODI #10323336

15,000 miles · Mar 2, 2010
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2006 GMC ENVOY DENALI XL. THE STABILITY TRACK LIGHT CAME ON AND THE ANTILOCK BRAKES ENGAGED WHEN THE VEHICLE REDUCED SPEED. THE VEHICLE WAS TAKEN TO THE DEALER PREVIOUSLY AND THEY REPROGRAMMED THE COMPUTER. THE FAILURE HAS RECURRED AND THE WARNING LIGHT ILLUMINATED AGAIN. THE DEALER DOES NOT KNOW WHY IT FA…

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TL*THE CONTACT OWNS A 2006 GMC ENVOY DENALI XL. THE STABILITY TRACK LIGHT CAME ON AND THE ANTILOCK BRAKES ENGAGED WHEN THE VEHICLE REDUCED SPEED. THE VEHICLE WAS TAKEN TO THE DEALER PREVIOUSLY AND THEY REPROGRAMMED THE COMPUTER. THE FAILURE HAS RECURRED AND THE WARNING LIGHT ILLUMINATED AGAIN. THE DEALER DOES NOT KNOW WHY IT FAILED AGAIN. THE VIN WAS NOT AVAILABLE. THE FAILURE MILEAGE WAS 15,000.

NHTSA ODI #10315829

61,843 miles · Nov 4, 2009
Service Brakes, Electric

I WAS DRIVING OUR 2006 GMC ENVOY DENALI AT ABOUT 45 MPH WHEN THE LEFT FRONT ABS ACTIVATED. IT WAS AN UNNERVING EXPERIENCE AND HAPPENED SEVERAL TIMES. I HAD THE SENSATION THAT THE VEHICLES WAS INSTANTLY PULLING TO THE LEFT WITH THE ABS DRAGGING THE LEFT FRONT BRAKE. I TOOK IT TO THE DEALER WHO CLEARED 5 CODES RELATED TO THE FR…

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I WAS DRIVING OUR 2006 GMC ENVOY DENALI AT ABOUT 45 MPH WHEN THE LEFT FRONT ABS ACTIVATED. IT WAS AN UNNERVING EXPERIENCE AND HAPPENED SEVERAL TIMES. I HAD THE SENSATION THAT THE VEHICLES WAS INSTANTLY PULLING TO THE LEFT WITH THE ABS DRAGGING THE LEFT FRONT BRAKE. I TOOK IT TO THE DEALER WHO CLEARED 5 CODES RELATED TO THE FRONT ABS SENSORS AND BRAKING SYSTEM. I'M A MEMBER OF AN ONLINE FORUM CALLED WWW.TRAILVOY.COM I SEARCHED THE FORUMS FOR "BRAKE SOFTWARE" AND FOUND MULTIPLE COMPLAINTS THAT REFLECT MY EXPERIENCE. THE DEALER, DANIELS CHEVYLAND TOLD ME THAT THEY HAVE HEARD THIS COMPLAINT, AS WELL. I AM VERY CONCERNED THAT IF THIS OCCURS ON GRAVEL, WET OR ICY ROADS THAT AN ACCIDENT COULD HAPPEN. THE DEALER TOLD ME TO KEEP DRIVING THE VEHICLE TO SEE IF IT HAPPENS AGAIN. THEY SUGGESTED THAT I BRING THE VEHICLE BACK TO HAVE THE BRAKE COMPUTER FIRMWARE UPGRADED IF THE PROBLEM OCCURS AGAIN. THEY WERE NICE ENOUGH TO SAY THAT THEY WILL DISCOUNT THE COST OF THE FIRMWARE. *TR

NHTSA ODI #10291034

75,264 miles · Jul 22, 2009
Fuel System, Other

GAS GAUGE GOES FROM EMPTY TO FULL REPEATEDLY, REGARDLESS OF FUEL LEVEL. VERY COMMON ON ALL GM SUV'S MANUFACTURED IN 2006. LEADS TO VEHICLES RUNNING OUT OF GAS WHEN DRIVERS BELIEVE THEY HAVE A HALF OR QUARTER TANK OF GAS, ETC... *TR

NHTSA ODI #10277894

49,000 miles · Feb 3, 2009
Fuel System, Gasoline

AFTER FILLING GAS TANK, FUEL GAUGE DID NOT OPERATE PROPERLY, GOING FROM EMPTY TO FULL REPEATEDLY. CHECK ENGINE LIGHT CAME ON ALSO. *TR

NHTSA ODI #10257335

Mileage unknown · Nov 29, 2008
Latches/locks/linkages

I AM WRITING IN REGARD TO A FULL SIZED FAMILY VEHICLE THAT I LEASED IN 2006. I LEASED A 3 ROW 2006 ENVOY DENALI XL BY GM. I ALREADY HAD A 14 YEAR OLD SON AND DID NOT THINK I WAS ABLE TO HAVE MORE CHILDREN. HOWEVER, I HAPPILY DISCOVERED THAT MY HUSBAND AND I WERE EXPECTING IN MARCH OF 2007. THE ISSUE WITH MY VEHICLE IS THAT I…

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I AM WRITING IN REGARD TO A FULL SIZED FAMILY VEHICLE THAT I LEASED IN 2006. I LEASED A 3 ROW 2006 ENVOY DENALI XL BY GM. I ALREADY HAD A 14 YEAR OLD SON AND DID NOT THINK I WAS ABLE TO HAVE MORE CHILDREN. HOWEVER, I HAPPILY DISCOVERED THAT MY HUSBAND AND I WERE EXPECTING IN MARCH OF 2007. THE ISSUE WITH MY VEHICLE IS THAT IT DOES NOT HAVE THE LATCH SYSTEM AVAILABLE IN THE CENTER OF THE SECOND ROW, WHICH IS WHERE I BELIEVE THE CARSEAT IS SAFEST. IRONICALLY, MY HUSBAND HAS A 2000 GMC EXTENDED CAB WHICH HAS THE LATCH SYSTEM IN ALL THREE SEATS OF THE 1/2 SECOND ROW. I HAVE CONTACTED THE DEALERSHIP, GM DIRECTLY, ETC. NO ONE HAS A SOLUTION TO THIS ISSUE. MY ARGUMENT IS THAT IF IN A CASH WITH THE CURRENT VEHICLE SPECS, THE SIDE AIRBAGS COULD DEPLOY, THUS HARMING MY DAUGHTER IN THE SIDE POSITION. HOWEVER, I BELIEVE THIS LACK OF THE LATCH SYSTEM IN THE CENTER IS AN OBVIOUS DEFECT THAT SHOULD BE CORRECTED. I WOULD APPRECIATE ANY SUPPORT YOU COULD PROVIDE. *TR

NHTSA ODI #10250117

Mileage unknown · Dec 16, 2007
Air BagsCrash

MY WIFE WAS INVOLVED IN AN ACCIDENT LAST NIGHT IN WHICH THE VEHICLE, A 2006 GMC ENVOY DENALI WAS TOTALED, BUT NEITHER AIR BAD DEPLOYED. *TR

NHTSA ODI #10212037

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.