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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

What owners actually said

84 reports
52,466 miles · Mar 3, 2011
Fuel System, Other

FUEL LEVEL SENSOR FAILED AT JUST OVER 52,000. MILES. FROM MY RESEARCH THIS SEEMS TO BE A RECURRING PROBLEM WITH MANY 2006 GMC OR CHEVROLET VEHICLES FROM THE SAME YEAR RANGE 2005 TO 2006. THE RECOMMENDATION FROM THE DEALERSHIP WAS "IF YOU DON'T WANT TO PAY THE $500.00 PLUS REPAIR ESTIMATE, JUST DO WHAT MANY OTHER PEOPLE ARE DOING…

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FUEL LEVEL SENSOR FAILED AT JUST OVER 52,000. MILES. FROM MY RESEARCH THIS SEEMS TO BE A RECURRING PROBLEM WITH MANY 2006 GMC OR CHEVROLET VEHICLES FROM THE SAME YEAR RANGE 2005 TO 2006. THE RECOMMENDATION FROM THE DEALERSHIP WAS "IF YOU DON'T WANT TO PAY THE $500.00 PLUS REPAIR ESTIMATE, JUST DO WHAT MANY OTHER PEOPLE ARE DOING AND RESET YOUR TRIP METER AT EVERY FILL UP. LOOK TO RE-FUEL BETWEEN 250 AND 300 MILES." IN MY RESEARCH I DISCOVERED A PERSON WHOSE VEHICLE DID THE SAME EXACT THING. HE WAS USING THE TRIP METER AS THE GAUGE AND EVEN WITH FUEL IN THE VEHICLE, HE WAS LEFT STRANDED IN AN INTERSTATE DUE TO AN ENTIRE FUEL SYSTEM FAILURE. SHOULD THIS HAPPEN TO A FAMILY DURING INCLEMENT WEATHER THERE COULD BE SERIOUS SAFETY SITUATIONS. IN LIGHT OF THE FACT THAT THE VEHICLE THAT WE OWN WAS PRICED AT $38,000.00 PLUS MSRP,I WOULD EXPECT THAT THE FUEL SENDING UNIT WOULD PERFORM BEYOND THE 50,000 MILE RANGE. I'M SURE, BY NOW, THAT YOUR ORGANIZATION HAS HEARD FROM OTHER GM OWNERS ABOUT THIS SAME SITUATION. I AM INTERESTED IN YOUR RESPONSE. *TR

NHTSA ODI #10386297

53,029 miles · Jan 10, 2011
EquipmentFuel System, Gasoline

I HAVE A 2006 ENVOY DENALI WITH 53000 MILES, ABOUT 4 WEEKS AGO, I WAS FILING UP WITH GAS, I ALWAYS FILL UP AT 1/2 TANK SINCE I PURCHASED IT IN 06. AFTER FILLING THE GAS GAGE WENT TO EMPTY, AND THEN WOULD GO TO FULL, THEN BACK TO EMPTY. IT DID THIS FOR ABOUT 5 MIN AND THEN WENT TO EMPTY. NOW THE GAGE DO NOT READ CORRECTLY AT ALL,…

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I HAVE A 2006 ENVOY DENALI WITH 53000 MILES, ABOUT 4 WEEKS AGO, I WAS FILING UP WITH GAS, I ALWAYS FILL UP AT 1/2 TANK SINCE I PURCHASED IT IN 06. AFTER FILLING THE GAS GAGE WENT TO EMPTY, AND THEN WOULD GO TO FULL, THEN BACK TO EMPTY. IT DID THIS FOR ABOUT 5 MIN AND THEN WENT TO EMPTY. NOW THE GAGE DO NOT READ CORRECTLY AT ALL, I USE THE TRIP TO KEEP TRACK OF MY MILEAGE AS THE REMAINING MILES FUEL GAGE DOES NOT REGISTER EITHER..... *TR

NHTSA ODI #10375413

80,000 miles · May 11, 2010
Air BagsCrashInjury

TL*THE CONTACT OWNS A 2006 GMC ENVOY DENALI. WHILE DRIVING AT 45 MPH, THE CONTACT CRASHED INTO THE REAR OF ANOTHER VEHICLE. NONE OF THE AIR BAGS DEPLOYED. THE CONTACT SUFFERED HEAD INJURIES AND A POLICE REPORT WAS FILED. THE CONTACT CALLED THE MANUFACTURER AND WAS INFORMED THAT A REPRESENTATIVE WOULD BE SENT TO INSPECT THE VEHIC…

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TL*THE CONTACT OWNS A 2006 GMC ENVOY DENALI. WHILE DRIVING AT 45 MPH, THE CONTACT CRASHED INTO THE REAR OF ANOTHER VEHICLE. NONE OF THE AIR BAGS DEPLOYED. THE CONTACT SUFFERED HEAD INJURIES AND A POLICE REPORT WAS FILED. THE CONTACT CALLED THE MANUFACTURER AND WAS INFORMED THAT A REPRESENTATIVE WOULD BE SENT TO INSPECT THE VEHICLE. THE CURRENT AND FAILURE MILEAGES WERE APPROXIMATELY 80,000.

NHTSA ODI #10329965

15,700 miles · Mar 26, 2010
Exterior Lighting

TL* THE CONTACT OWNS A 2006 GMC ENVOY DENALI. THE CONTACT WAS DRIVING AT APPROXIMATELY 40 MPH, WHEN THE HEADLIGHTS SEEMED TO REFLECT OFF THE WINDSHIELD WHICH HINDERED HIS DRIVING ABILITIES. WHENEVER IT RAINED, SNOWED OR WAS FOGGY OUTSIDE, THE HIGH BEAMS AND FOG LIGHTS WOULD ALSO REFLECT OF THE WIMDSHEILD AND BLIND HIM WHILE HE W…

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TL* THE CONTACT OWNS A 2006 GMC ENVOY DENALI. THE CONTACT WAS DRIVING AT APPROXIMATELY 40 MPH, WHEN THE HEADLIGHTS SEEMED TO REFLECT OFF THE WINDSHIELD WHICH HINDERED HIS DRIVING ABILITIES. WHENEVER IT RAINED, SNOWED OR WAS FOGGY OUTSIDE, THE HIGH BEAMS AND FOG LIGHTS WOULD ALSO REFLECT OF THE WIMDSHEILD AND BLIND HIM WHILE HE WAS DRIVING. HE TOOK THE VEHICLE TO THE DEALERSHIP WHERE THE HIGHBEAMS WERE SUPPLIED WITH BRIGHTER BULBS. WHEN HE CALLED THE MANUFACTURER, HE WAS TOLD THAT WHAT HE WAS EXPERIENCING WAS A NORMAL FUNCTION OF THE VEHICLE. THE CONTACT DID NOT FEEL THAT THE WINDSHIELD WAS A PART OF THE PROBLEM; INSTEAD, HE FELT THAT THE EXTERIOR LIGHTS WERE DEFECTIVE. THE FAILURE MILEAGE WAS APPROXIMATELY 15,700. THE FAILURE MILEAGE WAS APPROXIMATELY 15,800.

NHTSA ODI #10322306

40,029 miles · Nov 9, 2009
Exterior Lighting

HEADLIGHTS FAILED COME ON AFTER AUTO LIGHT FUNCTION ACTIVATED, TOOK APPROXIMATELY 5 MINUTES FOR LIGHTS TO COME ON. *TR

NHTSA ODI #10291563

41,000 miles · Nov 7, 2009
Electrical SystemFuel System, Gasoline

FUEL GAUGE IS MOVING FROM FULL TO EMPTY WHEN THE VEHICLE IS FULL. DEALER IS SAYING IT IS A COMMON PROBLEM, $800 FOR REPAIR IS THE GOING RATE. I HAVE FOUND MAY MORE PEOPLE WITH THE SAME PROBLEM. HTTP://WWW.TOPIX.COM/FORUM/AUTOS/CHEVROLET-TRAILBLAZER/TH8JI6TEPO3VRJI3D . *TR

NHTSA ODI #10291297

Mileage unknown · Jun 4, 2009
Power Train

I HAVE HAD MY GMC ENVOY INTO THE DEALERSHIP ON MULTIPLE OCCASIONS FOR A NOISE COMING FROM THE REAR. I'VE BEEN TOLD THAT IT IS JUST A FLAW IN THE DESIGN BUT IT IS A VERY ANNOYING FLAW. THE NOISE IS A CONSTANT SQUEAL THAT ONLY GOES AWAY IF I TAKE THE VEHICLE OUT OF OVERDRIVE. THE DEALERSHIP SAID FROM ME NOT TO DRIVE THE VEHICLE…

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I HAVE HAD MY GMC ENVOY INTO THE DEALERSHIP ON MULTIPLE OCCASIONS FOR A NOISE COMING FROM THE REAR. I'VE BEEN TOLD THAT IT IS JUST A FLAW IN THE DESIGN BUT IT IS A VERY ANNOYING FLAW. THE NOISE IS A CONSTANT SQUEAL THAT ONLY GOES AWAY IF I TAKE THE VEHICLE OUT OF OVERDRIVE. THE DEALERSHIP SAID FROM ME NOT TO DRIVE THE VEHICLE IN OVERDRIVE BECAUSE THERE WASN'T ANYTHING THEY COULD DO TO FIX IT. AS TIME GOES ON, THE NOISE SEEMS TO BE GETTING LOUDER. *TR

NHTSA ODI #10272837

Mileage unknown · Jun 4, 2009
Power Train

2006 GMC ENVOY DENALI PURCHASED. BEGINNING AT ABOUT 10,000 MILES THE TRANSMISSION WOULD SHIFT ABRUPTLY INTO 1ST GEAR AFTER THE CAR HAD STOPPED MOVING. THIS DOES NOT HAPPEN EVERY TIME BUT DOES HAPPEN OFTEN AND WHEN IT DOES IT FEELS AS IF THE CAR HAS BEEN HIT FROM BEHIND. DEALER HAS NOT BEEN ABLE TO DUPLICATE THE PROBLEM BUT STATE…

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2006 GMC ENVOY DENALI PURCHASED. BEGINNING AT ABOUT 10,000 MILES THE TRANSMISSION WOULD SHIFT ABRUPTLY INTO 1ST GEAR AFTER THE CAR HAD STOPPED MOVING. THIS DOES NOT HAPPEN EVERY TIME BUT DOES HAPPEN OFTEN AND WHEN IT DOES IT FEELS AS IF THE CAR HAS BEEN HIT FROM BEHIND. DEALER HAS NOT BEEN ABLE TO DUPLICATE THE PROBLEM BUT STATES THAT OTHER OWNERS HAVE REPORTED THE SAME PROBLEM. *TR

NHTSA ODI #10272835

10,000 miles · May 10, 2008
Power Train

2006 GMC ENVOY DENALI PURCHASED 12/05. BEGINNING AT ABOUT 10,000 MILES THE TRANSMISSION WOULD SHIFT ABRUPTLY INTO 1ST GEAR AFTER THE CAR HAD STOPPED MOVING. THIS DOES NOT HAPPEN EVERY TIME BUT WHEN IT DOES IT FEELS AS IF THE CAR HAS BEEN HIT FROM BEHIND. DEALER HAS NOT BEEN ABLE TO DUPLICATE THE PROBLEM BUT STATES THAT OTHER …

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2006 GMC ENVOY DENALI PURCHASED 12/05. BEGINNING AT ABOUT 10,000 MILES THE TRANSMISSION WOULD SHIFT ABRUPTLY INTO 1ST GEAR AFTER THE CAR HAD STOPPED MOVING. THIS DOES NOT HAPPEN EVERY TIME BUT WHEN IT DOES IT FEELS AS IF THE CAR HAS BEEN HIT FROM BEHIND. DEALER HAS NOT BEEN ABLE TO DUPLICATE THE PROBLEM BUT STATES THAT OTHER OWNERS HAVE REPORTED THE SAME PROBLEM. *TR

NHTSA ODI #10227208

10,266 miles · May 23, 2007
Vehicle Speed ControlCrash

TL*THE CONTACT OWNS A 2006 GMC ENVOY DENALI. WHILE ATTEMPTING TO DECELERATE FROM APPROXIMATELY 3-5 MPH, THE VEHICLE ACCELERATED AND STRUCK THE REAR OF ANOTHER VEHICLE. CURRENTLY, THE DEALER HAS THE VEHICLE AND IS UNABLE TO DUPLICATE THE FAILURE. THE ENGINE SIZE WAS UNKNOWN. THE CURRENT AND FAILURE MILEAGES WERE 10,266.

NHTSA ODI #10191571

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.