IllustrationHEAT NOT BLOWING HOT LIKE PASSENDER SIDE
2006 GMC Envoy Denali
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 Envoy Denali 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
100–25K
925–50K
1250–75K
1775–100K
19100–150K
5150K+
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
Unknown Or Other complaints
4 reports2 PROBLEMS WITH MY 06 ENVOY DENALI. MY BATTERY DIED AND AFTER JUMPING THE VEHICLE, ALL FRONT VENTS WILL NO LONGER BLOW AIR FROM THEM. ONLY TOP AND FLOOR WORK!. ALSO MYSTERIOUSLY DISAPPEARING OIL. APPARENTLY FAULTY PVC VALVE COVER NOW CAUSED ENGINES DAMAGED. NEEDS REPLACING AT $6700!!! THIS SHOULD HAVE BEEN A RECALL! NOW I'M STUC…
Read full complaint
2 PROBLEMS WITH MY 06 ENVOY DENALI. MY BATTERY DIED AND AFTER JUMPING THE VEHICLE, ALL FRONT VENTS WILL NO LONGER BLOW AIR FROM THEM. ONLY TOP AND FLOOR WORK!. ALSO MYSTERIOUSLY DISAPPEARING OIL. APPARENTLY FAULTY PVC VALVE COVER NOW CAUSED ENGINES DAMAGED. NEEDS REPLACING AT $6700!!! THIS SHOULD HAVE BEEN A RECALL! NOW I'M STUCK WITH A VEHICLE I CANT DRIVE OR FIX AND STILL OWE 11,900 ON IT. OWNED IT 9MOS! WARRANTY DOESN'T WANT TO COVER THIS ISSUE
TOOK VEHICLE IN FOR BATTERY CHANGE, AFTER RECEIVING VEHICLE BACK, NOTICED THAT DASH VENTS WOULD NOT OPERATE, DEFROSTERS AND FLOOR VENTS STILL WORK, CONTACTED GM- THEY ACKNOWLEDGED THERE MIGHT BE A PROBLEM WITH BLEND DOOR ACTUATOR, BUT NEEDED TO SEE VEHICLE FOR REPAIRS, ESTIMATED COST- $1000.00. DID ONLINE CHECKING, THIS IS A RE…
Read full complaint
TOOK VEHICLE IN FOR BATTERY CHANGE, AFTER RECEIVING VEHICLE BACK, NOTICED THAT DASH VENTS WOULD NOT OPERATE, DEFROSTERS AND FLOOR VENTS STILL WORK, CONTACTED GM- THEY ACKNOWLEDGED THERE MIGHT BE A PROBLEM WITH BLEND DOOR ACTUATOR, BUT NEEDED TO SEE VEHICLE FOR REPAIRS, ESTIMATED COST- $1000.00. DID ONLINE CHECKING, THIS IS A RECURRING PROBLEM WITH GM DAMPER MOTORS FAILING, OFTEN AFTER BATTERY CHANGE. ONLY SOLUTION IS CHANGE DAMPER MOTOR.
DT: THE CONTACT STATED THE ACCELERATOR PEDAL IN THE VEHICLE BECAME STUCK UNDER THE FLOOR MAT. THE CONTACT STATED THE FLOOR MATS WERE TOO BIG. THE VEHICLE WAS TAKEN TO THE DEALERSHIP AND THERE WAS NOTHING THAT COULD BE DONE ABOUT THE PROBLEM.*AK THE CONSUMER STATED THE PEDALS ARE DESIGNED DIFFERENTLY NOW. UPDATED 02/06/07. *JB…
Read full complaint
DT: THE CONTACT STATED THE ACCELERATOR PEDAL IN THE VEHICLE BECAME STUCK UNDER THE FLOOR MAT. THE CONTACT STATED THE FLOOR MATS WERE TOO BIG. THE VEHICLE WAS TAKEN TO THE DEALERSHIP AND THERE WAS NOTHING THAT COULD BE DONE ABOUT THE PROBLEM.*AK THE CONSUMER STATED THE PEDALS ARE DESIGNED DIFFERENTLY NOW. UPDATED 02/06/07. *JB
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
1DP10001 · 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.