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Other or unknownPart report

2006 GMC Envoy Denali Other or unknown Problems

Complaints
4about this part
Share
5%of 84 total for the year
Median mileage
104,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the other or unknown of the 2006 GMC Envoy Denali, 5% of the 84 complaints for this model year. Where a mileage was given, the median is 104,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“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”

NHTSA complaint #10809070, filed 2015-12, 104,000 miles

“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.”

NHTSA complaint #10743612, filed 2015-07, 125,000 miles

“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. The consumer stated the pedals are designed differently now. Updated 02/06/07.”

NHTSA complaint #10147667, filed 2006-01, 700 miles

Related service bulletins

Other or unknown: other model years

YearComplaintsShare of year
200713%
200645%

Other parts of the 2006 GMC Envoy Denali

Fuel system
27 complaints
Electrical system
19 complaints
Engine
12 complaints
Suspension
10 complaints
Exterior lighting
8 complaints
Transmission and drivetrain
8 complaints
Electronic stability control
7 complaints
Engine cooling
4 complaints
Visibility (wipers, defrost, mirrors)
4 complaints
Equipment
3 complaints
Steering
3 complaints
Vehicle speed control
3 complaints

← All problems reported for the 2006 GMC Envoy Denali

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology