2006 GMC Envoy Denali problems & reliability
84 owner complaints filed with NHTSA for the 2006 GMC Envoy Denali. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
1 complaint report injuries (1 injured).
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Electrical System | 19 | 23% |
| Fuel System, Gasoline | 18 | 21% |
| Engine | 12 | 14% |
| Suspension | 10 | 12% |
| Exterior Lighting | 8 | 10% |
| Power Train | 8 | 10% |
| Electronic Stability Control (esc) | 7 | 8% |
| Fuel/propulsion System | 7 | 8% |
| Engine and Engine Cooling | 4 | 5% |
| Unknown OR Other | 4 | 5% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 80,973 miles (middle 50% between 50,039 and 109,910 miles), based on 70 complaints that included mileage.
Complaints by incident year
What owners report
“Takata recall ? Air ride suspension failure, over inflation resulting in a excessive bouncing ride and loss of traction on other sites I see that this was a 92% complain rate”
Suspension · filed Jul 7, 2018
“My 2006 envoy denali's low beam lights are cutting out on me at night. I've read several cases on the internet that there was a recall on this. I'm concerned that this situation may cause an accident at night unexpectany.”
Exterior Lighting · filed Feb 28, 2018
“Tl* the contact owns a 2006 gmc envoy denali. The contact stated that the vehicle failed to start and all the warning indicators illuminated. The contact mentioned that when the vehicle would start, it would cut off immediately. The vehicle was taken to betten baker chevrolet buick gmc (14120 northland dr, big rapids…”
Electrical System · filed Oct 23, 2017
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- Fuel Level Gauge System Failure
Defect Petition DP10001 · opened Jan 7, 2010 · closed May 23, 2011
Technical service bulletins
140 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2006 GMC Envoy Denali. The 10 most recent:
This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
PIP5601C · Service Bulletin/Repair Instructions · issued Jul 18, 2025
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
PIT5074R · Service Bulletin/Repair Instructions · issued May 30, 2025
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
PIT5074R · Service Bulletin/Repair Instructions · issued May 30, 2025
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
PIT5074R · Service Bulletin/Repair Instructions · issued May 30, 2025
This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. and Canada Dealers Only).
02-00-89-002X · Service Bulletin/Repair Instructions · issued Sep 9, 2024
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized…
PIT3271P · Service Bulletin/Repair Instructions · issued Sep 6, 2024
Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to…
General Communication · Service Campaign · issued Aug 26, 2024
This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
01-06-01-011P · Service Bulletin/Repair Instructions · issued Aug 5, 2024
GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This…
24-NA-141 · Service Bulletin/Repair Instructions · issued Jul 24, 2024
This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how…
16-NA-383 · Service Bulletin/Repair Instructions · issued Jun 28, 2024
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
No NHTSA recall campaigns name the 2006 GMC Envoy Denali in our current data. Recalls may apply only to certain VIN ranges — always confirm with a VIN check.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2006 GMC Envoy Denali?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 80,973 miles — budget accordingly if the car is approaching that mileage.