MY GMC ENVOY DENALI 2006 USES UP TO 2 TO 3 QUARTS OF OIL IN A 30 DAY PERIOD. I HAVE NO LEAKS OR EXHAUST PROBLEMS. IT FINALLY COLLAPSED A LIFTER AND PUSH ROD. SAYS THERE IS NO NOTICE OR RECALL, BUT THE IS THE SAME ENGINE THEY USED IN THE 2003 PONTIAC, THEY DID RECALL THOSE MOTORS. DOES ANY ONE HAVE SOME HELP FOR ME? *TR
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
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.
What owners actually said
84 reportsTL* THE CONTACT OWNS A 2006 GMC ENVOY DENALI. THE CONTACT STATED THAT THE VEHICLE WAS EQUIPPED WITH AN AIR SHOCK SYSTEM. WHILE DRIVING AT ANY SPEED, ALL OF THE AIR WOULD ESCAPE FROM THE SHOCK SYSTEM AND THE VEHICLE WOULD DROP DOWNWARD. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THE CONTACT WAS INFORMED THAT THERE WAS A …
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TL* THE CONTACT OWNS A 2006 GMC ENVOY DENALI. THE CONTACT STATED THAT THE VEHICLE WAS EQUIPPED WITH AN AIR SHOCK SYSTEM. WHILE DRIVING AT ANY SPEED, ALL OF THE AIR WOULD ESCAPE FROM THE SHOCK SYSTEM AND THE VEHICLE WOULD DROP DOWNWARD. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THE CONTACT WAS INFORMED THAT THERE WAS A LEAK WITHIN THE AIR SHOCK SYSTEM. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 64,000.
REDUCED POWER LIGHT CAME ON WHEN ON THE HIGHWAY. ALMOST GOT HIT BY A SEMI. THIS HAS HAPPENED MANY TIMES. THE ENGINE HAS ONLY 8K MILES SINCE ENGINE WAS REPLACED UNDER WARRANTY. *TR
FUEL GAUGE STAYS ON EMPTY AFTER FILLING THE GAS TANK. IT MAY ALTERNATE FROM FULL TO EMPTY INTERMITTENTLY. *TT
ABOUT THREE MONTHS AGO THE FUEL GAUGE, AFTER FILLING THE TANK, WOULD READ EMPTY FOR A PERIOD OF TIME. THEN THE GAUGE WOULD READ FULL, THEN IT WOULD GO BACK TO EMPTY. THIS WOULD CONTINUE FOR A SHORT PERIOD OF TIME AND EVENTUALLY THE CORRECT (I ASSUMED) LEVEL WOULD BE SHOWN UNTIL THE NEXT FILL UP. AS TIME HAS PASSED, IT TAKES LONG…
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ABOUT THREE MONTHS AGO THE FUEL GAUGE, AFTER FILLING THE TANK, WOULD READ EMPTY FOR A PERIOD OF TIME. THEN THE GAUGE WOULD READ FULL, THEN IT WOULD GO BACK TO EMPTY. THIS WOULD CONTINUE FOR A SHORT PERIOD OF TIME AND EVENTUALLY THE CORRECT (I ASSUMED) LEVEL WOULD BE SHOWN UNTIL THE NEXT FILL UP. AS TIME HAS PASSED, IT TAKES LONGER FOR THE GAUGE TO FINALLY SETTLE DOWN AND READ NORMALLY. I HAVE NOW RECEIVED A LETTER FROM GMC STATING THEY ARE AWARE OF THE PROBLEM AND WILL PAY FOR HALF THE REPAIR COST. MY QUESTION IS THAT IF THIS IS A PREMATURE FAILURE, AS THE LETTER STATES, WHY GMC IS NOT RESPONSIBLE FOR 100% OF THE COST. THE LETTER ALSO STATES THAT THE FUEL LEVEL SHOWN MAY READ MORE THAN THE ACTUAL LEVEL. COULD LEAD TO RUNNING OUT OF FUEL ON THE INTERSTATE, GETTING IN AN ACCIDENT TRYING TO GET OFF THE ROAD, AND/OR INJECTOR DAMAGE. *TR
TL* THE CONTACT OWNS A 2006 GMC ENVOY DENALI. THE CONTACT STATED THAT AFTER REFUELING, THE FUEL GAUGE DISPLAYED A READING OF EMPTY AND THE CHECK ENGINE LIGHT ILLUMINATED. THE FUEL GAUGE HAD SINCE CONSTANTLY DISPLAYED INACCURATE READINGS. THE CONTACT REPLACED THE FUEL CAP, BUT THE FAILURE CONTINUED. THE VEHICLE WAS NOT TAKEN TO H…
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TL* THE CONTACT OWNS A 2006 GMC ENVOY DENALI. THE CONTACT STATED THAT AFTER REFUELING, THE FUEL GAUGE DISPLAYED A READING OF EMPTY AND THE CHECK ENGINE LIGHT ILLUMINATED. THE FUEL GAUGE HAD SINCE CONSTANTLY DISPLAYED INACCURATE READINGS. THE CONTACT REPLACED THE FUEL CAP, BUT THE FAILURE CONTINUED. THE VEHICLE WAS NOT TAKEN TO HAVE THE FAILURE DIAGNOSED, BUT THE CONTACT RECEIVED A LETTER FROM THE MANUFACTURER ACKNOWLEDGING THAT THEY WERE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 15,000. THE VIN WAS UNAVAILABLE.
TL* THE CONTACT OWNS A 2006 GMC ENVOY DENALI. THE CONTACT STATED THAT WHILE DRIVING 35 MPH, THE CHECK ENGINE WARNING LIGHT ILLUMINATED AND THE ENGINE STALLED. THE VEHICLE WAS REPAIRED BY THE DEALER WHO REPLACED THE SENSOR IN THE THROTTLE BODY. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE WHO ADVISED THAT THERE WERE NO RECALLS AN…
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TL* THE CONTACT OWNS A 2006 GMC ENVOY DENALI. THE CONTACT STATED THAT WHILE DRIVING 35 MPH, THE CHECK ENGINE WARNING LIGHT ILLUMINATED AND THE ENGINE STALLED. THE VEHICLE WAS REPAIRED BY THE DEALER WHO REPLACED THE SENSOR IN THE THROTTLE BODY. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE WHO ADVISED THAT THERE WERE NO RECALLS AND OFFERED NO FURTHER ASSISTANCE. THE FAILURE MILEAGE WAS 84,000 AND THE CURRENT MILEAGE WAS 93,000.
I BOUGHT A USED 2006 GMC ENVOY DENALI WITH 69,000 MILES IN JUNE 2010, BY JULY I WAS REPLACING THE AIR SHOCKS ON THE RIGHT SIDE OF THE VEHICLE. ON ABOUT 7/28/2011 ON THE BELTWAY WHERE THE SPEED LIMIT IS 65 I WAS IN THE FAR LEFT LANE APPROACHING A LEFT HAND EXIT WHEN MY CAR STALLED, I HAD RUN OUT OF GAS WITH NO INDICATION. I WAITE…
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I BOUGHT A USED 2006 GMC ENVOY DENALI WITH 69,000 MILES IN JUNE 2010, BY JULY I WAS REPLACING THE AIR SHOCKS ON THE RIGHT SIDE OF THE VEHICLE. ON ABOUT 7/28/2011 ON THE BELTWAY WHERE THE SPEED LIMIT IS 65 I WAS IN THE FAR LEFT LANE APPROACHING A LEFT HAND EXIT WHEN MY CAR STALLED, I HAD RUN OUT OF GAS WITH NO INDICATION. I WAITED OVER AN HOUR FOR SOMEONE TO COME PUT GAS IN MY TRUCK IN ABOUT 100 DEGREE TEMPATURE. I LATER RAN OUT OF GAS ON A BACK ROAD COMING TO MY HOUSE AT NIGHT. AGAIN NO INDICATOR LIGHT CAME ON TO LET ME KNOW I WAS LOW ON GAS. NOW THE GAS GAUGE FLOATS BETWEEN FULL AND EMPTY CONTIONUSLY. THIS WAS A VERY DANGEROUS AND SCARY SITUATION BOTH TIMES. MY FLASHERS WERE ON THE WHOLE TIME AND I HAD TO CHANGE THE BATTERY. NOW THE AIR WILL NOT COME OUT OF THE VENTS ONLY THE FLOOR AND DEFROST. BUT THE MOST IMPORTANT THING IS THE GAS GAUGE, I COULD HAVE BEEN INVOLVED IN AN ACCIDENT BOTH TIMES. *KB
2006 ENVOY DENALI. CONSUMER WRITES STATES GAS NEEDLE STOPPED FUNCTIONING *TGW THE CONSUMER STATED THE GAS NEEDLE BEGAN TO FLUCTUATE IN THE BEGINNING AND SINCE THAT TIME, THE NEEDLE HAS BEEN STUCK ON EMPTY, AND THE ENGINE LIGHT ILLUMINATED AS A RESULT. IN MARCH OF 2009, WHEN THE CONSUMER STARED THE VEHICLE, IT SOUNDED AS IF THER…
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2006 ENVOY DENALI. CONSUMER WRITES STATES GAS NEEDLE STOPPED FUNCTIONING *TGW THE CONSUMER STATED THE GAS NEEDLE BEGAN TO FLUCTUATE IN THE BEGINNING AND SINCE THAT TIME, THE NEEDLE HAS BEEN STUCK ON EMPTY, AND THE ENGINE LIGHT ILLUMINATED AS A RESULT. IN MARCH OF 2009, WHEN THE CONSUMER STARED THE VEHICLE, IT SOUNDED AS IF THERE WAS SOMETHING METAL TUMBLING AROUND UNDER THE HOOD. UPON INSPECTION OF THE VEHICLE, IT WAS DETERMINED THE ENGINE NEEDED TO BE REPLACED. ON JUNE 10, 2010, THE VEHICLE WOULD NOT START AND HAD TO BE TOWED TO THE DEALER. AN INSPECTION REVEALED A STARTER WAS NEEDED. ALSO, AN ALIGNMENT WAS DONE AND THE REAR BRAKE LIGHT WAS REPLACED. ON JUNE 12, 2010, THE VEHICLE WOULD NOT COME OUT OF PARK. AFTER 25 MINUTES AND OVER 50 ATTEMPTS, IT FINALLY CAME OUT OF PARK. THE CONSUMER DROVE TO THE DEALER, BUT THEY WERE UNABLE TO FIND A PROBLEM. SEPTEMBER 2010, THE CONSUMER NOTICED THE REAR OF THE TRUCK WAS SITTING VERY LOW. THE REAR END AIR SUSPENSION NEEDED TO BE REPLACED. THE AIR CONDITION RANDOMLY WORKED. THERE WERE TIMES WHERE THE AIR WOULD JUST START BLOWING AND NO BUTTONS WERE PUSHED. ALSO, THE DEFROSTER STOPPED WORKING. THE CONSUMER CONTINUED TO EXPERIENCE PROBLEMS WITH THE VEHICLE NOT COMING OUT OF PARK. *JB
REAR AIR SHOCKS THAT BLED DOWN AFTER SITTING FOR EXTENDED PERIODS OF TIME. TOOK TO DEALER FOR EVALUATION AND WAS INFORMED THAT THE AIR SHOCKS NEEDED REPLACEMENT. WAS ALSO INFORMED THAT NORMALLY THE AIR COMPRESSOR IS REPLACED ALSO BECAUSE IT IS THE CAUSE OF THE LEAKING. I DECIDED COST WAS TOO GREAT SO I CHOSE TO ADD SPRINGS IN…
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REAR AIR SHOCKS THAT BLED DOWN AFTER SITTING FOR EXTENDED PERIODS OF TIME. TOOK TO DEALER FOR EVALUATION AND WAS INFORMED THAT THE AIR SHOCKS NEEDED REPLACEMENT. WAS ALSO INFORMED THAT NORMALLY THE AIR COMPRESSOR IS REPLACED ALSO BECAUSE IT IS THE CAUSE OF THE LEAKING. I DECIDED COST WAS TOO GREAT SO I CHOSE TO ADD SPRINGS IN PLACE OF REAR AIR SHOCKS AND WAS INFORMED THAT THE AIR COMPRESSOR WOULD CONTINUE TO FUNCTION. NOW THE AIR COMPRESSOR DOES NOT WORK, TOOK BACK TO DEALER TO FIND OUT WHAT THE PROBLEM IS AND WAS INFORMED THAT ONCE THE REAR AIR SHOCKS ARE REMOVED THE AIR COMPRESSOR IS DISABLED. *KB
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.
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