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2006 GMC Envoy Denali Xl

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

37 reports with mileage · 5 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.

  • Fuel System, Gasoline. Review the 13 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 5 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

2 crash reports1 fire reports0 injury reports

Fuel System, Gasoline complaints

13 reports
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40,000 miles · Apr 1, 2010
Fuel System, GasolineVisibility

TL*THE CONTACT OWNS A 2006 GMC ENVOY DENALI. THE CONTACT STATED THAT IN OCTOBER 2009, HE NOTICED THAT THE FUEL GAUGE WOULD "FLUTTER" AND REGISTER THAT IT WAS EMPTY WHEN HE ADDED GASOLINE TO THE FUEL TANK. AFTER CONSUMING FIVE TO SEVEN GALLONS OF FUEL, THE FUEL GAUGE WOULD BEGIN WORKING NORMAL UNTIL THE IT WAS TIME TO ADD THE MAX…

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TL*THE CONTACT OWNS A 2006 GMC ENVOY DENALI. THE CONTACT STATED THAT IN OCTOBER 2009, HE NOTICED THAT THE FUEL GAUGE WOULD "FLUTTER" AND REGISTER THAT IT WAS EMPTY WHEN HE ADDED GASOLINE TO THE FUEL TANK. AFTER CONSUMING FIVE TO SEVEN GALLONS OF FUEL, THE FUEL GAUGE WOULD BEGIN WORKING NORMAL UNTIL THE IT WAS TIME TO ADD THE MAXIMUM AMOUNT OF FUEL IN THE TANK. THE CHECK ENGINE LIGHT ALSO ILLUMINATED AND THE HEATER WOULD BLOW COLD AIR ON THE DRIVER SIDE AND HOT AIR ON THE PASSENGER SIDE. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE SENDING UNIT IN THE FUEL TANK WAS REPLACED AND THE HEATER WAS REPROGRAMMED; HOWEVER, THE HEATER STILL DID NOT FUNCTION PROPERLY. THE VIN WAS UNAVAILABLE. THE FAILURE MILEAGE WAS APPROXIMATELY 40,000. THE CURRENT MILEAGE WAS APPROXIMATELY 46,000.

NHTSA ODI #10323336

49,000 miles · Feb 3, 2009
Fuel System, Gasoline

AFTER FILLING GAS TANK, FUEL GAUGE DID NOT OPERATE PROPERLY, GOING FROM EMPTY TO FULL REPEATEDLY. CHECK ENGINE LIGHT CAME ON ALSO. *TR

NHTSA ODI #10257335

21,000 miles · Oct 15, 2007
Fuel System, Gasoline

WHILE DRIVING, CHECK ENGINE LIGHT CAME ON. FUEL TANK GAUGE STARTED TO CONTINUALLY SHIFT FROM WHATEVER STATE THE FUEL TANK WAS IN TO EMPTY THEN AFTER SOME TIME REVERT BACK TO NORMAL FUEL CAPACITY AT THE TIME. CONTACTED ONSTAR FOR A DIAGNOSTIC AND THEY STATED THERE IS A PROBLEM WITH THE FUEL SENDING UNIT. *JB

NHTSA ODI #10205775

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.