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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

Electrical System complaints

6 reports
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165,043 miles · Feb 10, 2017
Electrical SystemElectronic Stability Control (esc)Vehicle Speed Control

THE VEHICLE WILL ABRUPTLY GO FROM 70 MPH TO 30'S (SEMI-TRAILER CLOSING IN FAST) AND I CAN'T DO A THING ABOUT IT!! SERVICE STABILITRACK HAS BEEN A THORN WHILE UNDER WARRANTY AND PERSISTS TO BE A PROBLEM NOW THAT IT IS OUT OF WARRANTY! FROM EARLY ON, <10,000 MILES AND OVER 10 TIMES SINCE, THIS VEHICLE HAD BEEN IN TO TWO DIFFERENT …

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THE VEHICLE WILL ABRUPTLY GO FROM 70 MPH TO 30'S (SEMI-TRAILER CLOSING IN FAST) AND I CAN'T DO A THING ABOUT IT!! SERVICE STABILITRACK HAS BEEN A THORN WHILE UNDER WARRANTY AND PERSISTS TO BE A PROBLEM NOW THAT IT IS OUT OF WARRANTY! FROM EARLY ON, <10,000 MILES AND OVER 10 TIMES SINCE, THIS VEHICLE HAD BEEN IN TO TWO DIFFERENT DEALERS AND THE PROBLEM, THOUGH INTERMITTENT, STILL EXISTS AND IS A HUGE DANGER TO ME AND MY KIDS BUT I CAN'T JUST GO BUY ANOTHER CAR OR TRADE THIS IN LIKE SOME PEOPLE (INCLUDING THE CAR DEALERSHIP MANAGERS) PORTRAY IS THE BEST OPTION WHEN I SHOULD BE ABLE TO GET GM TO FIX THE CAR OR REPLACE IT WHEN THEY CAN'T SEEM TO FIGURE OUT WHY THE PROBLEM PERSISTS. BUT THAT HASN'T BEEN THE ONLY PROBLEM: GEAR BAND BROKE TWICE ON THE TRANSMISSION, HAD TO HAVE TRANSMISSION REBUILT BECAUSE OF FAULTY RADIATOR, AND OTHER ISSUES HOWEVER NONE OF THE PROBLEMS REMOTELY COMPARE TO HAVING TAKEN IT IN FOR SERVICE BECAUSE OF THE REPEATED UNEXPLAINED DE-ACCELERATION AND LOSS OF ABILITY TO MAKE THE CAR DO ANYTHING EXCEPT PULL TO THE SIDE OF THE ROAD AND GIVE IT TEN MINUTES TO STOP HAVING A "TANTRUM" OF SORTS WHILE TRAFFIC WHIZZES BY AND THANKFULLY DIDN'T HIT US (YET). EXTERIOR / AESTHETICS, I LOVE THIS VEHICLE BUT POOR FUNCTION AND EVEN WORSE SERVICE OF PROBLEMS. I'VE REPORTED IT TO CORPORATE BUT THEY DON'T CARE AND DESPITE IT HAVING HAD BEEN INTO THE DEALERSHIP NUMEROUS TIMES PRIOR TO END OF WARRANTY, NOW THEY JUST WANT ME TO START PAYING THEM FOR ALL THESE FIXES THAT HAVEN'T FIXED ANYTHING. ONCE I STARTED PAYING FOR FIXES AND THEN STARTED COMPLAINING THAT THEY AREN'T COVERING WHAT THEY'VE NEVER FIXED; THE MANAGER HAD THE NERVE TO SAY HE'D PAY FOR IT OUT OF HIS OWN POCKET IF HE KNEW IT WOULD FIX IT ... HELLO... WHY SHOULD THE CONSUMER PAY FOR IT WHEN THE PROBLEM IS NEVER REALLY FIXED.

NHTSA ODI #10953871

87,000 miles · Jun 13, 2016
Electrical SystemExterior LightingSuspension

WHILE DRIVING, IN PITCH BLACK DARKNESS ON 6/10/2016 AROUND 1:00 AM, MY HEADLIGHTS SUDDENLY WENT OFF. THE ONLY WAY I COULD OBTAIN LIGHTS WAS USING THE HIGH BEAMS. LOW BEAMS DO NOT WORK AND HIGH BEAM ONLY WORKS IN MANUAL ON/OFF MODE. WE CHECKED THE LAMPS AND FUSES. ALL ARE IN EXCELLENT CONDITION. I HAVE NO LIGHTS WHILE DRIVING OR …

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WHILE DRIVING, IN PITCH BLACK DARKNESS ON 6/10/2016 AROUND 1:00 AM, MY HEADLIGHTS SUDDENLY WENT OFF. THE ONLY WAY I COULD OBTAIN LIGHTS WAS USING THE HIGH BEAMS. LOW BEAMS DO NOT WORK AND HIGH BEAM ONLY WORKS IN MANUAL ON/OFF MODE. WE CHECKED THE LAMPS AND FUSES. ALL ARE IN EXCELLENT CONDITION. I HAVE NO LIGHTS WHILE DRIVING OR IN PARK. THE SIDE VIEW MIRRORS MOVE ON THERE OWN AND AT ANY TIME, WHILE DRIVING , IN PARK AND WHEN THE CAR IS NOT RUNNING. THIS HAS BEEN GOING ON SINCE THE DOOR PANEL RECALL WAS REPAIRED. THE DEALER HAS INFORMED ME THAT THERE IS NO RECALL ON THAT EITHER. LAST YEAR (2015) I HAD TO REPLACE THE AIRBAGS (SUSPENSION) ON BOTH REAR WHEELS. THE CAR WOULD DROP DOWN LOWER THAN ANY MID SIZE CAR. ONCE STARTED THE BAGS WOULD INFLATE BUT THE CAR MAY DROP AT ANY GIVE TIME WHILE DRIVING. GM DID NOT COVER THIS COST AND THE DEALER WANTED OVER $1200.00 TO REPAIR. PRIOR TO THAT THE GAS GAUGE QUIT WORKING. WHICH GM DID COVER THE REPAIR COST BUT I NEVER RECEIVED A RECALL. I JUST HAPPENED TO BE AT THE DEALER FOR THE DRIVER DOOR RECALL AND MENTIONED IT.

NHTSA ODI #10874048

109,000 miles · Mar 13, 2015
Electrical SystemFuel/propulsion System

FUEL GAUGE GOES TO EMPTY WHEN FULL STOPPED IN TRAFFIC ON I75 WITH GRAND BABIES THEY SAY ITS THE FUEL SENSOR AND SENDING UNITS ARE BAD. *TR

NHTSA ODI #10694028

Mileage unknown · Jun 22, 2014
Electrical System

WHEN WEATHER TURNED COLD THE VEHICLE WOULD STALL AND SHUT OFF FOR NO REASON. IN ADDITION TO GAS GAUGE STOPPED WORKING. *TR

NHTSA ODI #10605007

128,623 miles · Feb 13, 2013
Electrical SystemEngineEquipment

TL* THE CONTACT OWNS A 2006 GMC ENVOY DENALI XL. THE CONTACT STATED THAT THE VEHICLE FAILED TO ACCELERATE OVER 40 MPH. THE CONTACT ALSO STATED THAT THE ENGINE AND THE LOW FUEL WARNING LIGHTS ILLUMINATED ALTHOUGH THE FUEL LEVEL WAS AT MAX. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE CONTACT WAS INFORMED THAT THE THROTTLE BODY A…

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TL* THE CONTACT OWNS A 2006 GMC ENVOY DENALI XL. THE CONTACT STATED THAT THE VEHICLE FAILED TO ACCELERATE OVER 40 MPH. THE CONTACT ALSO STATED THAT THE ENGINE AND THE LOW FUEL WARNING LIGHTS ILLUMINATED ALTHOUGH THE FUEL LEVEL WAS AT MAX. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE CONTACT WAS INFORMED THAT THE THROTTLE BODY AND FUEL PUMP NEEDED TO BE REPLACED. THE FAILURE MILEAGE WAS 128,623 AND THE CURRENT MILEAGE WAS 138,182...UPDATED 04-03-13 *BF UPDATED 04/22/2013 *JS

NHTSA ODI #10498043

20,000 miles · Jan 4, 2013
Electrical SystemEnginePower Train

VEHICLE GOES INTO REDUCED ENGINE POWER MODE UNEXPECTEDLY WHILE DRIVING WITH NO PRIOR WARNING. MIL LIGHT TURNS ON, REDUCED ENGINE POWER LIGHT TURNS ON, STABILITRAK OFF DIC MESSAGE DISPLAYS, RESULTS IN LOSS OF ACCELERATION AND REQUIRES THE DRIVER TO IMMEDIATELY TAKE EMERGENCY SAFETY ACTIONS. CODES INCLUDE P2135, P0121, AND P060E…

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VEHICLE GOES INTO REDUCED ENGINE POWER MODE UNEXPECTEDLY WHILE DRIVING WITH NO PRIOR WARNING. MIL LIGHT TURNS ON, REDUCED ENGINE POWER LIGHT TURNS ON, STABILITRAK OFF DIC MESSAGE DISPLAYS, RESULTS IN LOSS OF ACCELERATION AND REQUIRES THE DRIVER TO IMMEDIATELY TAKE EMERGENCY SAFETY ACTIONS. CODES INCLUDE P2135, P0121, AND P060E. ISSUE IS INTERMITTENT, APPEARS MORE FREQUENTLY IN COLD OR WET CONDITIONS. THE ISSUE HAS OCCURRED MORE THAN 10 TIMES SINCE THE INITIAL INCIDENT. DEALER UNABLE TO CORRECT THE ISSUE BY THROTTLE BODY CLEANING AND PCM REPLACEMENT. LATEST ATTEMPT IS TO REPLACE THE THROTTLE BODY. *TR

NHTSA ODI #10491433

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.