Electrical System. Review the 18 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Exterior Lighting. Review the 17 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Electronic Stability Control (esc). 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.

5 crash reports4 fire reports4 injury reports

Engine And Engine Cooling complaints

8 reports

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172,000 miles · Mar 8, 2015

Engine And Engine CoolingPower Train

CHECK ENGINE LIGHT IS ON. ACCORDING TO TESTS IT IS THE RESULT OF A DEFECTIVE THROTTLE POSITION SENSOR. THE LIGHT WILL STAY ON FOR A COUPLE OF DAYS AND THEN GO OFF FOR A COUPLE OF DAYS CREATING A ERROR MESSAGE THAT SOMETHING IS WRONG WITH THE ENGINE. WITH IT GOING ON AND COMING OFF IT IS NOW DIFFICULT FOR ME TO GET MY INSPECTI…

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NHTSA ODI #10692879

118,106 miles · Sep 16, 2014

Engine And Engine Cooling

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GMC USED CHEAP BOLTS ON THEIR V8 MOTOR'S EXHAUST MANIFOLDS. I HAVE TWO BROKEN BOLTS ON ONE SIDE AND 1 ON THE OTHER. CARR OF VANCOUVER GAVE ME A QUOTE OF $ 2374.00 PLUS TAX TO FIX THIS PROBLEM. THEY SAID IT WAS A WELL KNOWN PROBLEM WITH ALL OF THE V8 MOTORS BY GMC. I CONTACTED GMC AND THEY REFUSE TO DO ANYTHING ABOUT THIS. I HAVE RESEARCHED IT ON THE INTERNET AND THERE ARE HUNDREDS OF PEOPLE WHO HAVE HAD THIS SAME PROBLEM. THE QUESTION ISN'T IF THIS WILL HAPPEN TO ONE OF THEIR VEHICLES BUT WHEN IT WILL HAPPEN. IT IS SUCH A WIDE AND KNOWN PROBLEM A COMPANY HAS ACTUALLY MADE CAME OUT WITH A BRACKET TO FIX THIS PROBLEM. I DON'T FEEL THAT THIS SHOULD BE A CONSUMER PROBLEM BUT IT SHOULD BE A MANUFACTURER PROBLEM. I WOULD APPRECIATE ANY HELP. I FEEL THAT THEY SHOULD HAVE TO RECALL THESE DEFECTIVE BOLTS AND REPLACE THEM WITH THE RIGHT ONES. I AM NOT OUT FOR ANY KIND OF SETTLEMENT OR SCAM ALL I WANT IS MY ENVOY FIXED. KRAL AUTO PARTS MAKES THE BRACKET. HTTPS://WWW.KRALAUTOPARTS.COM. *TR

NHTSA ODI #10633622

Mileage unknown · May 23, 2014

Engine And Engine Cooling

THE VEHICLE REAR AIR COMPRESSOR AIR DEFLATES OVER NIGHT OR AFTER SITTING FOR A WHILE. AIR COMPRESSOR. *TR

NHTSA ODI #10593798

47,000 miles · Feb 10, 2013

Engine And Engine CoolingPower Train

I STARTED MY VEHICLE ON MONDAY MORNING AND IT WAS UNUSUALLY LOUD. AFTER INSPECTION, I FOUND MY MANIFOLD WAS CRACKED. *TR

NHTSA ODI #10497620

51,000 miles · Sep 26, 2010

Engine And Engine Cooling

2008 GMC ENVOY 51,000 MILES EXHAUST MANIFOLD CRACKED I HAD IT REPLACED AND WAS TOLD BY DEALER A 3 DAY WAIT WOULD BE NECESSARY AS THEY HAD USED STOCK PARTS ON ANOTHER ENVOY WITH SAME PROBLEM . ADVISED ME NOT TO DRIVE BECAUSE IT MAY CATCH FIRE. *TR

NHTSA ODI #10357666

87,000 miles · Aug 16, 2010

Engine And Engine Cooling

BOUGHT THE VEHICLE LAST NOVEMBER FROM GEORGIAN PONTIAC BUICK GMC IN BARRIE ONTARIO CANADA LAST NOVEMBER 2009. LEARNED I HAD A CRACKED EXHAUST MANIFOLD ON MY 2008 ENVOY AT 87 000 KM. IT HAS NOT YET BEEN REPAIRED. RESEARCH IS ONGOING. *TR

NHTSA ODI #10349800

Mileage unknown · Dec 22, 2009

Electrical SystemElectronic Stability Control (esc)Engine And Engine Cooling

I HAVING PROBLEMS WITH MY STABILITRAK SYSTEM THE ENGINE LIGHTS COMES ON AND I JUST HAD THE THERMOSTAT SENSORS CHANGE WHICH TOOK THEM THREE TIME TO FIND THE PROBLEM AND MY DRIVERS WINDOW SENSORS WAS REPLACED AND THERE A SUDDEN THUMB WHEN YOU BRAKE AS THOUGHT YOU HAVE BEEN HIT FROM BEHIND. *TR

NHTSA ODI #10296735

Mileage unknown · Nov 2, 2009

Electrical SystemEngine And Engine CoolingPower Train

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I PURCHASED A 2008 ENVOY DENALI 7/08 DURING THE MIDDLE OF NOVEMBER WHILE DRIVE THE TEMP GAGE DROP TO THE LOWEST POINT AND STARTED CUTTING OFF HESITATING TO START. I THEN CONTACT ON-STAR THEY STATED IT WAS THE COOLING SYSTEM AND SHOULD BE TAKEN TO THE DEALER ON 10/19/09 I WENT AND WAS TOLD IT WAS THE TEMP SENOR WHICH WAS REPLACE THAT TUESDAY. THURSDAY THE SAME ISSUE ACCORD AGAIN I NOTIFIED ON-STAR THEY STATED THIS TIME IT WAS THE TRANSMISSION FRIDAY I WENT TO THE DEAL TO BE TOLD THEY COULD NOT WORK ON THE CAR UNTIL MONDAY. AS I WS SPEAKING TO A TECH THEY STATED IT SOUNDS LIKE THE TRANS AND THE MGR APPROACHED AND STATED I AM HANDLING THIS AND DIRECTED ME TOWARD THE DESK AND STATED HE HAD A RENTAL FOR ME AND ARRANGED A RIDE FOR ME. I TRULY BELIEVE THERE IS SOMETHING WRONG WITH THIS CAR AND TO MAKE THIS WORSE MY NAVIGATION SYSTEM HAS FAILED ME TWICE AS WELL. *TR

NHTSA ODI #10290620

Official recalls

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

RQ17002 · Loss Of Headlights

Opened Apr 24, 2017 · Closed Mar 29, 2021

Status: closed (inferred from source dates) · Exterior Lighting:headlights

The subject vehicles are model year (MY) 2002-2009 Chevrolet Trailblazer, GMC Envoy, 2004-2007 Buick Rainier, 2003-2008 Isuzu Ascender, 2005-2009 Saab 9-7X, 2002-2004 Oldsmobile Bravada, 2003-2006 Chevrolet SSR, 2005-2009 Buick Lacrosse, and 2006-2008 Pontiac Grand Prix. This scope includes the Trailblazer/Envoy variants: 2002-2006 Envoy XL/Trailblazer EXT and 2004-2005 Envoy XUV. The original scope of this investigation was expanded to include all vehicles equipped with the subject Headlight Driver Module (HDM). The focus of the investigation was to determine whether actions performed by General Motors adequately addressed any unreasonable risk to motor vehicle safety in the subject vehicles concerning the headlights and the HDM that controls them.Under normal electrical load and environmental conditions, the HDM can overheat inside the Underhood Electrical Center (UEC). This can cause the module to fail and result in a simultaneous loss of both low beam headlights and both daytime running lights (DRLs), often with no warning or prior detectability to the driver. This failure can be intermittent or permanent. No other exterior lights are affected. High beams, turn signals, brake lights, and reverse lights are still operational.General Motors addressed this issue with 2 recalls (14V755 & 15V519) and a special coverage program (N172091910). In view of the recalls and special coverage program implemented by GM and the vehicle high beams continuing to operate, ODI has tentatively concluded that the actions taken by GM mitigate any unreasonable risk to safety posed by HDM failure in the subject vehicles.Accordingly, the investigation is closed. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. The agency reserves the right to take additional action if warranted by new circumstances.The ODI reports cited above are available for review online at NHTSA.gov under the identification numbers in the attached document.