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

Service Brakes, Hydraulic complaints

3 reports

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31,300 miles · Jul 31, 2010

Service Brakes, Hydraulic

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WHILE ON OUR WAY BACK TO OUR MOTOR HOME THE BRAKE PEDAL ON MY 2008 GMC ENVOY WENT TO THE FLOOR WHEN I TRIED TO STOP IN HEAVY TRAFFIC ON HWY 503 IN THE STATE OF WASHINGTON. AFTER PUMPING THE BRAKE QUICKLY I WAS ABLE TO REGAIN SOME BRAKING POWER. WHEN I CALLED THE LOCAL GMC DEALER (CARR GMC) IN VANCOUVER THE SERVICE ADVISER CONFIRMED THAT IT WAS THE MASTER CYLINDER. NOW THIS HAPPENED ON TUESDAY JULY 20, 2010, THE SERVICE ADVISER GAVE ME AN APPOINTMENT FOR THURSDAY JULY 22 BETWEEN 9:00 TO 9:30 AM. I ARRIVED AT 9:10 AM AND WAS TOLD THAT IT WOULD TAKE 2-1/2 TO 3 HOURS TO DIAGNOSE THE PROBLEM. NOW THIS WAS THE SAME PERSON THAT TOLD ME ON THE PHONE TWO DAY PRIOR THAT I HAD A BAD MASTER CYLINDER. NOW I JUST DROVE THIS CAR 48 MILES WITH THE BRAKES NOT WORKING PROPERLY. THE DEALER DID NOT HAVE A MASTER CYLINDER IN STOCK AND WAS HAVING ONE OVERNIGHTED IN FROM LANCING, MI AND WOULD CALL ME WHEN IT WAS REPAIRED. NOW I DON'T KNOW OF HOW MANY OTHER VEHICLES THIS HAS HAPPENED TOO, BUT HAVING A MASTER CYLINDER FAIL ON A CAR THAT HAS ONLY 31,000 MILES ON IT IS NOT GOOD AND A REAL SAFETY ISSUE. *TR

NHTSA ODI #10346440

28,000 miles · Mar 2, 2010

Service Brakes, Hydraulic

THE BRAKES ON OUR GMC ENVOY "SKIP" WHEN THERE IS WET WEATHER, BUMPY ROADS AND ESPECIALLY SNOW. WHEN TRYING TO BRAKE, THE BRAKES DON'T SEEM TO GRAB AND IT TAKES EXTRA LONG TO STOP. WE HAVEN'T HAD ANY CRASHES, BUT SEVERAL CLOSE CALLS DUE TO THE BRAKES NOT ENGAGING. IN DRY AND NORMAL WEATHER, THEY WORK FINE. *TR

NHTSA ODI #10315612

12,000 miles · Mar 12, 2008

Service Brakes, HydraulicCrashInjury

ABS FAILURE. VEHICLE SKIDDED, LEAVING TIRE MARKS, ABOUT 2 VEHICLE LENGTHS. CLEAN DRY ASPHALT HIGHWAY. PASSENGER IN FRONT RIGHT SEAT BROKE LEFT FOOT. *TR

NHTSA ODI #10220854

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.