NHTSA owner reports · September 18, 2026 snapshot.
Engine And Engine Cooling complaints
27 reportsClear category filter87,000 miles · May 5, 2015
Engine And Engine CoolingUnknown Or OtherCrashInjury
WHEN BACKING THE VEHICLE TO LEAVE A LOCAL RESTAURANT, DRIVER STRUCK VEHICLE BEHIND HER. THIS HAPPENED SO QUICKLY THAT IT WAS UNKNOWN TO THE DRIVER HOW THE VEHICLE TRAVELED SO QUICKLY THAT DRIVER HAD NOT EVEN HAD A CHANCE TO TURN THE STEERING WHEEL TO AVOID STRIKING THE OTHER VEHICLE. DRIVER PLACED VEHICLE IN DRIVE TO PULL OVER …
Read full complaint
WHEN BACKING THE VEHICLE TO LEAVE A LOCAL RESTAURANT, DRIVER STRUCK VEHICLE BEHIND HER. THIS HAPPENED SO QUICKLY THAT IT WAS UNKNOWN TO THE DRIVER HOW THE VEHICLE TRAVELED SO QUICKLY THAT DRIVER HAD NOT EVEN HAD A CHANCE TO TURN THE STEERING WHEEL TO AVOID STRIKING THE OTHER VEHICLE. DRIVER PLACED VEHICLE IN DRIVE TO PULL OVER TO ASSESS THE DAMAGE. WHEN PLACED INTO DRIVE, THE VEHICLE LURCHED FORWARD AND CONTINUED TO ACCELERATE DESPITE THE BRAKES BEING APPLIED. THE VEHICLE STRUCK A BRICK RESTAURANT. DAMAGE WAS ALSO DONE TO THE INTERIOR BATHROOM OF THE FACILITY AND THE BUSINESS HAD TO CLOSE TO ASSURE SAFETY OF IT'S STAFF/CUSTOMERS. WITNESS STATES THE VEHICLE WAS OBVIOUSLY LURCHING AND APPEARED TO HAVE A MECHANICAL PROBLEM. THE DRIVER'S FOOT BOUNCED OFF OF THE BRAKE PEDAL ON IMPACT LODGING IT UNDERNEATH THE BRAKE PEDAL. IT WAS ALSO NOTED THAT NEITHER FRONT AIRBAGS DID DEPLOY. DRIVER DID NOT SEEK MEDICAL ATTENTION HOWEVER DRIVER'S FOOT WAS BADLY BRUISED.
NHTSA ODI #10714852
65,222 miles · Jul 30, 2014
Engine And Engine CoolingSteering
ON JULY 28, 2014 I WAS GOING DOWN A HILL AND THE ENGINE SHUT OFF COMPLETELY. FORTUNATELY I WAS ONLY GOING APPROXIMATELY 5 MPH AND WAS ABLE TO COAST ACROSS THE MAIN STREET AND WAS ABLE TO COAST INTO A PARKING SPOT. I TRIED RESTARTING MY ENVOY WITH NO LUCK SO I HAD THE TRUCK TOWED TO THE LOCAL GMC DEALERSHIP AND WAS TOLD THAT TH…
Read full complaint
ON JULY 28, 2014 I WAS GOING DOWN A HILL AND THE ENGINE SHUT OFF COMPLETELY. FORTUNATELY I WAS ONLY GOING APPROXIMATELY 5 MPH AND WAS ABLE TO COAST ACROSS THE MAIN STREET AND WAS ABLE TO COAST INTO A PARKING SPOT. I TRIED RESTARTING MY ENVOY WITH NO LUCK SO I HAD THE TRUCK TOWED TO THE LOCAL GMC DEALERSHIP AND WAS TOLD THAT THE IGNITION SWITCH HAD GONE BAD. I HATE TO THINK WHAT WOULD HAVE HAPPENED IF I WAS GOING FASTER OR GOING DOWN A STEEP MOUNTAIN BECAUSE WHERE I LIVE I AM SURROUNDED BY MOUNTAINS. I AM NOT SURE IF ANYONE ELSE EXPERIENCED THIS PROBLEM WITH A SIMILAR VEHICLE. I DO KNOW THAT OTHER GM CARS AND VEHICLES ARE BEING RECALLED FOR THIS SAME SITUATION BUT WAS TOLD THAT MINE IS NOT UNDER A RECALL AT THIS TIME. *TR
NHTSA ODI #10617539
96,000 miles · Nov 26, 2013
Engine And Engine Cooling
MY 2005 GMC ENVOY HAS STARTED EXPERIENCING A KNOCKING SOUND IN THE RIGHT REAR PASSENGER SIDE. IT STARTS APPROXIMATELY A MINUTE AFTER THE VEHICLE STARTS AND STOPS WITHIN A MINUTE OR SO. IT HAPPENS WHEN THE CAR IS MOVING OR IDLE. THIS STARTED YESTERDAY EVENING. NOT SURE WHAT IS CAUSING IT. EVERYTHING IS RUNNING FINE IN THE VE…
Read full complaint
MY 2005 GMC ENVOY HAS STARTED EXPERIENCING A KNOCKING SOUND IN THE RIGHT REAR PASSENGER SIDE. IT STARTS APPROXIMATELY A MINUTE AFTER THE VEHICLE STARTS AND STOPS WITHIN A MINUTE OR SO. IT HAPPENS WHEN THE CAR IS MOVING OR IDLE. THIS STARTED YESTERDAY EVENING. NOT SURE WHAT IS CAUSING IT. EVERYTHING IS RUNNING FINE IN THE VEHICLE. THERE MUST BE OTHER SIMILAR COMPLAINTS AND RESOLUTIONS. *TR
NHTSA ODI #10553895
79,856 miles · Dec 28, 2011
Electrical SystemEngine And Engine CoolingFuel System, Gasoline
I HAVE HAD A PROBLEM IN THE PAST WITH THE FUEL GAUGE READING EMPTY CONTINUOUSLY AS I HAVE READ FROM MANY OTHER COMPLAINTS. RECENTLY I EXPERIENCED A PROBLEM WITH THE OIL PRESSURE GAUGE. AT FIRST THE CHECK ENGINE LIGHT APPEARED INTERMITTENTLY AND THEN THE OIL PRESSURE GAUGE DROPPED TO ZERO, AT WHICH TIME THE MESSAGE IN ON THE LC…
Read full complaint
I HAVE HAD A PROBLEM IN THE PAST WITH THE FUEL GAUGE READING EMPTY CONTINUOUSLY AS I HAVE READ FROM MANY OTHER COMPLAINTS. RECENTLY I EXPERIENCED A PROBLEM WITH THE OIL PRESSURE GAUGE. AT FIRST THE CHECK ENGINE LIGHT APPEARED INTERMITTENTLY AND THEN THE OIL PRESSURE GAUGE DROPPED TO ZERO, AT WHICH TIME THE MESSAGE IN ON THE LCD READING SAID "STOP ENGINE" AND "OIL PRESSURE LOW". I IMMEDIATELY WENT TO MY GAS STATION AND CHECKED THE OIL, WHICH WAS ONLY DOWN A 1/4 TANK. MY MECHANIC STOPPED THE CAR AND STARTED IT AGAIN AND THE OIL PRESSURE GAUGE RESET ITSELF BUT ONCE I STARTED TO DRIVE THE CAR AGAIN, THE OIL PRESSURE DROPPED. MY MECHANIC BELIEVES IT IS ANOTHER SENSOR PROBLEM LIKE THE FUEL SENSOR BUT IS NOT COMPLETELY SURE. I ONLY STARTED WITH THIS ISSUE TODAY BUT IT IS MORE WORRISOME TO ME THAN KEEPING TRACK OF HOW MUCH GAS SHOULD BE IN MY TANK. I AM CURIOUS TO KNOW IF OTHERS HAVE STARTED TO EXPERIENCE THIS PROBLEM. I HAVE HAD THE CAR SINCE IT WAS BRAND NEW AND HAVE DRIVE 79000 MILES. I ALSO HAD A MAJOR ISSUE WITH THE SUSPENSION SYSTEM WITH I BELIEVE IS COMMON IN THIS VEHICLE. *TR
NHTSA ODI #10441550
78,300 miles · Nov 13, 2011
Engine And Engine Cooling
EXHAUST MANIFOLD IS CRACKED. HAD EXHAUST MANIFOLD AND GASKETS REPLACED. TOOK 5 WORKING DAYS TO FIX. CHECKED ON LINE AND FOUND MANY COMPLAINTS ON THE ENVOY AND TRAILER BLAZER 'S MANIFOLD. *TR
NHTSA ODI #10435375
63,500 miles · Oct 16, 2011
Electrical SystemEngine And Engine CoolingFuel System, Gasoline
2005 GMC ENVOY XL HAS SEVERAL ISSUES WITH THE INSTRUMENT CLUSTER. THE BATTERY AND TEMPERATURE GAUGES ARE READING OFF THE SCALE PAST THEIR MAXIMUM READINGS. IT SHOULD ALSO BE NOTED THAT THIS VEHICLE ALSO HAD ISSUES WITH THE FUEL GAUGE SENDING UNIT AND THE ENGINE THERMOSTAT. *TR
NHTSA ODI #10430426
91,000 miles · Aug 31, 2011
Engine And Engine Cooling
EXHAUST MANIFOLD FAILURE. MECHANIC SAYS IN 25 YEARS HE HAS NEVER SEEN AS MANY FAILURES AS IN THESE MODELS,AS IT IS USUALLY VERY RARE FOR THEM TO FAIL. IN RESEARCHING ON LINE I HAVE FOUND IT IS A COMMON PROBLEM IN '03 THROUGH '08 MODEL GMC ENVOYS AND CHEVY TRAILBLAZERS. *TR
NHTSA ODI #10422813
Mileage unknown · Aug 3, 2011
Engine And Engine CoolingFuel System, Gasoline
I BOUGHT MY VEHICLE USED IN 2006 AND HAVE HAD PROBLEMS WITH IT STALLING SEVERAL DAYS A YEAR. NOW MY GAS GAUGE IS NOT WORKING. I FILL IT UP AND IT STARTS BLINKING WITH THE RED LIGHT THAT ITS EMPTY.
NHTSA ODI #10417448
124,500 miles · Jul 26, 2011
Engine And Engine Cooling
I HAVE A 2005 ENVOY, TODAY I WAS DRIVING GOING THE NORMAL SPEED AND GOT TO A STOP SIGN ALL A SUDDEN THE TRUCK STARTED REVVING UP ON ITS ON AND THEN WOULD STOP. THEN I BEGAN TO GIVE IT GAS AND TO MY SURPRISE IT DID NOT HAVE ENOUGH POWER TO GET UP A HILL.MINUTES LATER THE TRUCK BEGAN TO MOVE AS IF NOTHING WAS WRONG.I HAVE ONSTAR S…
Read full complaint
I HAVE A 2005 ENVOY, TODAY I WAS DRIVING GOING THE NORMAL SPEED AND GOT TO A STOP SIGN ALL A SUDDEN THE TRUCK STARTED REVVING UP ON ITS ON AND THEN WOULD STOP. THEN I BEGAN TO GIVE IT GAS AND TO MY SURPRISE IT DID NOT HAVE ENOUGH POWER TO GET UP A HILL.MINUTES LATER THE TRUCK BEGAN TO MOVE AS IF NOTHING WAS WRONG.I HAVE ONSTAR SO I CALLED FOR A DIAGNOSTIC CHECK, THEY STATED THAT THE COOLING SYSTEM NEEDED TO BE CHECKED , THE ANTIFREEZE MAY BE LOW AND CAN EFFECT THE WAY THE TRUCK IS PERFORMING.WELL AFTER GOING TO THE GAS STATION TO PURCHASE THE ANTIFREEZE THEN I START THE TRUCK AND IT BEGINS TO REV AGAIN ON ITS OWN AND SUDDENLY I CAN NOT MOVE...I HAD TO HAVE IT TOWED TO THE DEALER....IS THERE A RECALL ON THIS ..IM AFRAID TO DRIVE THIS IS DANGEROUS....I HAVE YOUNG CHILDREN......SOMEONE PLEASE ADVISE......I HAVE NEVER EXPERIENCED THIS BEFORE.... *TR
NHTSA ODI #10415276
89,980 miles · Jun 27, 2011
Engine And Engine CoolingFuel System, GasolineFire
TL* THE CONTACT OWNS A 2005 GMC ENVOY. THE CONTACT STATED THAT THE FUEL GAUGE DISPLAYED AN EMPTY READING AFTER REFUELING. THE FUEL GAUGE BEGAN TO DISPLAY A NORMAL READING THE FOLLOWING DAY. THE FAILURE RECURRED INTERMITTENTLY. THE VEHICLE WAS NOT TAKEN TO HAVE THE FAILURE DIAGNOSED OR REPAIRED. THERE WAS AN INVESTIGATION UNDER N…
Read full complaint
TL* THE CONTACT OWNS A 2005 GMC ENVOY. THE CONTACT STATED THAT THE FUEL GAUGE DISPLAYED AN EMPTY READING AFTER REFUELING. THE FUEL GAUGE BEGAN TO DISPLAY A NORMAL READING THE FOLLOWING DAY. THE FAILURE RECURRED INTERMITTENTLY. THE VEHICLE WAS NOT TAKEN TO HAVE THE FAILURE DIAGNOSED OR REPAIRED. THERE WAS AN INVESTIGATION UNDER NHTSA ACTION NUMBER: DP10001 (FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM) THAT MAY BE RELATED TO THE FAILURE. THE CONTACT ALSO STATED THAT ONE OF THE SETTINGS FOR THE FAN STOPPED FUNCTIONING. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THE CONTACT WAS INFORMED THAT THE WIRING HARNESS FOR THE BLOWER MOTOR WAS MELTED. THE VEHICLE WAS REPAIRED. THE FAILURE MILEAGE WAS 89,980.
NHTSA ODI #10409086
NHTSA investigations
2RQ17002 · 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.
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.