NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes, Hydraulic complaints
21 reportsClear category filter32,262 miles · Feb 26, 2007
Service Brakes, Hydraulic
WHEN CHECKING MY BRAKES I NOTICED THAT THE INSIDE OF THE FRONT BRAKE ROTORS WHERE CORRODED AND RUSTY. THE VEHICLE IS A 2004 CHEVROLET TRAILBLAZER WITH 32,262 HIGHWAY MILES. APPROXIMATELY 25-30% OF THE INSIDE OF THE ROTOR WERE RUSTED AND HAD WORN DOWN THE BRAKE PAD. SO ONLY 70% OF THE INSIDE BRAKE PAD WAS BEING USED FOR BRAKING.…
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WHEN CHECKING MY BRAKES I NOTICED THAT THE INSIDE OF THE FRONT BRAKE ROTORS WHERE CORRODED AND RUSTY. THE VEHICLE IS A 2004 CHEVROLET TRAILBLAZER WITH 32,262 HIGHWAY MILES. APPROXIMATELY 25-30% OF THE INSIDE OF THE ROTOR WERE RUSTED AND HAD WORN DOWN THE BRAKE PAD. SO ONLY 70% OF THE INSIDE BRAKE PAD WAS BEING USED FOR BRAKING. THIS CAUSES THE BRAKE PADS TO WEAR UNEVENLY. APPEARS THAT THIS COULD BE SERIOUS IN AN EMERGENCY SITUATION. I CHECKED THE REAR ROTORS AND THEY ARE STARTING TO DO THE SAME BUT ONLY 1/2" ON THE OUTER EDGE OF BRAKE ROTOR IS RUSTED. I CHECKED THE RECALLS AND THERE WERE NONE FOR BRAKES. I CHECKED WITH CHEVY AND THEY ARE NOT AWARE OF ANY PROBLEMS. IN CHECKING WEBSITES, TRAILBLAZERCLUB AND TRAILVOY, OTHER PEOPLE HAVE HAD THE SAME OR SIMILAR ISSUE. I WOULD ASSUME THAT THERE IS A PROBLEM WITH THE METAL. *NM
NHTSA ODI #10183504
Mileage unknown · Jan 17, 2007
Service Brakes, Hydraulic
OCTOBER 5, 2005 I BOUGHT A 2004 CHEVY TRAILBLAZER. AT TIME OF PURCHASE, I WAS OFFERED A TIRES FOR LIFE DEAL. ALL THAT WAS REQUIRED OF ME WAS TO HAVE THE MAINTENANCE DONE AT CHEVY AND TO HAVE TIRE ROTATIONS AND OIL CHANGES EVERY 3000 MILES. I HAVE BEEN DOING THIS. LAST OIL CHANGE AND ROTATION ON JAN 8, THEY TOLD ME I NEEDED FR…
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OCTOBER 5, 2005 I BOUGHT A 2004 CHEVY TRAILBLAZER. AT TIME OF PURCHASE, I WAS OFFERED A TIRES FOR LIFE DEAL. ALL THAT WAS REQUIRED OF ME WAS TO HAVE THE MAINTENANCE DONE AT CHEVY AND TO HAVE TIRE ROTATIONS AND OIL CHANGES EVERY 3000 MILES. I HAVE BEEN DOING THIS. LAST OIL CHANGE AND ROTATION ON JAN 8, THEY TOLD ME I NEEDED FRONT BRAKES. 57,500 MILES ON VEHICLE. I SAID OKAY AND SET UP AN APPOINTMENT FOR JAN.15. AT THAT TIME, THEY TOLD ME I WOULD NEED NEW ROTORS ALSO. AT THIS POINT I WAS STARTING TO MISTRUST THE SERVICE DEPARTMENT. THEY PUT MY VEHICLE BACK TOGETHER AND I WENT TO BIG O TIRES FOR A SECOND OPINION. UPON THEIR CHECKING MY VEHICLE, THEY FOUND ALL FOUR ROTORS TO BE BAD! IT APPEARS TO BE A MANUFACTURERS DEFECT. THE MANUFACTURER IS USING A DEFECTIVE METAL TO MAKE THE ROTORS. BIG O CLAIMS THAT IT IS A POTENTIAL LAW SUIT AND THEY SHOULD DO A RECALL. THEY HAVE HAD NUMEROUS CASES COME IN LIKE MINE NOT ONLY ON THE TRAILBLAZER BUT OTHER CHEVY TRUCKS AND SUV'S. THE BRAKES WEREN'T ACTUALLY WORE THAT BAD BUT ALL FOUR ROTORS WERE RUSTED AND PITTED. THESE ROTORS HAD NEVER BEEN TURNED THEY STILL HAD MANUFACTURER CLIPS ON THEM. IT WAS DEFINITELY A SIGN OF POOR QUALITY PARTS NOT REGULAR WEAR AND TEAR. ALSO, CHEVY MAKES ME WONDER WHY THEY DID NOT NOTICE THIS EARLIER? I HAVE BEEN IN THEIR SHOP EVERY 3000 MILES FOR ROTATION, THEY SHOULD HAVE NOTICED THIS RIGHT AWAY. IT IS AS IF THEY WERE TRYING TO HIDE SOMETHING. HERE IN 2 WEEKS I WILL BE GETTING NEW FRONT ROTORS AND BRAKES. THEN AS SOON AS I CAN AFFORD IT I AM GOING TO GET THE BACK ROTORS REPLACED. BUT THIS COULD PROVE TO BE DANGEROUS TO MANY PEOPLE AND SHOULD BE LOOKED INTO. THANK YOU FOR YOUR TIME AND CONSIDERATION. *NM
NHTSA ODI #10178893
21,800 miles · Jan 8, 2007
Service Brakes, Hydraulic
TL*- THE CONTACT STATED THAT HE TOOK THE VEHICLE TO A DEALERSHIP FOR AN INSPECTION ON 1/9/07. HE WAS INFORMED BY THE MECHANIC THAT THE VEHICLE WILL NOT PASS INSPECTION NEXT YEAR BECAUSE OF THE BRAKE ROTORS. THE SERVICE DEPARTMENT INDICATED THAT ALL 4 ROTORS WERE WARPED. THE CONTACT BELIEVED THAT THE ROTORS SHOULD NOT B…
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TL*- THE CONTACT STATED THAT HE TOOK THE VEHICLE TO A DEALERSHIP FOR AN INSPECTION ON 1/9/07. HE WAS INFORMED BY THE MECHANIC THAT THE VEHICLE WILL NOT PASS INSPECTION NEXT YEAR BECAUSE OF THE BRAKE ROTORS. THE SERVICE DEPARTMENT INDICATED THAT ALL 4 ROTORS WERE WARPED. THE CONTACT BELIEVED THAT THE ROTORS SHOULD NOT BE IN NEED OF REPLACEMENT AT 21800 MILES. *AK UPDATED 01/31/07. *JB
NHTSA ODI #10178060
36,000 miles · Sep 6, 2006
Engine And Engine CoolingEquipmentPower Train
I HAVE HAD MY TRAIL BLAZER FOR 1 YR AND 1 MONTH. IN THAT TIME I HAVE HAD TO REPLACE FRONT AND BACK PADS AND ROTORS, BALL JOINTS, CATALYTIC (SP) CONVERTER, AND NOW THEY JUST TOLD ME I HAVE TO REPLACE THE HEAD GASKET ON THE MANIFOLD. WHAT THE HELL IS GOING ON WITH THIS VEHICLE. I NO LONGER FEEL SAFE DRIVING IT. THE OTHER DAY THE…
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I HAVE HAD MY TRAIL BLAZER FOR 1 YR AND 1 MONTH. IN THAT TIME I HAVE HAD TO REPLACE FRONT AND BACK PADS AND ROTORS, BALL JOINTS, CATALYTIC (SP) CONVERTER, AND NOW THEY JUST TOLD ME I HAVE TO REPLACE THE HEAD GASKET ON THE MANIFOLD. WHAT THE HELL IS GOING ON WITH THIS VEHICLE. I NO LONGER FEEL SAFE DRIVING IT. THE OTHER DAY THE RADIO JUST STOPPED PLAYING AND THEN THE SERVICE 4 WHEEL DRIVE LIGHT CAME ON. *NM
NHTSA ODI #10167431
25,800 miles · Aug 29, 2006
Service Brakes, Hydraulic
TRAILBLAZER WAS TAKEN TO PLACE OF PURCHASE TO REPAIR PULSATING BRAKES. VEHICLE IS UNDER WARRANTY WITH UNDER 26,000 MILES. DEALER REFUSED TO REPAIR. SAID GM WOULD NOT PAY FOR REPAIRS. RUSTY ROTORS WAS THE DIAGNOSIS. CONTACTED GM REP (LISA) AND SHE TOLD ME I LIVED IN THE RUST-BELT AND THAT WAS THE REASON FOR THE RUSTY ROTOR COND…
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TRAILBLAZER WAS TAKEN TO PLACE OF PURCHASE TO REPAIR PULSATING BRAKES. VEHICLE IS UNDER WARRANTY WITH UNDER 26,000 MILES. DEALER REFUSED TO REPAIR. SAID GM WOULD NOT PAY FOR REPAIRS. RUSTY ROTORS WAS THE DIAGNOSIS. CONTACTED GM REP (LISA) AND SHE TOLD ME I LIVED IN THE RUST-BELT AND THAT WAS THE REASON FOR THE RUSTY ROTOR CONDITION, NOT DEFECTIVE PARTS. SHE REFUSED TO AUTHORIZE REPAIR. SUGGESTED I RETURN THE VEHICLE TO THE DEALER, HAVE THEM CUT THE ROTORS (AT A RATE OF $150 PER AXLE). SUBMIT THE BILL TO GM AND THEY WOULD DECIDE WHETHER TO REIMBURSE ME. *NM
NHTSA ODI #10166839
34,000 miles · Dec 8, 2005
Service Brakes, HydraulicCrash
LAST WEEK IT WAS COLD & SNOWING. I WAS COMING TO A STOP SIGN AT A VERY LOW SPEED. I ATTEMPTED TO BRAKE, THE VEHICLE DID NOT. I PROCEEDED THROUGH THE STOP SIGN AND STRUCK ANOTHER VEHICLE. AGAIN TODAY I WAS APPROACHING A STOP SIGN WHEN I ATTEMPTED TO BRAKE, THE VEHICLE DID NOT STOP. TODAY THERE WAS LUCKILY NO ON COMING TRAFFI…
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LAST WEEK IT WAS COLD & SNOWING. I WAS COMING TO A STOP SIGN AT A VERY LOW SPEED. I ATTEMPTED TO BRAKE, THE VEHICLE DID NOT. I PROCEEDED THROUGH THE STOP SIGN AND STRUCK ANOTHER VEHICLE. AGAIN TODAY I WAS APPROACHING A STOP SIGN WHEN I ATTEMPTED TO BRAKE, THE VEHICLE DID NOT STOP. TODAY THERE WAS LUCKILY NO ON COMING TRAFFIC. I WILL BE TAKING MY VEHICLE IN FOR INSPECTION. *NM
NHTSA ODI #10144809
22,000 miles · Oct 19, 2005
Service Brakes, Hydraulic
DT: THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE VEHICLE HAS BEEN TO THE DEALERSHIP ABOUT 4 OR 5 TIMES FOR THE BRAKE SYSTEM. WHEN A DIAGNOSTIC TEST WAS PERFORMED ON THE VEHICLE IT DID NOT INDICATE THAT THERE WAS A BRAKE PROBLEM. . WHEN THE BRAKES WERE APPLIED THE PEDAL WENT TO THE FLOOR, THE VEHICLE WOULD SLOW DO…
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DT: THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE VEHICLE HAS BEEN TO THE DEALERSHIP ABOUT 4 OR 5 TIMES FOR THE BRAKE SYSTEM. WHEN A DIAGNOSTIC TEST WAS PERFORMED ON THE VEHICLE IT DID NOT INDICATE THAT THERE WAS A BRAKE PROBLEM. . WHEN THE BRAKES WERE APPLIED THE PEDAL WENT TO THE FLOOR, THE VEHICLE WOULD SLOW DOWN, BUT WILL NOT STOP. NO WARNING LIGHTS ILLUMINATED ,INDICATING THAT THERE WAS A PROBLEM WITH THE BRAKES. THIS DID NOT HAPPEN EVERY TIME THAT THE BRAKES WERE APPLIED. THE WEATHER CONDITION HAS NO IMPACT ON THE BRAKING CAPABILITY. THE MANUFACTURER STATED THAT IF THE DIAGNOSTIC TEST SHOWED THERE WAS NOTHING WRONG THEN THERE WAS NOTHING THAT THEY COULD DO ABOUT THE PROBLEM. *AK
NHTSA ODI #10140227
Mileage unknown · Sep 2, 2005
Service Brakes, HydraulicCrash
MY DAUGHTER WAS DRIVING MY 2004 TRAILBLAZER ON AN ICY, SLIPPERY ROAD AT 25 -30 MILES PER HOUR, (THE SPEED LIMIT IS 30, IT WAS THE STREET WE LIVE ON) WHEN SHE LOST CONTROL, HIT A TREE AND TOTALED ($22,000.00) THE VEHICLE. THE OFFICER AND I WALKED THE PATH IN THE STREET AND COULD NOT FIND ANY SIGNS OF SKIDDING OR BRAKING, THERE …
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MY DAUGHTER WAS DRIVING MY 2004 TRAILBLAZER ON AN ICY, SLIPPERY ROAD AT 25 -30 MILES PER HOUR, (THE SPEED LIMIT IS 30, IT WAS THE STREET WE LIVE ON) WHEN SHE LOST CONTROL, HIT A TREE AND TOTALED ($22,000.00) THE VEHICLE. THE OFFICER AND I WALKED THE PATH IN THE STREET AND COULD NOT FIND ANY SIGNS OF SKIDDING OR BRAKING, THERE FORE LEADING ME TO BELIEVE NOW THAT THERE WAS A BRAKING FAILURE. UP UNTIL NOW, WHEN I HEARD ABOUT THE BRAKES FAILING DO TO CORROSION FROM ROAD SALT, I ALWAYS THOUGHT IT WAS JUST AN ACCIDENT IN POOR ROAD CONDITIONS. WHEN I FIRST READ THE REPORT OF THE INVESTIGATION I COULDN'T BELIVE IT WAS THE SAME SCENARIO AS HER ACCIDENT. POOR ROAD CONDITIONS, THEREFORE POSSIBLE SALT BUILDUP, A SLOW SPEED AND INABILITY TO STOP. I AM SO GRATEFULL THAT SHE WALKED AWAY WITHOUT A SCRATCH, ALSO CONSIDERING THE AIR BAGS DID NOT DEPLOY, EVEN THOUGH THE FRONT END WAS TOTALED. I AM SURE THIS IS A PROBLEM THAT MUST BE IDENTIFIED FOR THOSE LIVING IN COLDER, NORTHERN STATES.
NHTSA ODI #10135169
18,000 miles · May 6, 2005
Service Brakes, HydraulicCrash
CONSUMER STATES: ABS SYSTEM: HIT BRAKES COMING OFF THE OFF RAMP, PUSHED THE BRAKES TO THE FLOOR, HIT THE BRAKES AGAIN AND JUST DIDN'T STOP, HAD AN ACCIDENT. THE ROAD WAS DRY . *AK
NHTSA ODI #10120095
17,000 miles · Mar 15, 2005
Service Brakes, Hydraulic
THE BRAKES WERE MAKING A LOUD SCREECHING NOISE. I TOOK THE TRUCK TO THE NEAREST CHEVY DEALERSHIP. THE TRUCK ONLY HAD ABOUT 15,000 MILES ON IT. UPON INSPECTION, THE SERVICE DEPARTMENT FOUND THAT ALL FOUR BRAKE ROTORS WERE COMPLETELY RUSTED AND PITTED. THIS VEHICLE IS HOUSED IN A GARAGE WHEN NOT IN USE, SO RUSTING SHOULD NOT O…
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THE BRAKES WERE MAKING A LOUD SCREECHING NOISE. I TOOK THE TRUCK TO THE NEAREST CHEVY DEALERSHIP. THE TRUCK ONLY HAD ABOUT 15,000 MILES ON IT. UPON INSPECTION, THE SERVICE DEPARTMENT FOUND THAT ALL FOUR BRAKE ROTORS WERE COMPLETELY RUSTED AND PITTED. THIS VEHICLE IS HOUSED IN A GARAGE WHEN NOT IN USE, SO RUSTING SHOULD NOT OCCUR EASILY. ALL FOUR ROTORS AND BRAKE PADS WERE REPLACED. THIS IS JUST ONE OF 21 PROBLEMS I HAVE HAD WITH THIS VEHICLE- NOT TO MENTION THE SEVERE BACK PAIN THE DRIVER'S SEAT IS CAUSING ME.*AK
NHTSA ODI #10114111
NHTSA investigations
4RQ17002 · 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.
EA07009 · Fuel Pump Module Leaks Gasoline
Opened Jul 10, 2007 · Closed Aug 28, 2008
Status: closed (inferred from source dates) · Fuel System, Gasoline:delivery:fuel Pump
DURING THE COURSE OF THIS EA INVESTIGATION, ODI OBSERVED THAT THE MAJORITY OF THE COMPLAINTS (88%) AND WARRANTY CLAIMS (94%) WERE REPORTED FOR VEHICLES THAT ARE REGISTERED FOR USE IN THE SALT BELT REGION OF THE US.THIS AREA INCLUDES 20 STATES IN THE NORTHEAST, MID ATLANTIC AND THE MIDWEST REGIONS AND THE DISTRICT OF COLUMBIA.CONSUMERS IN THE SALT BELT REGION REPORTED TO ODI THAT THEY COULD SMELL FUEL VAPORS IN THEIR VEHICLES WHILE DRIVING.UPON FURTHER EXAMINATION OF THEIR VEHICLES, THEY DISCOVERED THAT FUEL VAPORS WERE COMING OUT OF THE TOP OF THE FUEL TANK. THIS CONDITION IS CAUSED BY CORROSION OF THE RETURN AND SENDER LINES OF THE FUEL PUMP MODULE.WATER AND ROAD SALT COLLECT ON TOP OF THE FUEL PUMP LEADING TO SMALL PINHOLES APPEARING ON THE FUEL LINES.FUEL MAY LEAK AND COLLECT ON TOP OF THE MODULE AND/OR SPILL ONTO THE GROUND.THE DATA EVALUATED UNDER THIS INVESTIGATION REFLECT A RELATIVELY LOW FREQUENCY OF OCCURRENCE THAT LARGELY ARISES IN SALT BELT STATES.GM HAS EXTENDED THE WARRANTY ON THE SUBJECT COMPONENT TO TEN YEARS OR 120,000 MILES.FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED AT THIS TIME; ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.FOR ADDITIONAL INFORMATION SELECT DOCUMENT SEARCH.
EA04021 · Brake Lamp Failure
Opened Aug 3, 2004 · Closed Nov 4, 2004
Status: closed (inferred from source dates) · Exterior Lighting:brake Lights
GM STATES THAT SOME BRAKE/TAIL LAMP BULBS CAN PREMATURELY BECOME INOPERATIVE DUE TO MALFUNCTIONING BRAKE/TAIL LAMP SOCKETS.ON MARCH 2, 2004, GM INITIATED A 6-YEAR/72,000 MILE SPECIAL POLICY FOR 989,487 SUBJECT VEHICLES TO INSPECT AND REPLACE THE REAR BRAKE/TAIL LAMP BULB SOCKET ASSEMBLIES.ON APRIL 4, 2004, THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED A PRELIMINARY EVALUATION (PE04-032) BASED ON CONSUMER COMPLAINTS ALLEGING BRAKE LIGHTS NOT OPERATING WHEN THE BRAKE PEDAL IS DEPRESSED.ON AUGUST 3, 2004 ODI UPGRADED PE04-032 TO AN ENGINEERING ANALYSIS (EA04-021).BY LETTER DATED OCTOBER 27, 2004 GM NOTIFIED NHTSA THAT IT WILL CONDUCT A SAFETY RECALL (NHTSA # 04V527) COVERING SUBJECT VEHICLES THAT WERE NOT ALREADY REPAIRED UNDER GM'S SPECIAL POLICY.MY 2004 SUBJECT VEHICLES BUILT AFTER AUGUST 8, 2003 CONTAIN IMPROVED BRAKE LAMP ASSEMBLIES AND ARE NOT INCLUDED IN THE RECALL.GM DEALERS WILL INSTALL THE IMPROVED BRAKE LAMP ASSEMBLY ON SUBJECT VEHICLES BUILT ON AUGUST 8, 2003 AND EARLIER.THE ACTION TAKEN BY GM IS SUFFICIENT TO RESOLVE THE ISSUES RAISED BY THIS INVESTIGATION.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.
PE04032 · Brake Lamp Failure
Opened Apr 6, 2004 · Closed Aug 3, 2004
Status: closed (inferred from source dates) · Exterior Lighting:brake Lights
THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED THIS INVESTIGATION ON MODEL YEAR (MY) 2002-04 CHEVROLET TRAILBLAZER VEHICLES.GM REPORTS THAT OTHER VEHICLES SHARING THIS PLATFORM AND BRAKE LAMP DESIGN ARE THE MY 2002-2004 CHEVROLET TRAILBLAZER EXT; GMC ENVOY, XL, XUV; OLDSMOBILE BRAVADA AND 2004 BUICK RAINIER.COMPLAINTS ALLEGE THAT THE REAR BRAKE LAMP DOES NOT OPERATE WHEN THE BRAKE PEDAL IS DEPRESSED.THERE IS NO INDICATION TO THE DRIVER FROM INSIDE THE VEHICLE THAT ONE OR MORE BRAKE LAMPS BULBS ARE NOT FUNCTIONING.GM FOUND THAT HEAT FROM THE BULB COULD DEFORM THE LAMP SOCKET, PRODUCE ELECTRICAL ARCING AND AN INOPERATIVE BULB.TO CORRECT THE CONDITION, GM CHANGED THE BULB TO A BULB THAT TRANSMITS LESS HEAT TO THE SOCKET AND CHANGED THE SOCKET TO A THERMOPLASTIC POLYMER TO IMPROVE THERMAL STABILITY.THESE CHANGES WERE IMPLEMENTED INTO PRODUCTION VEHICLES ON OCTOBER 1, 2003.GM IMPLEMENTED A SPECIAL POLICY BY NOTIFYING CONSUMERS THAT IF THEY SHOULD EXPERIENCE A BRAKE LAMP FAILURE TO GO TO THEIR GM DEALERSHIP TO HAVE THE CIRCUIT BOARD CONTAINING THE BRAKE LAMP REPLACED ALONG WITH NEW BULBS.THIS POLICY IS GOOD FOR THE FIRST 6 YEARS OR 72,000 MILES OF THE LIFE OF THE VEHICLE.ODI WILL UPGRADE THIS INVESTIGATION TO EA 04-021 AND INCLUDE THE ABOVE MENTIONED VEHICLES.
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