Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
1570–25K
12025–50K
8450–75K
7275–100K
59100–150K
27150K+
519 reports with mileage · 103 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.
Electrical System. Review the 159 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Service Brakes. Review the 122 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Service Brakes, Hydraulic. Review the 84 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
56 crash reports10 fire reports30 injury reports
What owners actually said
622 reports
171,000 miles · Jan 10, 2015
Service Brakes
DRIVING A WELL MAINTAINED TWO WHEEL DRIVE 2004 CHEVROLET SILVERADO 2500 CREW CAB PICKUP AT 30 MPH ON A SUBURBAN ROADWAY. I APPLIED HARD BRAKING AND PEDAL WENT TO FLOOR. I WAS ABLE TO SHIFT AUTOMATIC TRANSMISSION TO LOW 1 AND APPLY E-BRAKE TO STOP BEFORE CRASH. EXAMINATION OF STEEL BRAKE LINES FROM MASTER CYLINDER TO THE ABS MOD…
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DRIVING A WELL MAINTAINED TWO WHEEL DRIVE 2004 CHEVROLET SILVERADO 2500 CREW CAB PICKUP AT 30 MPH ON A SUBURBAN ROADWAY. I APPLIED HARD BRAKING AND PEDAL WENT TO FLOOR. I WAS ABLE TO SHIFT AUTOMATIC TRANSMISSION TO LOW 1 AND APPLY E-BRAKE TO STOP BEFORE CRASH. EXAMINATION OF STEEL BRAKE LINES FROM MASTER CYLINDER TO THE ABS MODULE UNDER THE DRIVERS FLOOR SHOWED EXCESSIVE CORROSION AS REASON FOR FAILURE. THE LINES THAT WERE SPECIFICALLY AFFECTED TRAVEL OVER DRIVER SIDE FRAME RAIL AND ARE OUT OF SIGHT FOR ROUTINE VISUAL INSPECTION. THIS VEHICLE OPERATED IN THE "SALT BELT" (NEW ENGLAND) AND ROAD SPRAY FROM THE LEFT FRONT TIRE DIRECTLY IMPACTS THIS AREA. AFTER REPLACING ALL STEEL LINES WITH STAINLESS LINES (OVER $500.00 IN PARTS & LABOR) THE BRAKE SYSTEM WORKED AS DESIGNED. *TR
NHTSA ODI #10671589
Mileage unknown · Dec 29, 2014
Service Brakes
AFTER CHECKING THE UNDERSIDE OF MY 04 SILVERADO 1500 4X4 FOR A FUEL FILTER( WHICH IT DOESN'T HAVE) I NOTICED THE BRAKE LINES TO BE SEVERELY CORRODED. MOST OF THE WORST AREAS WERE IN THE BENDS AROUND THE FRAME FROM THE MASTER CYLINDER AND ALONG THE FRAME. *TR
NHTSA ODI #10668664
108,165 miles · Dec 24, 2014
Service Brakes
WHILE EXITING A PARKING LOT, I APPLIED THE BRAKES TO STOP BEFORE PULLING OUT INTO TRAFFIC. THE BRAKE PEDAL WENT TO THE FLOOR SUDDENLY AND WITH NO WARNING. MY TRUCK WENT OUT INTO THE ROAD WHERE I QUICKLY TURNED HARD RIGHT TO AVOID CROSSING THE ROAD. I THEN USED THE EMERGENCY BRAKE TO PULL OVER AND STOP. I AM A MECHANIC BY TRADE,…
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WHILE EXITING A PARKING LOT, I APPLIED THE BRAKES TO STOP BEFORE PULLING OUT INTO TRAFFIC. THE BRAKE PEDAL WENT TO THE FLOOR SUDDENLY AND WITH NO WARNING. MY TRUCK WENT OUT INTO THE ROAD WHERE I QUICKLY TURNED HARD RIGHT TO AVOID CROSSING THE ROAD. I THEN USED THE EMERGENCY BRAKE TO PULL OVER AND STOP. I AM A MECHANIC BY TRADE, AND I KNEW RIGHT AWAY WHAT HAD HAPPENED. MY TRUCK IS IN EXCEPTIONAL CONDITION AS I AM ONLY THE SECOND OWNER. THE FIRST OWNER HAD GARAGE KEPT THIS VEHICLE AND IT HAS NEVER BEEN WRECKED. I DO NOT PLOW SNOW OR OFF-ROAD IT. I HAD A GM CERTIFIED MECHANIC FIX THE TRANSFER CASE ISSUE (GM ALSO KNOWS ABOUT THIS) LAST SUMMER. HE INSPECTED MY TRUCK THEN AND FOUND NOTHING TO BE ALARMED ABOUT. I DID TALK TO HIM ABOUT THE BRAKE LINES, TO WHICH HE TOLD ME THAT HE HAD TO REPLACE HIS IN HIS 2004 SUBURBAN. TWO OTHER FRIENDS OF MINE THAT BOTH HAVE 2004 TAHOES, HAD TO REPLACE THEIR BRAKE LINES DUE TO THE EXACT ISSUE. MY BROTHER-IN-LAW HAS A 2006 SILVERADO, HE REPLACED HIS LINES LAST YEAR, AGAIN FOR THE SAME PROBLEM! THIS IS A MAJOR SAFETY ISSUE AND GM WON'T STAND BEHIND THEIR OWN PRODUCT? I HAVE BEEN A GM OWNER SINCE I COULD DRIVE. I WON'T BE ANYMORE! I AM VERY DISAPPOINTED THAT A RECALL OR SOME TYPE OF ACTION IS NOT BEING DONE. *TR
NHTSA ODI #10668197
55,000 miles · Dec 22, 2014
Electrical SystemFire
TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. WHILE DRIVING APPROXIMATELY 35 MPH, THE INSIDE OF THE VEHICLE EMITTED SMOKE AND THE CONTACT SMELLED BURNING WIRES. THE FAILURE OCCURRED ON SEVERAL OCCASIONS. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 55,000…
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TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. WHILE DRIVING APPROXIMATELY 35 MPH, THE INSIDE OF THE VEHICLE EMITTED SMOKE AND THE CONTACT SMELLED BURNING WIRES. THE FAILURE OCCURRED ON SEVERAL OCCASIONS. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 55,000.
NHTSA ODI #10667756
136,000 miles · Dec 17, 2014
Service Brakes
BACKING OUT MY DRIVEWAY I APPLIED BRAKES AND PEDAL WENT TO THE FLOOR AND SAW BRAKE FLUID LEAKING TO GROUND BELOW DRIVER SIDE FRONT WHEEL AND DOOR. *TR
NHTSA ODI #10666962
61,000 miles · Nov 25, 2014
Electrical SystemElectronic Stability Control (esc)
THE DASH INSTRUMENT CLUSTER FAILED AND DOES NOT READ A CORRECT TEMPERATURE NOR DOES THE OIL GAUGE READ CORRECTLY. THERE IS A CLICKING SOUND WITHIN THE INSTRUMENT PANEL CONTINUOUSLY. THE VEHICLE WAS TAKEN IN FOR SERVICE AT THE GM COMPANY. IT WAS DETERMINED THAT THE CLUSTER IS FAILING AND THE READING ARE NOT CORRECT ON THE DASHBOA…
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THE DASH INSTRUMENT CLUSTER FAILED AND DOES NOT READ A CORRECT TEMPERATURE NOR DOES THE OIL GAUGE READ CORRECTLY. THERE IS A CLICKING SOUND WITHIN THE INSTRUMENT PANEL CONTINUOUSLY. THE VEHICLE WAS TAKEN IN FOR SERVICE AT THE GM COMPANY. IT WAS DETERMINED THAT THE CLUSTER IS FAILING AND THE READING ARE NOT CORRECT ON THE DASHBOARD PANEL ARE NOR RIGHT. IT WILL REQUIRE REPLACEMENT. GM SAYS THAT THE SPECIAL RECALL FOR THIS PROBLEM IS EXPIRED AND THEY WILL NOT FIX MY TRUCK. THE SPECIAL RECALL EXPIRED IN 2011. *TR
NHTSA ODI #10660759
113,250 miles · Nov 20, 2014
EngineFuel/propulsion System
EXHAUST MANIFOLD BOLT ON DRIVER SIDE AT REARMOST PART OF ENGINE HAS BROKEN OFF. *TR
NHTSA ODI #10659741
104,000 miles · Nov 19, 2014
Service Brakes
MY BRAKE PEDAL WENT TO THE FLOOR DUE TO A RUSTED BRAKE LINE. I WAS ABLE TO STOP BUT VERY SCARY. UPON INSPECTION I REALIZED EVERY METAL LINE IN THE TRUCK IS RUSTED AND EITHER ALREADY LEAKING OR WILL BE SOON. I'VE HAD 5 CHEVY TRUCKS AND NEVER ENCOUNTERED ANYTHING LIKE THIS WITH ANY OF THEM. IF I WANT TO KEEP MY TRUCK SAFELY ON THE…
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MY BRAKE PEDAL WENT TO THE FLOOR DUE TO A RUSTED BRAKE LINE. I WAS ABLE TO STOP BUT VERY SCARY. UPON INSPECTION I REALIZED EVERY METAL LINE IN THE TRUCK IS RUSTED AND EITHER ALREADY LEAKING OR WILL BE SOON. I'VE HAD 5 CHEVY TRUCKS AND NEVER ENCOUNTERED ANYTHING LIKE THIS WITH ANY OF THEM. IF I WANT TO KEEP MY TRUCK SAFELY ON THE ROAD THAT I STILL OWE $10,000 ON, I AM NOW FACED WITH THE EXPENSE OF REPLACING EVERY BRAKE LINE, THE TRANSMISSION COOLER LINES, THE ENGINE OIL COOLER LINES, THE POWER STEERING LINES, PUMP AND COOLER, AND THE FUEL LINES. THIS IS RIDICULOUS! CHEVROLET GETS GOOD MONEY FOR THESE TRUCKS AND THEY OBVIOUSLY MESSED UP ON THIS DESIGN. THE RUST PROBLEM WITH THE WORKING PARTS UNDER THE TRUCK IS UNBELIEVABLE. I SHOULD BE ABLE TO GET MORE THAN 100,000 MILES OUT OF A TRUCK THAT COST $40,000! I AM SHOCKED THAT CHEVROLET PUT A STAINLESS STEEL EXHAUST ON THIS TRUCK THAT WILL LAST THE LIFE OF THE VEHICLE, BUT THE HIGH PRESSURE FUEL LINES THAT CAN CAUSE A FIRE OR THE BRAKE LINES THAT COULD KILL MY FAMILY ARE MADE OF INFERIOR RUST PRONE MATERIALS! GENERAL MOTORS SHOULD BE ASHAMED AND TUCK THEIR HEADS BETWEEN THEIR LEGS AS THEY WATCH THEIR LOYAL CUSTOMERS BECOME LOYAL TO ANOTHER AUTOMAKER THAT MIGHT HAVE MORE RELIABLE VEHICLES OR AT LEAST STAND BEHIND THEIR PRODUCTS AND DESIGNS. SHAME ON THEM! *TR
NHTSA ODI #10659200
46,499 miles · Nov 11, 2014
Service Brakes
WAS COMING UP TO A RED LIGHT AND WHEN I PUSH ON THE BRAKE PEDAL , IT FAILED. LOST OF BRAKE PEDAL PRESSURE. GOT OUT AND LOOKED AND THERE WAS A HUGE PUDDLE OF BRAKE FLUID ON THE ROAD BELOW THE DRIVERS SIDE DOOR. *TR
NHTSA ODI #10654233
86,000 miles · Nov 4, 2014
Service Brakes
APPROACHING STOP SIGN, BRAKE PEDAL WENT TO THE FLOOR WITHOUT ANY BRAKING. INSPECTION IDENTIFIED CORROSION THROUGH BRAKE LINE TUBING WALLS CAUSING LOSS OF PRESSURE AND FLUID. MASSIVE SYSTEM FAILURE OCCURED WITHOUT WARNING. *TR
CERTAIN VEHICLES ORIGINALLY BUILT WITH CLOTH SEATS THAT WERE EQUIPPED WITH AN AUTOMATIC AIR BAG PASSENGER SENSING SYSTEM AND LATER REUPHOLSTERED WITH AFTERMARKET LEATHER SEAT COVER KITS ARE INVOLVED. TESTING HAS INDICATED THAT THE AFTERMARKET LEATHER SEAT COVERS CAN CAUSE THE PASSENGER SENSING SYSTEM TO MALFUNCTION.
Consequence & remedy
Consequence: IF THE PASSENGER SENSING SYSTEM MALFUNCTIONS, THE FRONT AIR BAG ON THE PASSENGER SIDE MAY BE DISABLED WHEN IT SHOULD BE ENABLED, OR ENABLED WHEN IT SHOULD BE DISABLED. IN EITHER CASE, IN THE EVENT OF A CRASH THAT REQUIRES AIR BAG DEPLOYMENT, A FRONT PASSENGER'S LEVEL OF INJURY MAY BE INCREASED.
Remedy: BECAUSE A REPLACEMENT LEATHER SEAT COVER THAT IS COMPATIBLE WITH THE PASSENGER SENSING SYSTEM IS NOT AVAILABLE, GENERAL MOTORS (GM) WILL REPURCHASE THESE VEHICLES IN ACCORDANCE WITH THE TERMS STATED IN GM'S LETTER TO OWNERS. THE RECALL BEGAN ON NOVEMBER 6, 2006. OWNERS SHOULD CONTACT GM AT 1-877-477-1022 TO BEGIN THE PROCESS OF REPURCHASING THEIR VEHICLE.
ON CERTAIN TRUCKS EQUIPPED WITH AN 8.1L V8 (RPO L8-VIN G) ENGINE HAVE A CONDITION IN WHICH THE ENGINE FUEL RAIL PULSE DAMPER RETAINER CLIP MAY FRACTURE RESULTING IN INADEQUATE RETENTION OF THE DAMPER.
Consequence & remedy
Consequence: IF THE DAMPER COMES LOOSE, A FUEL LEAK MAY RESULT. FUEL LEAKAGE, IN THE PRESENCE OF AN IGNITION SOURCE, COULD RESULT IN A FIRE.
Remedy: DEALERS WILL REPLACE THE ENGINE FUEL RAIL PULSE DAMPER RETAINER CLIP FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 31, 2006. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438 AND GMC TRUCKS AT 1-866-996-9463.
ON CERTAIN PICKUP TRUCKS EQUIPPED WITH MANUAL TRANSMISSIONS AND BUILT WITH EITHER PBR PARKING BRAKE SYSTEMS OR TRW PARKING BRAKE SYSTEMS, THE PARKING BRAKE FRICTION LININGS MAY WEAR TO AN EXTENT WHERE THE PARKING BRAKE CAN BECOME INEFFECTIVE IN IMMOBILIZING A PARKED VEHICLE.
Consequence & remedy
Consequence: IF THE PARKING BRAKE DOES NOT HOLD, UNINTENDED VEHICLE MOVEMENT COULD OCCUR, WHICH COULD RESULT IN A CRASH.
Remedy: DEALERS WILL INSTALL A LOW-FORCE SPRING CLIP RETAINER FOR VEHICLES EQUIPPED WITH A PBR PARKING BRAKE SYSTEM. ON VEHICLES EQUIPPED WITH THE TRW PARKING BRAKE SYSTEM, DEALERS WILL INSTALL A REDESIGNED PARKING BRAKE CABLE ASSEMBLY. THE RECALL BEGAN ON JULY 29, 2005. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438 OR GMC AT 1-866-996-9463.
ON CERTAIN CREW CAB PICKUP TRUCKS AND SPORT UTILITY VEHICLES, THE 2ND ROW CENTER OCCUPANT SEAT BELT ROUTING MAY MAKE IT DIFFICULT TO POSITION THE LAP PORTION OF THE SAFETY BELT LOW AROUND THE HIPS OF OCCUPANTS, ESPECIALLY SMALLER OCCUPANTS, SEATED IN THIS POSITION. APPROPRIATE USE OF A CHILD SEAT OR BOOSTER SEAT, AS RECOMMENDED FOR SMALL CHILDREN, DOES IMPROVE THE FIT CONDITION FOR THIS USER GROUP. IN ADDITION TO INSTRUCTIONS ON PROPER INFANT AND YOUNG CHILD RESTRAINT (WITH CHILD SEATS OR BOOSTERS), SPECIAL VERBIAGE FOR RESTRAINING OLDER CHILD IS INCLUDED IN THE OWNER'S MANUAL. ALSO, THE SUGGESTED SEAT BELT FIT/ROUTING FOR ADULTS, IRRESPECTIVE OF SEATING POSITION, IS DESCRIBED IN THE OWNER'S MANUAL TEXT.
Consequence & remedy
Consequence: A LAP PORTION OF THE SEAT BELT ROUTING THAT IS NOT LOW AND SNUG ON THE HIPS CAN ALLOW THE LAP BELT TO RIDE UP ON AN OCCUPANT'S ABDOMEN INSTEAD OF FITTING LOW AROUND THEIR HIPBONES, AND THEREFORE, CAN EXPOSE THEM TO MORE RISK OF ABDOMINAL AND INTERNAL ORGAN INJURY.
Remedy: DEALERS WILL CUT OPEN THE GUIDE LOOP, REMOVE A PORTION OF THE LOOP, AND THEN THE REMAINING TWO SIDES SHOULD BE FOLDED OVER AND SECURED WITH A RETAINER FREE OF CHARGE. THE RECALL BEGAN ON JULY 21, 2005. OWNERS MAY CONTACT CADILLAC AT 1-866-982-2339, CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463, OR HUMMER AT 1-800-732-5493.
CERTAIN TRUCKS, SPORT UTILITY VEHICLES, AND VANS EQUIPPED WITH BOSCH HYDRO-BOOST BRAKE ASSEMBLIES, THE HYDRAULIC BRAKE BOOSTER PRESSURE ACCUMULATOR MAY CRACK AND SEPARATE FROM THE HYDRO-BOOST ASSEMBLY DURING NORMAL OPERATING CONDITIONS.
Consequence & remedy
Consequence: IF A SEPARATION OCCURRED AND THE HOOD OF THE VEHICLE WERE OPEN, FRAGMENTS FROM THE ACCUMULATOR COULD CAUSE INJURY TO PEOPLE IN THE IMMEDIATE AREA. THE PRESENCE OF THIS CRACK OR FRACTURED SURFACE COULD ALLOW THE HYDRAULIC FLUID TO LEAK FROM THE ACCUMULATOR CIRCUIT OF THE BOOSTER ASSEMBLY. THE LOSS OF FLUID WOULD CAUSE INCREASED STEERING AND BRAKING EFFORT AND A CRASH MAY OCCUR WITHOUT PRIOR WARNING.
Remedy: DEALERS WILL TEST THE HYDRO-BOOST ASSEMBLY FOR FUNCTIONAL OPERATION OF THE TWO-FUNCTION VALVE. IF THE HYDRO-BOOST ASSEMBLY FAILS THE TEST, DEALERS WILL REPLACE THE ASSEMBLY FREE OF CHARGE. THE RECALL BEGAN ON MARCH 23, 2005. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438, GMC TRUCKS AT 1-866-996-9463 AND HUMMER AT 1-800-732-5493.
CERTAIN EXTENDED AND REGULAR CAB PICKUP TRUCKS AND CARGO VANS CONVERTED TO COMPRESSED NATURAL GAS (CNG) FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 225, 'CHILD RESTRAINT ANCHORAGE SYSTEMS.' THESE VEHICLES HAVE ONE SEATING POSITION, THE CENTER REAR SEAT, EQUIPPED WITH CHILD RESTRAINT LOWER ANCHORAGES.
Consequence & remedy
Consequence: THE STANDARD REQUIRES CHILD SEAT LOWER ANCHORAGES IN TWO SEATING POSITIONS FOR VEHICLES WITH THREE REAR SEATING POSITIONS. THE STANDARD CAB AND CARGO VAN VEHICLES, WHICH ONLY HAVE FRONT SEATING POSITIONS, HAVE AN AIR BAG OFF SWITCH TO DISABLE THE FRONT PASSENGER AIR BAG AND DO NOT HAVE CHILD RESTRAINT LOWER ANCHORAGES IN THE PASSENGER SEAT. THE STANDARD REQUIRES PASSENGER SEAT CHILD SEAT LOWER ANCHORAGES IN VEHICLES WITH AN AIR BAG OFF SWITCH. HOWEVER, THE STANDARD DOES NOT REQUIRE VEHICLES WITH ONLY FRONT SEATING POSITIONS TO HAVE LOWER ANCHORAGE PROVISIONS IF THE VEHICLE IS NOT EQUIPPED WITH AN AIR BAG OFF SWITCH.
Remedy: TO BRING THE STANDARD CAB AND CARGO VAN VEHICLES INTO COMPLIANCE, DEALERS WILL INJECT EPOXY INTO THE AIR BAG OFF SWITCH TO PREVENT AIR BAG ACTIVATION, RELOCATE THE SWITCH BEHIND THE INSTRUMENT PANEL AND THEN INSTALL A COVER OVER THE RESULTING OPENING. THE SUN VISOR LABEL AND OWNER'S MANUAL WILL ALSO BE CHANGED. THE CORRECTION FOR THE EXTENDED CAB VEHICLE WILL CONSIST OF CHANGING THE FRONT PASSENGER SEAT TO A SEAT THAT HAS CHILD RESTRAINT LOWER ANCHORAGES. THE RECALL BEGAN ON SEPTEMBER 9, 2004. OWNERS SHOULD CONTACT CHEVROLET AT 1-800-630-2438 OR GMC AT 1-866-996-9463.
ON CERTAIN PICKUP TRUCKS AND SPORT UTILITY VEHICLES, THE GALVANIZED STEEL TAILGATE SUPPORT CABLES THAT RETAIN THE TAILGATE IN THE FULL OPEN (HORIZONTAL) POSITION MAY CORRODE, WEAKEN, AND EVENTUALLY FRACTURE. IF BOTH CABLES FRACTURED, THE TAILGATE WOULD SUDDENLY DROP AND STRIKE THE TOP SURFACE OF THE REAR BUMPER.
Consequence & remedy
Consequence: ANYONE SITTING OR STANDING ON THE HORIZONTAL SURFACE OF THE TAILGATE WHEN BOTH CABLES FRACTURED COULD BE INJURED BY FALLING FROM THE TAILGATE. ON VEHICLES THAT HAVE HAD THE BUMPER REMOVED, THE TAILGATE MAY DROP EVEN LOWER. ADDITIONALLY, IF THERE IS CARGO ON THE TAILGATE THE CARGO MAY FALL OFF IF THE SUPPORT CABLES FRACTURE.
Remedy: DEALERS WILL REPLACE THE CABLES. INTERIM OWNER NOTIFICATION BEGAN ON APRIL 7, 20004. THE RECALL BEGAN ON SEPTEMBER 24, 2004, WHEN REPLACEMENT PARTS WERE AVAILABLE, AND WILL CONTINUE THROUGH OCTOBER 29, 2004. OWNERS SHOULD CONTACT CADILLAC AT 1-866-982-2339, CHEVROLET AT 1-800-630-2438 OR GMC AT 1-866-996-9463, OR VISIT WWW.MYGMLINK.COM, AND ENTER YOUR VEHICLE IDENTIFICATION NUMBER.
CERTAIN SPORT UTILITY VEHICLES, PICKUP TRUCKS, AND PASSENGER VANS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 135, ?PASSENGER CAR BRAKE SYSTEMS.? SOME OF THESE VEHICLES WERE PRODUCED WITH AN OUT-OF-SPECIFICATION BRAKE HYDRO-BOOST HOUSING RELIEF VALVE BORE.
Consequence & remedy
Consequence: CONSEQUENTLY, THE VALVE O-RING SEAL MAY FRACTURE. STEERING EFFORTS MAY BE SLIGHTLY INCREASED WHILE BRAKING OR PARKING. UNDER CERTAIN DRIVING CONDITIONS, A FRACTURED SEAL MAY REQUIRE A SLIGHT INCREASE IN THE APPLIED BRAKE PEDAL EFFORT TO ACHIEVE THE SAME VEHICLE DECELERATION RATE AS PRIOR TO THE SEAT FRACTURE.
Remedy: DEALERS ARE TO REPLACE THE HYDRO-BOOST RELIEF VALVE. THE RECALL BEGAN ON JUNE 18, 2004. OWNERS SHOULD CONTACT CADILLAC AT 1-866-982-2339; CHEVROLET AT 1-800-630-2438; GMC AT 1-866-996-9463; OR HUMMER AT 1-866-486-6376.
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
EA04012 · Hydraulic Pump Failres
Opened Apr 30, 2004 · Closed Feb 28, 2005
Status: closed (inferred from source dates) · Service Brakes, Hydraulic:power Assist; Steering:hydraulic Power Assist System
GM IS CONDUCTING A RECALL ON ALL SUBJECT VEHICLES BUILD BETWEEN MAY 1999 AND OCTOBER 14, 1999.SIGNIFICANT CHANGES WERE INCORPORATED INTO PRODUCTION IN EARLY OCTOBER 1999, AND VEHICLES BUILT AFTER THAT DATE HAVE LOWER WARRANTY FAILURE RATES.THE COMPLAINT AND WARRANTY DATA APPEAR TO SUPPORT THE EFFECTIVENESS OF THESE CHANGES. GM MADE ADDITIONAL CHANGES IN NOVEMBER 1999, FEBRUARY 2000, MAY 2001, AND FEBRUARY 2004.ODI WILL CONTINUE TO MONITOR THIS PROBLEM AND WILL TAKE FURTHER ACTION, IF WARRANTED, IN THE FUTURE.FOR FURTHER TECHNICAL DETAILS SEE THE ATTACHED ENGINEERING ANALYSIS REPORT.
Additional source detail variants (2)
Service Brakes, Hydraulic:power Assist
GM IS CONDUCTING A RECALL ON ALL SUBJECT VEHICLES BUILD BETWEEN MAY 1999 AND OCTOBER 14, 1999.SIGNIFICANT CHANGES WERE INCORPORATED INTO PRODUCTION IN EARLY OCTOBER 1999, AND VEHICLES BUILT AFTER THAT DATE HAVE LOWER WARRANTY FAILURE RATES.THE COMPLAINT AND WARRANTY DATA APPEAR TO SUPPORT THE EFFECTIVENESS OF THESE CHANGES. GM MADE ADDITIONAL CHANGES IN NOVEMBER 1999, FEBRUARY 2000, MAY 2001, AND FEBRUARY 2004.ODI WILL CONTINUE TO MONITOR THIS PROBLEM AND WILL TAKE FURTHER ACTION, IF WARRANTED, IN THE FUTURE.FOR FURTHER TECHNICAL DETAILS SEE THE ATTACHED ENGINEERING ANALYSIS REPORT.
Steering:hydraulic Power Assist System
GM IS CONDUCTING A RECALL ON ALL SUBJECT VEHICLES BUILD BETWEEN MAY 1999 AND OCTOBER 14, 1999.SIGNIFICANT CHANGES WERE INCORPORATED INTO PRODUCTION IN EARLY OCTOBER 1999, AND VEHICLES BUILT AFTER THAT DATE HAVE LOWER WARRANTY FAILURE RATES.THE COMPLAINT AND WARRANTY DATA APPEAR TO SUPPORT THE EFFECTIVENESS OF THESE CHANGES. GM MADE ADDITIONAL CHANGES IN NOVEMBER 1999, FEBRUARY 2000, MAY 2001, AND FEBRUARY 2004.ODI WILL CONTINUE TO MONITOR THIS PROBLEM AND WILL TAKE FURTHER ACTION, IF WARRANTED, IN THE FUTURE.FOR FURTHER TECHNICAL DETAILS SEE THE ATTACHED ENGINEERING ANALYSIS REPORT.
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