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
30,419 miles · Feb 12, 2007
Service Brakes, Hydraulic
NOTED GRINDING NOISE FROM THE PASSENGER SIDE OF THE VEHICLE WHEN THE BRAKES WERE APPLIED ON A FRIDAY EVENING. NOTIFIED THE DEALERSHIP ASAP ON MONDAY. VEHICLE WAS SERVICED ON THAT TUESDAY. THEY FOUND THAT THE REAR BRAKES WERE GRINDING AND THE PADS HAD DUG INTO A REAR ROTOR. THEY INSTALLED NEW REAR ROTORS AND PADS AS WELL AS THE L…
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NOTED GRINDING NOISE FROM THE PASSENGER SIDE OF THE VEHICLE WHEN THE BRAKES WERE APPLIED ON A FRIDAY EVENING. NOTIFIED THE DEALERSHIP ASAP ON MONDAY. VEHICLE WAS SERVICED ON THAT TUESDAY. THEY FOUND THAT THE REAR BRAKES WERE GRINDING AND THE PADS HAD DUG INTO A REAR ROTOR. THEY INSTALLED NEW REAR ROTORS AND PADS AS WELL AS THE LEFT REAR EMERGENCY BRAKE SHOE. THERE WAS NO WARNING TO THIS FAILURE. I BELIEVE THIS TO BE ANOTHER CASE OF EXCESSIVE REAR BRAKE WEAR AND PREMATURE FAILURE. CUSTOMER COST WAS $557.62 WITH VEHICLE STILL UNDER WARRANTY. THE SERVICE MILEAGE WAS 30,419 MILES. SEE TSB 00-05-23-005B, NHTSA ID#618104. *JB
NHTSA ODI #10182382
35,000 miles · Feb 4, 2007
Electrical System
2004 SILVERADO SPEEDOMETER. THE SPEEDOMETER BEGAN FAILING ABOUT A YEAR AGO AND NOW FAILS ON TRIPS OF 5 MILES OR MORE. SPEEDOMETER MOST OFTEN BEGINS REGISTERING LOW. IT IS SO GRADUAL THAT IT IS NOT OBVIOUS WHEN IT BEGINS HAPPENING. IT WILL EVENTUALLY REGISTER BELOW ZERO AT ANY SPEED. THE ONLY WAY TO RELIABLY JUDGE SPEED IS VIA TH…
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2004 SILVERADO SPEEDOMETER. THE SPEEDOMETER BEGAN FAILING ABOUT A YEAR AGO AND NOW FAILS ON TRIPS OF 5 MILES OR MORE. SPEEDOMETER MOST OFTEN BEGINS REGISTERING LOW. IT IS SO GRADUAL THAT IT IS NOT OBVIOUS WHEN IT BEGINS HAPPENING. IT WILL EVENTUALLY REGISTER BELOW ZERO AT ANY SPEED. THE ONLY WAY TO RELIABLY JUDGE SPEED IS VIA THE TACHOMETER. A FEW TIMES, IT HAS REGISTERED HIGH, SO AS TO READ >100 MPH AT HIGHWAY SPEEDS. MY RESEARCH SHOWS THIS IS A VERY COMMON PROBLEM WITH THIS MAKE/MODEL OF GM VEHICLE. OF COURSE THIS IS A VERY DANGEROUS SITUATION, ESPECIALLY WHEN IT FIRST OCCURRED WITH ME. I AM UNCERTAIN HOW FAST I WAS ACTUALLY GOING WHEN I REALIZED I WAS GOING WAY TOO FAST IN RELATION TO WHAT THE SPEEDOMETER WAS REPORTING. I BELIEVE THE SPEEDOMETER SHOULD BE CONSIDERED A CRITICAL PIECE OF SAFETY EQUIPMENT. IN ADDITION, LAW ENFORCEMENT REQUIRES YOU TO FOLLOW POSTED SPEED LIMITS, WHICH IS DIFFICULT WHEN THE SPEEDOMETER IS REPORTING INACCURATELY. IN MY OPINION, THIS DEVICE SHOULD NOT FAIL AT 35000 MILES. AGAIN, IN MY OPINION, THIS IS A MANUFACTURING DEFECT AND THE CONSUMER SHOULD NOT HAVE TO BEAR THE EXPENSE FOR THE REPAIR. *JB
NHTSA ODI #10181547
20,000 miles · Feb 4, 2007
Trailer Hitches
AFTER READING ON SEVERAL WEB FORUMS ABOUT GM HITCH RECEIVER PROBLEMS, I CHECKED MINE AND WAS SHOCKED THAT ALL BUT ONE WELD ON MY RECEIVER SHOWED SIGNS OF RUSTING. TWO WERE TO THE POINT WHERE CRACKED WELDS WERE OBVIOUS. THE DEALER OFFERED TO REPLACE IT BUT I DID NOT WANT A GM HITCH SO I USED ANOTHER RECEIVER AT MY EXPENSE. I HAD …
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AFTER READING ON SEVERAL WEB FORUMS ABOUT GM HITCH RECEIVER PROBLEMS, I CHECKED MINE AND WAS SHOCKED THAT ALL BUT ONE WELD ON MY RECEIVER SHOWED SIGNS OF RUSTING. TWO WERE TO THE POINT WHERE CRACKED WELDS WERE OBVIOUS. THE DEALER OFFERED TO REPLACE IT BUT I DID NOT WANT A GM HITCH SO I USED ANOTHER RECEIVER AT MY EXPENSE. I HAD TOWED A 7700 POUND TRAILER ABOUT 20,000 MILES MAX. HITCH HAS BEEN DISPOSED OF. I HAVE SOME PHOTOS (NOT VERY GOOD). IT IS A 2004 CHEV, 2500HD, DIESEL. *NM
NHTSA ODI #10181518
Mileage unknown · Jan 31, 2007
Air Bags
2004 CHEVROLET SILVERADO WITH SEAT COVER CONCERNS**CC A RECALL WAS ISSUED REGARDING THIS PROBLEM WITH THE AIR BAGS AND SEAT COVERS. THE CONSUMER WANTED TO KNOW IF HIS VEHICLE WAS INCLUDED IN THE RECALL. *JB
NHTSA ODI #10181632
60,000 miles · Jan 31, 2007
Electrical System
ERRATIC SPEED READING ON THE SPEEDOMETER OF MY CHEVY SILVERADO. *NM
NHTSA ODI #10181220
48,700 miles · Jan 31, 2007
Electrical System
WHILE TRAVELING, MY SPEEDOMETER ON MY 2004 CHEVY SILVERADO WOULD NOT READ AN ACCURATE MILEAGE, FOR EXAMPLE WHILE TRAVELING 60 MPH, THE SPEEDOMETER WOULD BE IN EXCESS OF 100 MPH, THUS CAUSING A SAFETY ISSUE, DUE TO THE FACT THAT I DO NOT KNOW THE EXACT SPEED OF MY VEHICLE, AND CAN ONLY JUDGE THAT MY VEHICLE IS TRAVELING THE CORRE…
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WHILE TRAVELING, MY SPEEDOMETER ON MY 2004 CHEVY SILVERADO WOULD NOT READ AN ACCURATE MILEAGE, FOR EXAMPLE WHILE TRAVELING 60 MPH, THE SPEEDOMETER WOULD BE IN EXCESS OF 100 MPH, THUS CAUSING A SAFETY ISSUE, DUE TO THE FACT THAT I DO NOT KNOW THE EXACT SPEED OF MY VEHICLE, AND CAN ONLY JUDGE THAT MY VEHICLE IS TRAVELING THE CORRECT SPEED BY PACING OTHER VEHICLES ON THE HIGHWAY. IN FACT I WAS PULLED OVER FOR SPEEDING, AND WHEN ASKED HOW FAST I WAS GOING, I SHOWED THE POLICE OFFICER THAT MY SPEEDOMETER WAS READING 40 MPH WHEN I WAS PARKED, WHEN IN FACT I WAS GOING APPROXIMATELY 10 MILES ABOVE THE SPEED LIMIT. I WENT TO THE CHEVY DEALERSHIP, AND THE SERVICE REPRESENTATIVE SAID THAT HE HAS HAD TO REPLACE A COUPLE OF THESES, AND WITH PARTS AND LABOR WOULD BE APPROXIMATELY $700. MY WARRANTY EXPIRED JUST 700 MILES PRIOR TO THIS DEFECT STARTING. I WAS ABOUT TO PAY TO GET THIS REPAIRED, WHEN I DECIDED TO DO RESEARCH ONLINE TO SEE IF THIS WAS A PROBLEM WITH OTHER SILVERADOS, AND COME TO FIND OUT, THERE ARE MANY CASES LIKE MINE. I FEEL DUE TO THE FACT THAT THERE ARE SO MANY CASES LIKE THIS, THAT IT SHOULD BE CONSIDERED A DEFECT, AND BE REPAIRED AT NO COST TO THE CUSTOMER. *NM
NHTSA ODI #10181181
Mileage unknown · Jan 30, 2007
Electrical System
I HAVE A 2004 2500 CHEVY TRUCK THE SPEEDOMETER WILL SOMETIMES START AT 0 AND SOMETIMES AT 60 MPH AND SOMETIMES AT 30 MPH I CALLED THE DEALER AND THEY TOLD ME TO BRING IT IN. THEY SAID THEY WOULD KEEP MY TRUCK FOR 2 DAYS. THEY KNEW JUST WHAT WAS WRONG WITH IN. THEY WANT $350 DOLLARS TO DO THIS. I DON'T THINK I SHOULD HAVE TO …
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I HAVE A 2004 2500 CHEVY TRUCK THE SPEEDOMETER WILL SOMETIMES START AT 0 AND SOMETIMES AT 60 MPH AND SOMETIMES AT 30 MPH I CALLED THE DEALER AND THEY TOLD ME TO BRING IT IN. THEY SAID THEY WOULD KEEP MY TRUCK FOR 2 DAYS. THEY KNEW JUST WHAT WAS WRONG WITH IN. THEY WANT $350 DOLLARS TO DO THIS. I DON'T THINK I SHOULD HAVE TO PAY FOR A DEFECT ON THE SPEEDOMETER. NOT FOR SURE ON WHEN I BOUGHT THE TRUCK. *JB
NHTSA ODI #10181115
12,200 miles · Jan 29, 2007
Electrical System
SPEEDOMETER QUIT WORKING. AT A STOP IT WAS SHOWING 120 MILES AN HOUR, SOMETIMES MORE SOMETIMES LESS. AFTER RESEARCHING ON CAR FORUMS ON THE INTERNET I FOUND MANY, MANY PEOPLE HAVE HAD THESE SAME PROBLEMS. *JB
NHTSA ODI #10181044
58,000 miles · Jan 29, 2007
Electrical System
MY SPEEDOMETER ON MY 2004 SILVERADO FUNCTIONS INCORRECTLY. IT READS ANYWHERE BETWEEN 30 AND 120 AND I HAVE NO IDEA WHAT MY SPEED IS. APPARENTLY THOUSANDS AND THOUSANDS OF OWNERS ARE HAVING THIS PROBLEM. THIS IS APPARENTLY A SAFETY ISSUE AND THERE MOST DEFINITELY SHOULD BE A RECALL. *NM
NHTSA ODI #10180997
63,000 miles · Jan 26, 2007
Electrical SystemEngine And Engine Cooling
TL* - THE CONTACT OWNS A 2004 CHEVROLET SILVERADO Z71. THE CONTACT STATED THAT THE SPEEDOMETER DID NOT ACCURATELY REGISTER THE SPEED BEING DRIVEN IN THIS VEHICLE. EVEN WHEN NOT DRIVING THE SPEEDOMENTER REGISTERED A SPEED. THE CONTACT STATED THAT THE ENGINE LIGHT HAS BEEN ON 80% OF THE TIME SINCE HE OWNED THE VEHICLE.*AK UP…
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TL* - THE CONTACT OWNS A 2004 CHEVROLET SILVERADO Z71. THE CONTACT STATED THAT THE SPEEDOMETER DID NOT ACCURATELY REGISTER THE SPEED BEING DRIVEN IN THIS VEHICLE. EVEN WHEN NOT DRIVING THE SPEEDOMENTER REGISTERED A SPEED. THE CONTACT STATED THAT THE ENGINE LIGHT HAS BEEN ON 80% OF THE TIME SINCE HE OWNED THE VEHICLE.*AK UPDATED 2/22/2007 - *NM
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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