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2004 Chevrolet Silverado

Owner reports · Recalls · Investigations

More warning signs than most Silverado years

Owner complaints for the 2004 Chevrolet Silverado are substantially higher than the model-year median of 76.

About this comparison →

When problems were reported

Mileage at the reported incident

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
2,000 miles · Jun 14, 2006
Electrical System

WHEN THE OUTSIDE AIR TEMPERATURE GETS APPROXIMATELY 75 DEGREES, ESPECIALLY OVER 85 DEGREES, THE VEHICLE'S HORN WILL NOT OPERATE. IT HAS BEEN A PROBLEM SINCE THE VEHICLE WAS DELIVERED NEW. IT HAS BEEN TO THE DEALER FOR REPAIR 3 TIMES. EACH TIME IT IS CLAIMED TO HAVE BEEN FIXED. YET, ONCE THE OUTSIDE TEMP GOES UP THE HORN WILL …

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WHEN THE OUTSIDE AIR TEMPERATURE GETS APPROXIMATELY 75 DEGREES, ESPECIALLY OVER 85 DEGREES, THE VEHICLE'S HORN WILL NOT OPERATE. IT HAS BEEN A PROBLEM SINCE THE VEHICLE WAS DELIVERED NEW. IT HAS BEEN TO THE DEALER FOR REPAIR 3 TIMES. EACH TIME IT IS CLAIMED TO HAVE BEEN FIXED. YET, ONCE THE OUTSIDE TEMP GOES UP THE HORN WILL NOT WORK. AFTER SOME TIME WHILE DRIVING IT MAY OPERATE INTERMITTENTLY. IT IS A SERIOUS HAZARD SINCE, DURING WARM WEATHER, IT IS LIKELY TO NOT WORK IN AN EMERGENCY. ON AT LEAST 5 OCCASIONS IT FAILED DURING AN EMERGENCY WHEN I TRIED TO USE THE HORN. I REGISTERED A COMPLAINT WITH GENERAL MOTORS (FILE NO 1-413956517) BUT THEY HAVE BEEN NON-RESPONSIVE. *NM

NHTSA ODI #10159868

37,172 miles · Jun 12, 2006
VisibilityFire

WHILE PARKED ON THE STREET, LOCKED AND NOT IN USE FOR 7 DAYS, A FIRE APPARENTLY STARTED IN THE WINDSHIELD WIPER MOTOR. IT WAS SIGNIFICANTLY DAMAGED AND SPREAD TO THE RIGHT FRONT WHEEL WELL AND LEFT FRONT BUMPER COWLING, BEFORE IT WAS PUT OUT WITH A FIRE EXTINGUISHER. THE GM INVESTIGATOR HAS INDICATED THAT IT IS THEIR DETERMINAT…

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WHILE PARKED ON THE STREET, LOCKED AND NOT IN USE FOR 7 DAYS, A FIRE APPARENTLY STARTED IN THE WINDSHIELD WIPER MOTOR. IT WAS SIGNIFICANTLY DAMAGED AND SPREAD TO THE RIGHT FRONT WHEEL WELL AND LEFT FRONT BUMPER COWLING, BEFORE IT WAS PUT OUT WITH A FIRE EXTINGUISHER. THE GM INVESTIGATOR HAS INDICATED THAT IT IS THEIR DETERMINATION THAT THE PROBLEM STARTED EXTERNAL TO THE VEHICLE. *NM

NHTSA ODI #10159630

60,000 miles · May 28, 2006
Electrical System

2000 MILES AFTER MY WARRANTY WENT OUT SO DID MY SPEEDOMETER IT WILL WORK FOR ABOUT A WEEK THEN REGISTER 60-100 MPH EVEN SETTING STILL. I CONTACTED EARL DUNN IN MADISON CAUSE THAT IS WHERE I PURCHASED THE TRUCK AND THE EXTENDED WARRANTY THAT REALLY WASN'T EXTENDED. THE WARRANTY THEY SOLD ME DIDN'T EXCEED THE MANF. WARRANTY . THEY…

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2000 MILES AFTER MY WARRANTY WENT OUT SO DID MY SPEEDOMETER IT WILL WORK FOR ABOUT A WEEK THEN REGISTER 60-100 MPH EVEN SETTING STILL. I CONTACTED EARL DUNN IN MADISON CAUSE THAT IS WHERE I PURCHASED THE TRUCK AND THE EXTENDED WARRANTY THAT REALLY WASN'T EXTENDED. THE WARRANTY THEY SOLD ME DIDN'T EXCEED THE MANF. WARRANTY . THEY TOLD ME AT THE DEALER IT WAS A ADDITIONAL 36,000 MILES ,HUH ,THAT'S WHAT I GET FOR NOT READING THE VERY FINE PRINT. NOW I CAN HONESTLY SEE WHY AMERICAN COMPANY'S ARE GOING BELLY UP AND THAT'S A SAD THING. LAST GM FOR ME. I CONTACTED A DEALER IN CARTHAGE TN THERE SERVICE MANGER SAID THEY WOULD HAVE FIXED THE PROBLEM, NO COST , BUT SINCE IT WAS PURCHASED AT ANOTHER DEALER HE COULDN'T REALLY DO NOTHING ABOUT IT. HE ALSO SAID IT WAS A MAJOR PROBLEM FOR CHEVY/GMC, P/U'S,AVALANCHES,ESCALADES,TAHOES, BUT GM WAS DOING NOTHING ABOUT IT AND THEY COULDN'T GET NEW PARTS TO FIX IT. THE INSTRUMENT CLUSTER HAD TO BE SENT OFF TO BE REMANUFACTURED.

NHTSA ODI #10158465

19,500 miles · May 8, 2006
Service Brakes, Hydraulic

MY 2004 CHEVROLET SILVERADO HAS DANGEROUS BRAKE PROBLEMS. THE BRAKES GIVE WAY UNEXPECTEDLY WITH THE PEDAL GOING ALL THE WAY TO THE FLOOR. THIS HAS HAPPENED FOUR TIMES IN THE PAST TWO MONTHS- EACH TIME THE SITUATION WAS DIFFERENT. THE FIRST TIME I WAS JUST PARKING THE CAR IN THE GARAGE MOVING IT FROM THE DRIVEWAY. THE SECOND …

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MY 2004 CHEVROLET SILVERADO HAS DANGEROUS BRAKE PROBLEMS. THE BRAKES GIVE WAY UNEXPECTEDLY WITH THE PEDAL GOING ALL THE WAY TO THE FLOOR. THIS HAS HAPPENED FOUR TIMES IN THE PAST TWO MONTHS- EACH TIME THE SITUATION WAS DIFFERENT. THE FIRST TIME I WAS JUST PARKING THE CAR IN THE GARAGE MOVING IT FROM THE DRIVEWAY. THE SECOND TIME I WAS PULLING A TRAILER LOADED WITH A TRACTOR ACROSS TOWN AND THE ONLY THING THAT STOPPED ME WAS THE ELECTRIC BRAKES ON THE TRAILER. THE THIRD TIME WAS MOVING IT ACROSS THE YARD. THE LAST TIME WAS IN THE CITY DRIVING TO A STORE, I WAS GOING DOWN A HILL TO A RED LIGHT. THE PEDAL SUDDENLY GIVES WAY AND GOES ALL THE WAY TO THE FLOOR WITH NO WARNING. IT THEN BEGINS WORKING AGAIN JUST AS SUDDENLY AS IT QUIT. THE BRAKE PEDAL WILL SNAP BACK UP AND THE BRAKES START TO HOLD AGAIN. ONE TIME IT TOOK 15 MINUTES BEFORE IT STARTED WORKING AGAIN, THE OTHER TIMES IT WAS A MATTER OF 3 TO 5 MINUTES WITHOUT BRAKES. *JB

NHTSA ODI #10156985

14,000 miles · May 2, 2006
Tires

2004 SILVERADO FRONT SHOCK AND COIL SPRING INSULATOR FAILURES. *TS THE FRONT SPINDLE ALSO FAILED. THE CONSUMER BELIEVED THERE WAS A PROBLEM WITH THE TIRES. *JB

NHTSA ODI #10157312

900 miles · May 1, 2006
Air BagsCrashInjury

DT*: THE CONTACT STATED WHILE STOPPED AT A STOP SIGN, THE VEHICLE WAS HIT ON THE DRIVER'S SIDE FRONT END. THE AIR BAGS DID NOT DEPLOY. SEAT BELTS WERE IN USE HOWEVER BACK AND NECK INJURIES WERE SUSTAINED. THE IMPACT WAS SO SEVERE; BOTH PASSENGER TIRES CAME OFF THE RIMS AND DUG INTO THE PAVEMENT. THE POLICE WERE ON SCENE AND…

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DT*: THE CONTACT STATED WHILE STOPPED AT A STOP SIGN, THE VEHICLE WAS HIT ON THE DRIVER'S SIDE FRONT END. THE AIR BAGS DID NOT DEPLOY. SEAT BELTS WERE IN USE HOWEVER BACK AND NECK INJURIES WERE SUSTAINED. THE IMPACT WAS SO SEVERE; BOTH PASSENGER TIRES CAME OFF THE RIMS AND DUG INTO THE PAVEMENT. THE POLICE WERE ON SCENE AND A REPORT WAS FILED. THE VEHICLE WAS TOWED TO DEALER, UPON INSPECTION NO DETERMINATION COULD BE MADE WHY THE AIR BAGS DID NOT DEPLOY. THE MANUFACTURER WAS ALERTED. UPDATED 05/16/06. *JB

NHTSA ODI #10156562

15,000 miles · Apr 24, 2006
Suspension

THE CONSUMER STATED THE COIL SPRING INSULATORS FAILED. *JB

NHTSA ODI #10156271

19,000 miles · Apr 24, 2006
Suspension

THE CONSUMER STATED THE FRONT SPINDLE FAILED. *JB

NHTSA ODI #10156270

Mileage unknown · Apr 24, 2006
SuspensionTires

THE CONSUMER STATED THE LEFT FRONT SHOCK FAILED. *JB THE CONSUMER BELIEVED THERE WAS A PROBLEM WITH TIRES THAT CAUSED THE SHOCKS TO FAIL. *JB

NHTSA ODI #10156269

49,750 miles · Apr 24, 2006
Power Train

LEFT FRONT HUB ASSEMBLY TOTAL FAILURE. APPARENTLY HUB STAYED LOCKED IN FOUR WHEEL DRIVE AND DESTROYED HUB. THE FAILURE WAS NOTED WHEN EXTREME VIBRATION AND LACK OF STEERING RESPONSE OCCURRED. FAILURE WAS AT 49,750 MILES. HUB ASSEMBLIES SHOULD LAST LIFE OF VEHICLE. REPAIRED AT MY OWN COST AFTER CHEVROLET REFUSED TO REPAIR. *…

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LEFT FRONT HUB ASSEMBLY TOTAL FAILURE. APPARENTLY HUB STAYED LOCKED IN FOUR WHEEL DRIVE AND DESTROYED HUB. THE FAILURE WAS NOTED WHEN EXTREME VIBRATION AND LACK OF STEERING RESPONSE OCCURRED. FAILURE WAS AT 49,750 MILES. HUB ASSEMBLIES SHOULD LAST LIFE OF VEHICLE. REPAIRED AT MY OWN COST AFTER CHEVROLET REFUSED TO REPAIR. *JB

NHTSA ODI #10155939

Official recalls

8

06V417000 · Air Bags:frontal

Oct 31, 2006

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.

06V289000 · Engine And Engine Cooling

Aug 3, 2006

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.

05V161000 · Parking Brake

Apr 22, 2005

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.

05V163000 · Seat Belts:rear/other

Apr 22, 2005

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.

05V043000 · Service Brakes, Hydraulic

Feb 8, 2005

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.

04V225000 · Seat Belts:front:anchorage

May 11, 2004

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.

04V129000 · Structure:body:tailgate:hinge And Attachments

Mar 17, 2004

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.

04V045000 · Service Brakes, Hydraulic

Feb 4, 2004

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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