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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.

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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

Electrical System complaints

159 reports
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116,000 miles · May 25, 2012
Electrical SystemFuel System, Gasoline

TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. THE CONTACT STATED THEY RECEIVED A LETTER APPROXIMATELY ONE YEAR AGO FROM THE MANUFACTURER STATING THAT THE INSTRUMENT PANEL WARRANTY WAS EXTENDED TO SEVEN YEARS AND 70,000 MILES. IN ADDITION, THE CONTACT WAS ADVISED NOT TO BRING THE VEHICLE IN UNDER THE WARRANTY UNLESS THE FUEL G…

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TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. THE CONTACT STATED THEY RECEIVED A LETTER APPROXIMATELY ONE YEAR AGO FROM THE MANUFACTURER STATING THAT THE INSTRUMENT PANEL WARRANTY WAS EXTENDED TO SEVEN YEARS AND 70,000 MILES. IN ADDITION, THE CONTACT WAS ADVISED NOT TO BRING THE VEHICLE IN UNDER THE WARRANTY UNLESS THE FUEL GAUGE HAD COMPLETELY FAILED. THE CONTACT STATED THAT THE SPEEDOMETER HAD BEEN STUCK AT 120 MPH. LATER, THE SPEEDOMETER INDEPENDENTLY DROPPED BELOW ZERO AND REMAINED STUCK THERE. IN ADDITION, THE ENGINE RPM GAUGE WOULD FLUCTUATE SPORADICALLY BUT THE ENGINE WOULD NOT RESPOND. THE CONTACT TOOK THE VEHICLE TO THE DEALER AND WAS TOLD THAT THE FAILURES WERE NOT COVERED UNDER THE EXTENDED WARRANTY FOR THE INSTRUMENT PANEL AND WAS ADVISED THAT THE ENTIRE INSTRUMENT PANEL WOULD NEED TO BE REPLACED. THE FAILURE MILEAGE WAS 116,000 AND THE CURRENT MILEAGE WAS 117,000. UPDATED 7/18/12 *CN

NHTSA ODI #10459620

46,746 miles · Dec 2, 2011
Electrical System

THE INSTRUMENT PANEL STOPPED WORKING ON MY 2004 CHEVROLET SILVERADO. I FOUND LOTS OF COMPLAINTS ON THIS PROBLEM ONLINE. WHEN I CALLED THE LOCAL DEALER TO SEE ABOUT GETTING MY VEHICLE FIXED THEY ADVISED EVEN THOUGH THE MILEAGE WAS OLD IT WAS 4 MONTH TO OLD TO BE COVERED BY THE FIX. THEY KNOW THEY SOLD VEHICLES WITH BAD INSTRUMENT…

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THE INSTRUMENT PANEL STOPPED WORKING ON MY 2004 CHEVROLET SILVERADO. I FOUND LOTS OF COMPLAINTS ON THIS PROBLEM ONLINE. WHEN I CALLED THE LOCAL DEALER TO SEE ABOUT GETTING MY VEHICLE FIXED THEY ADVISED EVEN THOUGH THE MILEAGE WAS OLD IT WAS 4 MONTH TO OLD TO BE COVERED BY THE FIX. THEY KNOW THEY SOLD VEHICLES WITH BAD INSTRUMENT PANELS BUT ARE NOT FIXING THE PROBLEM. *TR

NHTSA ODI #10438168

40,000 miles · Nov 9, 2011
Electrical SystemUnknown Or OtherVehicle Speed Control

TACHOMETER, SPEEDOMETER AND TEMPERATURE GAUGE FAILURES. *TR

NHTSA ODI #10434968

113,000 miles · Oct 8, 2011
Electrical System

WELL I BOUGHT THE 2004 SILVERADO TRUCK IN JUNE OF 2011 AND I NOTICED THAT THE SPEEDOMETER STUTTER A LITTLE BIT GOING EACH WAY. THEN JUST RECENTLY I EXPERIENCED THE SPEEDOMETER JUST STOP WORKING BY GETTING STUCK AT 30MPH. I PULLED OVER THE TRUCK AND TURNED IT OF TO MAYBE RESET THE SYSTEM BUT EVEN WITH THE TRUCKED TURNED OFF THE S…

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WELL I BOUGHT THE 2004 SILVERADO TRUCK IN JUNE OF 2011 AND I NOTICED THAT THE SPEEDOMETER STUTTER A LITTLE BIT GOING EACH WAY. THEN JUST RECENTLY I EXPERIENCED THE SPEEDOMETER JUST STOP WORKING BY GETTING STUCK AT 30MPH. I PULLED OVER THE TRUCK AND TURNED IT OF TO MAYBE RESET THE SYSTEM BUT EVEN WITH THE TRUCKED TURNED OFF THE SPEEDOMETER WAS STILL AT 30MPH. I TRIED HITTING THE DASH A COUPLE OF TIMES TO SEE IF THAT WOULD WORK. IT DIDN'T WORK SO I TRIED DRIVING SOME MORE AND THE SPEEDOMETER SAID I WAS DOING 90MPH WHEN I WAS ONLY GOING 65MPH BECAUSE I HAD ANOTHER PERSON ON THE ROAD TELL ME THEY WERE GOING 65PMH. I EVEN TRIED TO HIT THE BRAKES MULTIPLE TIMES TO GET THE NEEDLE TO DROP BELOW 30MPH. IT PARTICIALLY WORKED BY MAKING IT GO DOWN BUT THEN IT GOT STUCK AT 10MPH EVEN WITH THE TRUCK TURNED OFF. SO I CAME HOME AND CHECKED THE RECALLS FOR MY MODEL TRUCK AND YEAR AND APPARENTLY THERE WAS A RECALL FOR THIS PROBLEM BUT ONLY FOR VEHICLES UNDER 70000 MILES WHICH I THINK ISN'T RIGHT BECAUSE ITS A FAILURE WITH YOUR ELECTRICAL CLUSTERS THAT YOU KNOW IS THERE BUT WONT FIX WHICH MAKES IT NOT LOOK GOOD FOR YOU DESIGNERS. I AM A DIESEL MECHANIC AND I WOULD TELL PEOPLE THAT THIS IS A SAFETY HAZARD. *TR

NHTSA ODI #10429165

142,000 miles · Jul 18, 2011
Electrical System

THE SPEEDOMETER STOPPED SHOWING ACCURATE SPEED, ODOMETER STILL WORKS. WE TOOK THE TRUCK IN FOR SERVICE AND FOUND THAT IT THE FAILURE WAS A COMMON OCCURRENCE, BUT NOT COVERED UNDER ANY WARRANTY OR RECALL. THE COST OF REPAIR WAS APPROXIMATELY $500.00. WE NOW USE GARMIN FOR SPEED CONTROL.

NHTSA ODI #10414273

80,000 miles · Apr 22, 2011
Electrical System

TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. THE CONTACT STATED THE INSTRUMENT PANEL FAILED. THE CONTACT TOOK THE VEHICLE TO THE DEALER AND THEY REMOVED THE INSTRUMENT PANEL FOR INSPECTION. ONCE THE INSTRUMENT PANEL WAS INSTALLED BACK IN THE VEHICLE, THE PANEL OPERATED AS NORMAL WITH THE EXCEPTION OF THE OIL PRESSURE WARNING…

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TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. THE CONTACT STATED THE INSTRUMENT PANEL FAILED. THE CONTACT TOOK THE VEHICLE TO THE DEALER AND THEY REMOVED THE INSTRUMENT PANEL FOR INSPECTION. ONCE THE INSTRUMENT PANEL WAS INSTALLED BACK IN THE VEHICLE, THE PANEL OPERATED AS NORMAL WITH THE EXCEPTION OF THE OIL PRESSURE WARNING GAUGE. THE DEALER DID NOT REPLACE THE INSTRUMENT PANEL WITH A NEW ONE NOR WERE THERE ANY REPAIRS PERFORMED. THE CONTACT SPOKE TO THE MANUFACTURER AND WAS TOLD THAT THE FAILURE WAS A COMMON ISSUE WITH THE YEAR, MAKE AND MODEL BUT THE MANUFACTURER WAS ONLY WILLING TO ASSIST WITH REPAIRS ON THOSE VEHICLE WITH 75,000 MILES OR LESS. THE VIN WAS UNAVAILABLE. THE FAILURE MILEAGE WAS 80,000 AND THE CURRENT MILEAGE WAS 82,000.

NHTSA ODI #10397128

129,217 miles · Mar 3, 2011
Electrical System

SPEEDOMETER STOPPED WORKING. ODOMETER IS STILL WORKING.

NHTSA ODI #10388148

95,000 miles · Feb 1, 2011
Electrical System

TL*THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. THE CONTACT STATED THAT THE SPEEDOMETER ON HIS VEHICLE WAS FAULTY. THE VEHICLE WAS TAKEN TO THE DEALER WHO STATED THAT INSTEAD OF JUST REPAIRING THE SPEEDOMETER, THEY NEEDED TO REPLACED THE ENTIRE INSTRUMENT CLUSTER. THE DEALER WAS CONTACTED AND STATED THAT THEY WERE AWARE OF THE F…

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TL*THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. THE CONTACT STATED THAT THE SPEEDOMETER ON HIS VEHICLE WAS FAULTY. THE VEHICLE WAS TAKEN TO THE DEALER WHO STATED THAT INSTEAD OF JUST REPAIRING THE SPEEDOMETER, THEY NEEDED TO REPLACED THE ENTIRE INSTRUMENT CLUSTER. THE DEALER WAS CONTACTED AND STATED THAT THEY WERE AWARE OF THE FAILURE BUT WERE UNABLE TO HELP SINCE THE WARRANTY HAD EXPIRED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 95,000 AND THE CURRENT MILEAGE WAS 98,000. UPDATED 3/14/11 *CN THE CONSUMER WAS INFORMED CHEVROLET WOULD REPLACE THE INSTRUMENT CLUSTER UP TO 5,000 MILES AND THEY WOULD BILL THE CONSUMER $500-700 TO HAVE THE INSTRUMENT CLUSTER REPLACED SINCE THE VEHICLE HAD OVER 95,000 MILES. UPDATED 03.21.11.

NHTSA ODI #10379873

Mileage unknown · Sep 13, 2010
Electrical System

ODOMETER FAILER. 2004 CHEVY SILVERADO. 61,966 MILES. *TR

NHTSA ODI #10355188

99,820 miles · Sep 1, 2010
Electrical System

SPEEDODOMETER CHANGES AND MAY BE CORRECT, NEXT TIME MAY SHOW OFF 5 MILES AN HOUR, NEXT TIME MAY BE OFF 60 MILES AN HOUR, MAY BE FAST, MAY BE SLOW. *TR

NHTSA ODI #10353403

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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