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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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40,000 miles · Mar 14, 2016
Electrical System

INSTRUMENT PANEL/CLUSTER IS NO LONGER FUNCTIONING. SPEEDOMETER, TACHOMETER, OIL PRESSURE GAUGE AND SO ON ARE ERRATIC AND GIVING FALSE READINGS. DEALER IS NOT WILLING TO ASSIST. PLEASE ADVISE, RC, ESQUIRE.

NHTSA ODI #10849668

78,344 miles · Jan 26, 2016
Electrical SystemSeats

TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. THE CONTACT HEARD AN ABNORMAL NOISE COMING FROM THE DRIVER SEAT. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE ECM BOX WAS DAMAGED AND NEEDED REPLACEMENT. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE CONTACT ALSO STATED THAT THE SAME F…

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TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. THE CONTACT HEARD AN ABNORMAL NOISE COMING FROM THE DRIVER SEAT. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE ECM BOX WAS DAMAGED AND NEEDED REPLACEMENT. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE CONTACT ALSO STATED THAT THE SAME FAILURE OCCURRED IN DECEMBER OF 2015. THE APPROXIMATE FAILURE MILEAGE WAS 78,344.

NHTSA ODI #10822345

277,638 miles · Nov 23, 2015
Electrical System

TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. THE CONTACT STATED THAT THE INSTRUMENT PANEL WOULD NOT ILLUMINATE AT NIGHT TO DISPLAY PERTINENT INFORMATION, SUCH AS THE SPEEDOMETER. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE FAILURE MILEAGE WAS 277,638.

NHTSA ODI #10806351

Mileage unknown · Mar 26, 2015
Electrical System

TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. THE CONTACT STATED THAT THE INSTRUMENT PANEL FAILED ON THE VEHICLE. THE ODOMETER WORKED, BUT THE FUEL GAUGE AND ALL OTHER GAUGES FAILED. THE DEALER STATED THAT THE ENTIRE INSTRUMENT CLUSTER NEEDED TO BE REPLACED. THE VEHICLE HAD NOT BEEN REPAIRED. THE FAILURE MILEAGE WAS UNKNOWN.

NHTSA ODI #10701934

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

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

60,139 miles · Oct 29, 2014
Electrical System

THE OIL PRESSURE GAUGE ON MY INSTRUMENT CLUSTER IS FAULTY. I WAS DRIVING DOWN THE INTERSTATE AT ABOUT 75MPH WHEN I NOTICE IT WAS PEGGED OUT. I IMMEDIATELY PULL OFF TO THE SIDE OF THE ROAD AND TURN MY TRUCK OFF THINKING SOMETHING WAS WRONG WITH MY OIL PRESSURE WHEN I FOUND OUT THAT IT WAS THE GAUGE THAT WAS FAULTY. AFTER DOING SO…

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THE OIL PRESSURE GAUGE ON MY INSTRUMENT CLUSTER IS FAULTY. I WAS DRIVING DOWN THE INTERSTATE AT ABOUT 75MPH WHEN I NOTICE IT WAS PEGGED OUT. I IMMEDIATELY PULL OFF TO THE SIDE OF THE ROAD AND TURN MY TRUCK OFF THINKING SOMETHING WAS WRONG WITH MY OIL PRESSURE WHEN I FOUND OUT THAT IT WAS THE GAUGE THAT WAS FAULTY. AFTER DOING SOME RESEARCH ON THE INTERNET, I FOUND OUT THAT A LOT OF PEOPLE WERE HAVING PROBLEMS WITH THEIR INSTRUMENT CLUSTERS. *TR

NHTSA ODI #10650916

60,000 miles · Jun 5, 2014
Electrical System

TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. THE CONTACT STATED THAT THE SPEEDOMETER, FUEL GUAGE, ODOMETER, PRESSURE AND THE HIGH/ LOW BEAM INDICATORS FAILED TO DISPLAY. THE CONTACT MENTIONED THAT THE INSTRUMENT PANEL FAILED INTERMITTENTLY. THE VEHICLE WAS TAKEN TO A DEALER WHERE THE FAILURE WAS UNABLE TO BE DUPLICATED. THE …

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TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. THE CONTACT STATED THAT THE SPEEDOMETER, FUEL GUAGE, ODOMETER, PRESSURE AND THE HIGH/ LOW BEAM INDICATORS FAILED TO DISPLAY. THE CONTACT MENTIONED THAT THE INSTRUMENT PANEL FAILED INTERMITTENTLY. THE VEHICLE WAS TAKEN TO A DEALER WHERE THE FAILURE WAS UNABLE TO BE DUPLICATED. THE MANUFACTURER WAS NOT MADE AWARE OF THE PROBLEM. THE APPROXIMATE FAILURE MILEAGE WAS 60,000. UPDATED 08/18/14*LJ UPDATED 09/5/2014 *JS

NHTSA ODI #10596470

80,000 miles · Mar 31, 2014
Electrical System

CHEVROLET SENT ME A NOTICE OF GUAGE FAILURE IN 2007 , AND SAID THEY WOULD REPLACE THEM IF THEY WERE NOT WORKING AS LONG AS THE MILAGE WAS UNDER 80000. THE PROBLEM WAS WHEN THEY SENT ME THE NOTICE MY GUAGES WERE WORKING, THEY CONTINUED TO WORK UNTIL AFTER I HAD 82000 THEN THEY STOPPED WORKING. I CALLED THE DEALER AND TOLD THEM AN…

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CHEVROLET SENT ME A NOTICE OF GUAGE FAILURE IN 2007 , AND SAID THEY WOULD REPLACE THEM IF THEY WERE NOT WORKING AS LONG AS THE MILAGE WAS UNDER 80000. THE PROBLEM WAS WHEN THEY SENT ME THE NOTICE MY GUAGES WERE WORKING, THEY CONTINUED TO WORK UNTIL AFTER I HAD 82000 THEN THEY STOPPED WORKING. I CALLED THE DEALER AND TOLD THEM AND THEY SAID I WAS OVER THE MILES REQ. I UNDERSTAND THERE WERE A LOT OF TRUCKS THAT HAD THE SAME PROBLEM. *TR

NHTSA ODI #10575940

141,000 miles · Jun 19, 2013
Electrical System

TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE FUEL GAUGE, TACHOMETER AND THE BATTERY CHARGE INDICATOR FAILED. ALSO, THE SPEEDOMETER WOULD ONLY OPERATE SPORADICALLY. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VEHICLE HAD NOT BEEN REPAIRED. THE FAILURE AND CURR…

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TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE FUEL GAUGE, TACHOMETER AND THE BATTERY CHARGE INDICATOR FAILED. ALSO, THE SPEEDOMETER WOULD ONLY OPERATE SPORADICALLY. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VEHICLE HAD NOT BEEN REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS 141,000.

NHTSA ODI #10520628

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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