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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
27,000 miles · Jul 5, 2005
Power Train

2004 CHEVY SILVERADO 2500 DIESEL, FOUR MONTHS OLD(4000MILES) REAR AXILE WENT OUT. SAID DEFAULT FROM THE MANUFACTOR. TOOK FOURTEEN DAYS TO GET NEW ONE.CHEVROLET BUILT NEW FROM ST.LOUIS AND SHIPPED IT TO BE PUT ON. THEY GAVE ME A LITTLE CAR TO DRIVE. 27000 MILES AND NOW REAR AXILE LEAKING. TOOK TO DEALER. THEY SAID NOTHING BUT NO…

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2004 CHEVY SILVERADO 2500 DIESEL, FOUR MONTHS OLD(4000MILES) REAR AXILE WENT OUT. SAID DEFAULT FROM THE MANUFACTOR. TOOK FOURTEEN DAYS TO GET NEW ONE.CHEVROLET BUILT NEW FROM ST.LOUIS AND SHIPPED IT TO BE PUT ON. THEY GAVE ME A LITTLE CAR TO DRIVE. 27000 MILES AND NOW REAR AXILE LEAKING. TOOK TO DEALER. THEY SAID NOTHING BUT NORMAL LEAKAGE COMING OUT. ( WHATS NORMAL LEAKAGE ON A AXILE? THEY ARE NOT SUPOSED TO LEAK ON THE BRAKES.) LOOKED LIKE IT WAS ON FIRE SMOKING SO BAD AND COULD SMELL AXILE GREASE. SEEN SOME ON TIRES. BUT THIS IS NORMAL LEAKAGE.WAS TOLD TO DRIVE IT TILL IT BRAKES DOWN.ALSO EVERTHING IN THE DASH STOPS WORKING THEN IT WILL JUST COME BACK ON.

NHTSA ODI #10127551

Mileage unknown · Jun 25, 2005
EquipmentPower TrainSteering

SINCE I'VE BOUGHT MY 2004 CHEVORLET SILVERADO. I'VE HAD THE OIL PUMP REPLACED. THEN I STATED TO HEAR NOISES IN MY ENGINE. I TOOK IT BACK TO HAVE THEN LOOK OVER THE LIFTERS AND VALVES AND POWER/STERRING, IT IS STILL MAKING A WINEDY NOISE. THEY SAID" THAT'S NORMAL. THEN I TOOK IT INTO A FRIENDS PLACE, "BRAKE MASTERS OF CAMARILLO. …

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SINCE I'VE BOUGHT MY 2004 CHEVORLET SILVERADO. I'VE HAD THE OIL PUMP REPLACED. THEN I STATED TO HEAR NOISES IN MY ENGINE. I TOOK IT BACK TO HAVE THEN LOOK OVER THE LIFTERS AND VALVES AND POWER/STERRING, IT IS STILL MAKING A WINEDY NOISE. THEY SAID" THAT'S NORMAL. THEN I TOOK IT INTO A FRIENDS PLACE, "BRAKE MASTERS OF CAMARILLO. THEY TOLD ME IT IS THE POWER STERRINNG PUMP. SO I TOOKIT BACK TO THE, AND I TOLD THEM I DIDN'T WANT IT BACK TIL IT WAS FIXED. THEY TOLD ME IT WOULD JUST SIT THERE AND THERE WAS NOTHING WRONG W/ IT. SO I TOOK IT AND NOW I'M GOING TO TAKE IT IN AGAIN FOR THE SAME WINEDY NOISE AND SEE WHAT THEY SAY NOW. I HAVE NOT BEEN SATISFIED W/ THIS TRUCK. THE TRANSMISSION HAS BEEN SLIPPING AND OTHER NOISES HAVE BEEN GETTING WORSE, AND THEY JUST DON'T WANT TO FIX IT. THEY JUST WANT TO BLOW YOU OFF AND TELL YOU THAT EVERYTHING IS NORMAL.

NHTSA ODI #10126561

Mileage unknown · Jun 20, 2005
Power Train

2500HD W/ALLISON TRANSMISSION. HAVE TAKEN TRUCK IN SEVERAL TIMES TO DEALER BECAUSE WHILE BACKING UP IN REVERSE THE TRANNY SURGES. DEALER KEEPS SAYING THAT THEY CAN'T DUPLICATE THE PROBLEM

NHTSA ODI #10125897

1,200 miles · Jun 17, 2005
Engine And Engine CoolingFuel System, Other

ABOUT 1 MONTH AFTER BUYING A NEW 2004 SILVERADO IT STARTED SURGING VILOENTLY WHEN COLD. IT IS INCONSISTANT, SOMETIMES LASTS FOR BLOCKS. I ALMOST GOT REAR ENDED LAST WEEK WHILE TRYIG TO CONTROL THE TRUCK. GM REFUSES TO DO ANYTHING, SAYING THERE IS NO DIAGNOSIS CODES SET AND THEY HAVE NEVER HEARD OF SILVERADO`S SURGING. THEY…

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ABOUT 1 MONTH AFTER BUYING A NEW 2004 SILVERADO IT STARTED SURGING VILOENTLY WHEN COLD. IT IS INCONSISTANT, SOMETIMES LASTS FOR BLOCKS. I ALMOST GOT REAR ENDED LAST WEEK WHILE TRYIG TO CONTROL THE TRUCK. GM REFUSES TO DO ANYTHING, SAYING THERE IS NO DIAGNOSIS CODES SET AND THEY HAVE NEVER HEARD OF SILVERADO`S SURGING. THEY CLASS IT AS A FEATURE AND SAY I NEED TO FEATHER THE CLUTCH. FEATHERING THE CLUTCH IN TRAFFIC IS A GOOD WAY TO GET KILLED. THIS HAS BEEN GOING ON ABOUT 4 MONTHS NOW. I BELIEVE THEY KNOW WHAT IS WRONG AND IT IS HAPPENING WITH MORE THEN JUST MY ONE TRUCK; BUT THEY DON'T WANT TO SPEND THE MONEY TO FIX IT.

NHTSA ODI #10125575

16,800 miles · Jun 14, 2005
Tires

(1) DRIVING VEHICLE ON INTERSTATE AT HIGHWAY SPEED, 65-70 MPH. (2) TIRE, INTERIOR SIDEWALL FAILURE, OF DRIVER SIDE REAR. (3) DEALER REPLACED WITH A NEW TIRE, N/C. (4) VEHICLE UNLOADED. TIRES 17,000 MLS WEAR.

NHTSA ODI #10125269

9,670 miles · Jun 11, 2005
Service Brakes, Hydraulic

1. I OBSERVERED ON 3 OCCASSIONS INTERMITTENT LOW SPEED BRAKING PROBLEMS. I TOOK THE VEHICLE TO THE DEALER ON 23MAY05 AND THEY FOUND NOTHING WRONG. 2. WHILE PARKED AND IDLING THE VEHICLE ON 11JUN05, THERE WAS A LOUD BANG NOISE FROM UNDER THE HOOD. A PART OF THE BRAKING SYTEM FROM UNDER THE HOOD LOOKS LIKE IT SEPERATED UNDER PRES…

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1. I OBSERVERED ON 3 OCCASSIONS INTERMITTENT LOW SPEED BRAKING PROBLEMS. I TOOK THE VEHICLE TO THE DEALER ON 23MAY05 AND THEY FOUND NOTHING WRONG. 2. WHILE PARKED AND IDLING THE VEHICLE ON 11JUN05, THERE WAS A LOUD BANG NOISE FROM UNDER THE HOOD. A PART OF THE BRAKING SYTEM FROM UNDER THE HOOD LOOKS LIKE IT SEPERATED UNDER PRESSURE FROM THE REST OF THE MASTER CYLINDER. THIS RESULTED IN LOSS OFF MOST BRAKE FLUID. 3. VEHICLE WAS TOWED TO SHOP, BUT REPAIRS WILL NOT COMMENCE TILL 13JUN05.

NHTSA ODI #10125019

15,275 miles · Jun 10, 2005
Service Brakes, Hydraulic

BRAKES FAILED WHILE APPROACHING INTERSECTION CAUSING VEHICLE TO COME TO STOP IN THE MIDDLE OF INTERSECTION. APPLIED BRAKES LIGHTLY WHILE APPROACHING THE INTERSECTION, AND WHEN APPLING BRAKES HARDER, TO COME TO COMPLETE STOP, THEY WENT TO THE FLOOR, CAUSING VEHICLE TO ROLL INTO INTERSECTION BEFORE STOPPING ALMOST BEING BROADSIDE…

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BRAKES FAILED WHILE APPROACHING INTERSECTION CAUSING VEHICLE TO COME TO STOP IN THE MIDDLE OF INTERSECTION. APPLIED BRAKES LIGHTLY WHILE APPROACHING THE INTERSECTION, AND WHEN APPLING BRAKES HARDER, TO COME TO COMPLETE STOP, THEY WENT TO THE FLOOR, CAUSING VEHICLE TO ROLL INTO INTERSECTION BEFORE STOPPING ALMOST BEING BROADSIDED. MY WIFE HAD THE SAME FAILURE ON TWO OTHER OCCASIONS. THE VEHICLE WAS TAKEN TO THE DEALER FOR THE BRAKES FEELING SPONGY ON TWO OTHER OCCASIONS AND WE WERE TOLD ,"THE BRAKES ARE WORKING NORMAL" AFTER THE NEAR ACCIDENT ON 6/7/05 IT WAS TAKEN TO THE DEALER AGAIN AND I WAS TOLD BY THE SERVICE MANAGER THAT THEY WOULD BLEED THE BRAKES AND THAT THEY WOULD CONTACT GM ABOUT THE PROBLEM . THE SERVICE MANAGER TOLD ME TO GET RID OF THE TRUCK AS THE BRAKES COULD NOT BE REPAIRED. I FILED A CLAIM WITH GM THAT EVENING AND THEY GOT BACK TO ME ON 6/10/05 SAYING THERE WAS NOTHING THEY WOULD DO TO FIX THE PROBLEM.

NHTSA ODI #10124933

18 miles · Jun 10, 2005
Power Train

MY 4 WHEEL DRIVE PICKUP HAS SHIFTED FROM 2 WHEEL DRIVE TO LOW 4 WHEEL DRIVE WITHOUT COMMAND. IT IS NOW IN THE SHOP FOR THE THIRD TIME FOR THE SAME PROBLEM. THIS COULD BE DEADLY AT HIGH SPEEDS. I AM AWAIR OF ONE TRUCK OF THE SAME MAKE AND MODEL THAT CRASHED INTO A DITCH WHEN THIS HAPPENED.

NHTSA ODI #10124926

14,900 miles · Jun 7, 2005
Service Brakes, Hydraulic

DT: THE TRUCK STOPS AND HAS NO POWER BRAKES OR STEERING CONTROL. WHEN IT COMES TO A FINAL STOP IT CANNOT BE RESTARTED. THE COMPUTER LIGHT COMES ON, STATING SERVICE BRAKE BOOSTER FAILED. ONCE CONSUMER WAITED ABOUT FIVE MINUTES BEFORE TRUCK RESTARTED.*AK

NHTSA ODI #10124503

Mileage unknown · Jun 7, 2005
Exterior Lighting

I HAVE SURVEYED GM TRUCKS/SUVS/VANS WHEN MEETING THEM IN THE INCOMING LANE. IT QUITE APPARENT THAT THEY HAVE A PROBLEM WITH THE DRLS. I HAVE CALUCLATED THAT 3% OF THEM HAVE A BURNED OUT LIGHT. START WATHING FOR THEM ON YOUR DAILY DRIVES AND YOU WILL SEE WHAT I MEAN.

NHTSA ODI #10124497

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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