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NHTSA vehicle safety data

2004 GMC Sierra Recalls, Ratings & Complaints

The 2004 GMC Sierra has 10 NHTSA recall campaigns and 188 owner complaints on file as of November 3, 2026. Recall repairs are usually free at an authorized GMC dealer.

NHTSA recall and complaint data for the 2004 GMC Sierra, plus NCAP crash-test ratings. Recall data is refreshed daily from NHTSA.

Pre-purchase inspection checklist → Reliability & 5-year cost forecast →

2004 GMC Sierra owner complaints

Owners have filed 188 complaints with NHTSA about the 2004 GMC Sierra, describing incidents dated October 15, 2003 to January 25, 2016.

Most-cited components

  • Service Brakes 72 complaints
  • Electrical System 39 complaints
  • Power Train 18 complaints
  • Steering 14 complaints
  • Engine 9 complaints
  • Structure 9 complaints

Of the 188 complaints on file, 11 report a crash and 5 a fire; across all 188 complaints, owners report 14 injuries (owner-reported, not verified by NHTSA).

Newest complaints

  • ODI #10824516 · Filed

    I HAVE A 2004 GMC SIERRA AND ALL OF A SUDDEN MY AIRBAG LIGHT AND ABS LIGHT CAME ON TOOK IT IN TO HAVE IT LOOKED AND THE AIRBAGS ARE NOT COMMUNICATING WITH THE SENSOR AND THEY WOULD HAVE TO GO MORE IN DEPTH ON THE ABS BUT TO GO MORE IN DEPTH THEY CHARGE $80.00 AN HOUR JUST TO BE ABLE TO FIGURE IT…

  • ODI #10818811 · Filed

    RUSTED OUT/ CORRODED BRAKE LINES BURST WHILE STOPPING FOR A DEER RUNNING OUT ON THE ROAD. WAS WARNED OF THIS PROBLEM UPON PURCHASE OF THE VEHICLE IN 2010 AND PERSONALLY COATED ALL BRAKE LINES B4 WINTER EVERY YEAR...NEVER SAW WORSE LINES! I OWN CLASSIC CARS THAT ARE TWICE AS OLD WITH SHINEY ORIGINAL…

  • ODI #10806362 · Filed

    RUSTED BRAKE LINE

Read all 188 complaints

Owner-reported

2004 GMC Sierra mileage at failure

151 of the 188 complaints on file for the 2004 GMC Sierra give the vehicle's mileage when the problem happened.

Mileage at failure by component, from owners' complaints to NHTSA
Service BrakesMedian 80,000 milesMiddle half 40,000–100,000 milesBased on 64 complaints

A component's median is its 50th percentile, and its middle half runs from its 25th to its 75th percentile.

Owners give the mileage themselves, often as a round number, and NHTSA doesn't check it. A complaint that names several components counts under each one, and mileages that can't be right, such as 999,999, or 50 miles on a five-year-old car, are left out.

These figures describe the complaints owners filed. They don't predict when a particular vehicle will have a problem, and vehicles that never had one aren't counted.

Mileage from NHTSA's complaints file of October 31, 2026. How these figures are worked out

FMVSS 108/REPLACEMENT HEADLAMPS/AMBER REFLECTOR

NHTSA #09E025000 · Exterior Lighting — Headlights · NHTSA notice

Reported May 11, 2009 · DOPE, INC.

Potentially affected: 42,540 vehicles

Owners notified July 28, 2009

Defect description

DOPE, INC. IS RECALLING 42,540 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THESE LAMPS DO NOT CONTAIN THE REQUIRED AMBER SIDE REFLECTORS.

Safety consequence

DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.

Manufacturer remedy

DOPE, INC. WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE SAFETY RECALL BEGAN ON JULY 28, 2009. OWNERS MAY CONTACT DOPE, INC. AT 1-626-272-1798.

Notes

THIS RECALL ONLY PERTAINS TO AFTERMARKET REPLACEMENT EQUIPMENT AND HAS NO RELATION TO ANY ORIGINAL EQUIPMENT INSTALLED ON VEHICLES PRODUCED BY THE VEHICLE MANUFACTURER.IN ORDER TO DETERMINE IF YOUR AFTERMARKET LAMP ASSEMBLY IS AFFECTED BY THIS NONCOMPLIANCE, PLEASE REVIEW THE LIST OF MODEL NUMBERS PROVIDED TO US BY DOPE, INC.THE LIST CAN BE FOUND UNDER "DOCUMENT SEARCH" LOCATED AT THE BOTTOM OF YOUR SCREEN. OWNERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO <A HREF=HTTP://WWW.SAFERCAR.GOV>HTTP://WWW.SAFERCAR.GOV</A> .

90 DEGREE 7-WAY RIGHT ANGLE ADAPTORS/TOW ASSEMBLIE

NHTSA #07E066000 · Equipment — Electrical · NHTSA notice

Reported August 28, 2007 · CEQUENT ELECTRICAL PRODUCTS

Potentially affected: 175 vehicles

Owners notified September 5, 2007

Defect description

CERTAIN CEQUENT 90 DEGREE 7-WAY RIGHT ANGLE ADAPTORS SOLD BY DISTRIBUTORS IN TOW PACKAGES FOR AFTERMARKET SALES TO TOW 5TH WHEEL RV TRAVEL TRAILERS. DUE TO INCORRECT WIRING OF THE HARNESS, THE TRAILER LIGHTS MAY NOT OPERATE PROPERLY.

Safety consequence

IF THE TRAILER LIGHTS ARE NOT WORKING PROPERLY, A VEHICLE CRASH CAN OCCUR.

Manufacturer remedy

ALL OF THE DEFECTIVE TOW PACKAGES ARE STILL AT THE DISTRIBUTOR LEVEL AND HAVE NOT BEEN SOLD TO ANY CONSUMERS.

Notes

THIS RECALL ONLY PERTAINS TO AFTERMARKET CEQUENT TOW PACKAGES AND HAS NO RELATION TO ANY ORIGINAL EQUIPMENT INSTALLED ON DAIMLERCHRYSLER, GMC, OR FORD VEHICLES.CUSTOMERS MAY CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY: 1-800-424-9153); OR GO TO HTTP://WWW.SAFERCAR.GOV.

FUEL RAIL DAMPER RETAINER CLIP/WORKHORSE

NHTSA #06V289000 · Engine and Engine Cooling · NHTSA notice

Reported August 3, 2006 · GENERAL MOTORS CORP.

Potentially affected: 38,439 vehicles

Manufacturer campaign 06080 · Owners notified August 31, 2006 · Vehicles built March 1, 2003 – August 31, 2004 (per NHTSA)

Defect description

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.

Safety 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.

Manufacturer 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.

Notes

GM RECALL NO. 06080.CUSTOMERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV.

SEAT BELT ROUTING

NHTSA #05V163000 · Seat Belts — Rear/Other · NHTSA notice

Reported April 22, 2005 · GENERAL MOTORS CORP.

Potentially affected: 1,359,824 vehicles

Manufacturer campaign 05037 · Owners notified July 21, 2005 · Vehicles built April 8, 2003 – August 4, 2004 (per NHTSA)

Defect description

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.

Safety 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.

Manufacturer 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.

Notes

GM RECALL NO. 05037.CUSTOMERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV.

PARKING BRAKE SYSTEM

NHTSA #05V161000 · Parking Brake · NHTSA notice

Reported April 22, 2005 · GENERAL MOTORS CORP.

Potentially affected: 90,242 vehicles

Manufacturer campaign 05042 · Owners notified July 29, 2005 · Vehicles built April 1, 2003 – July 31, 2004 (per NHTSA) · Recall influenced by NHTSA's Office of Defects Investigation

Defect description

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.

Safety consequence

IF THE PARKING BRAKE DOES NOT HOLD, UNINTENDED VEHICLE MOVEMENT COULD OCCUR, WHICH COULD RESULT IN A CRASH.

Manufacturer 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.

Notes

GM RECALL NO. 05042.CUSTOMERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV.

HYDRO-BOOST/HYDRAULIC BRAKE/BOSCH

NHTSA #05V043000 · Service Brakes, Hydraulic · NHTSA notice

Reported February 8, 2005 · GENERAL MOTORS CORP.

Potentially affected: 77,411 vehicles

Manufacturer campaign 05006 · Owners notified March 23, 2005 · Vehicles built February 1, 2004 – August 31, 2004 (per NHTSA)

Defect description

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.

Safety 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.

Manufacturer 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.

Notes

GM RECALL NO. 05006.CUSTOMERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV.

GM/FMVSS 225/SEATING POSITIONS

NHTSA #04V225000 · Seat Belts — Front — Anchorage · NHTSA notice

Reported May 11, 2004 · GENERAL MOTORS CORP.

Potentially affected: 736 vehicles

Manufacturer campaign 04038 · Owners notified September 9, 2004 · Vehicles built August 1, 2003 – March 31, 2004 (per NHTSA)

Defect description

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.

Safety 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.

Manufacturer 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.

Notes

GM RECALL NO. 04038.CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).

DURAKON/BEDLINER DETACHES FROM THE TRUCK

NHTSA #04E022000 · Equipment · NHTSA notice

Reported March 23, 2004 · DURAKON INDUSTRIES, INC.

Potentially affected: 8,000 vehicles

Owners notified March 31, 2004

Defect description

AFTERMARKET PICKUP TRUCK OVER-THE-RAIL BEDLINERS MANUFACTURED FOR INSTALLATION ON 1999-2004 CHEVROLET SILVERADO AND GMC SIERRA PICKUP TRUCKS. THE TOGGLE WING ASSEMBLY USED TO ATTACH THE BEDLINER TO THE TRUCK BED IS NOT ENGAGING FULLY IN THE STAKE POCKET OF THE PICKUP TRUCK.

Safety consequence

THE BEDLINER CAN BECOME DETACHED FROM THE PICKUP WHILE IT IS MOTION, POSSIBLY ENDANGERING FOLLOWING MOTORISTS OR PEDESTRIANS.

Manufacturer remedy

DURAKON WILL ISSUE A PRESS RELEASE IN ATTEMPT TO NOTIFY CUSTOMERS THAT COULD HAVE PURCHASED THE DEFECTIVE BEDLINER. IF YOU PURCHASED EITHER A DURAKON ALLSTAR OF PATRIOT OVERRAIL BEDLINER SINCE AUGUST 1, 2003, FOR 1999 TO 2004 CHEVROLET SILVERADO OR GMC SIERRA TRUCKS, OR PURCHASED ONE OF THESE PICKUP TRUCKS WITH EITHER BRAND BEDLINER ALREADY INSTALLED, YOU SHOULD RETURN TO AN AUTHORIZED DURAKON DEALER SO THAT THE BEDLINER CAN BE INSPECTED AND, IF NECESSARY, REPAIRED WITH A NEWLY DESIGNED TOGGLE WING FASTENING SYSTEM, OR IF REQUIRED, REPLACED WITH A NEW BEDLINER FREE OF CHARGE. PLEASE CALL THE DURAKON HOTLINE AT 1-800-933-4200 TO FIND THE NEAREST AUTHORIZED DURAKON DEALER.

Notes

THIS RECALL ONLY PERTAINS TO AFTERMARKET OVERRAIL BEDLINERS AND HAS NO RELATION TO ANY ORIGINAL EQUIPMENT INSTALLED ON CHEVROLET SILVERADO AND GMC SIERRA PICKUP TRUCKS BY GENERAL MOTORS.CUSTOMERS CAN CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).

GM/TAILGATE SUPPORT CABLE

NHTSA #04V129000 · Structure — Body — Tailgate — Hinge and Attachments · NHTSA notice

Reported March 17, 2004 · GENERAL MOTORS CORP.

Potentially affected: 3,662,211 vehicles

Manufacturer campaign 04007 · Owners notified September 18, 2004 · Vehicles built March 1, 2003 – November 30, 2003 (per NHTSA) · Recall influenced by NHTSA's Office of Defects Investigation

Defect description

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.

Safety 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.

Manufacturer 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.

Notes

GM RECALL NO. 04007.CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).

GM/FMVSS 135/BRAKE VALVE

NHTSA #04V045000 · Service Brakes, Hydraulic · NHTSA notice

Reported February 4, 2004 · GENERAL MOTORS CORP.

Potentially affected: 68,875 vehicles

Manufacturer campaign 04004 · Owners notified June 18, 2004 · Vehicles built May 1, 2003 – June 30, 2003 (per NHTSA)

Defect description

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.

Safety 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.

Manufacturer 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.

Notes

GM RECALL NO. 04004.CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).

Other GMC Sierra model years

Check your 2004 GMC Sierra VIN

Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your GMC Sierra at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.

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