Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
1570–25K
12025–50K
8450–75K
7275–100K
59100–150K
27150K+
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
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
58,000 miles · Mar 26, 2014
Service Brakes
BRAKE LINE BROKE DUE TO EXCESSIVE RUSTING OF LINE. INTERNET RESEARCH SHOWS MANY MANY OWNERS HAVING SAME PROBLEM. *TR
NHTSA ODI #10574949
108,000 miles · Mar 16, 2014
Service Brakes
WHILE DRIVING MY 2004 CHEVROLET Z71 CREWCAB SILVERADO THE BRAKE PEDAL WENT ALL THE WAY TO THE FLOOR WITH NO WARNING SIGN SUCH AS SOFT PEDAL OR WARNING LIGHT. I AVOIDED REAR ENDING THE CAR IN FRONT OF ME BECAUSE I WAS GOING SLOW ENOUGH IN TRAFFIC TO USE MY EMERGENCY BRAKE. UPON INSPECTION IF FOUND THE BRAKE RESERVOIR BELOW MINIMU…
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WHILE DRIVING MY 2004 CHEVROLET Z71 CREWCAB SILVERADO THE BRAKE PEDAL WENT ALL THE WAY TO THE FLOOR WITH NO WARNING SIGN SUCH AS SOFT PEDAL OR WARNING LIGHT. I AVOIDED REAR ENDING THE CAR IN FRONT OF ME BECAUSE I WAS GOING SLOW ENOUGH IN TRAFFIC TO USE MY EMERGENCY BRAKE. UPON INSPECTION IF FOUND THE BRAKE RESERVOIR BELOW MINIMUM AND NO VISIBLE LEAKS IN MY GARAGE SO I FILLED WITH DOT3 FLUID PER OWNERS MANUAL. UPON DEPRESSING THE BRAKE PEDAL SEEKING A FIRM PEDAL THE REAR HARD BRAKE LINE BURST. FURTHER EXAMINATION REVEALED ALL BRAKE LINES WERE RUSTED AND IN NEED OF REPLACEMENT, NOT JUST THE BURST LINE. MY TRUCK IS NOT A DAILY DRIVER AND SELDOM DRIVEN ON SALTED OR CHEMICAL TREATED ROADS. WHEN IT IS I ALWAYS TAKE IS TO MY LOCAL CAR WASH THAT HAS AN UNDERCARRIAGE WASH. I HAVE NOTICED MULTIPLE COMPLAINTS ON BRAKE LINES FOR THIS VEHICLE WITH NO RECALL. THIS IS THE FIRST TIME I HAVE EVER HEARD OF BRAKE LINES RUSTING TO FAILURE ON A VEHICLE THAT IS UNDER 20 YEARS OLD. PLEASE INSIST CHEVROLET DO A RECALL BEFORE SOMEONE GETS HURT AND THOSE OF US THAT OWN THIS VEHICLE CAN BE REIMBURSED, RETROACTIVELY IF NECESSARY. THANK YOU. *TR
NHTSA ODI #10572652
197,000 miles · Mar 4, 2014
Service Brakes
MY WIFE WAS TRANSPORTING ME TO MY FIRST CHECK UP AFTER MAJOR SHOULDER SURGERY, WHEN THE BRAKES FAILED. UPON A MECHANICAL INSPECTION, IT HAS BEEN DETERMINED THAT THE BRAKE LINE RUSTED TOTALLY THROUGH. WE WERE VERY LUCKY SHE WAS ABLE TO GET TRUCK STOPPED WITH NO INJURY TO US OR ANYONE ELSE. NOT A GOOD SITUATION WITH MY S…
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MY WIFE WAS TRANSPORTING ME TO MY FIRST CHECK UP AFTER MAJOR SHOULDER SURGERY, WHEN THE BRAKES FAILED. UPON A MECHANICAL INSPECTION, IT HAS BEEN DETERMINED THAT THE BRAKE LINE RUSTED TOTALLY THROUGH. WE WERE VERY LUCKY SHE WAS ABLE TO GET TRUCK STOPPED WITH NO INJURY TO US OR ANYONE ELSE. NOT A GOOD SITUATION WITH MY SHOULDER TOTALLY IMMOBILIZED. *TR
NHTSA ODI #10567005
162,125 miles · Feb 5, 2014
Service Brakes
DRIVING INTO WORK THIS MORNING I TRIED TO STOP TO AND THE BRAKES WHEN TO THE FLOOR. I LOOKED UNDERNEATH AND THERE WAS BRAKE FLUID LEAKING FROM MY BRAKE LINES NEAR THE DRIVERS DOOR ON TOP OF THE FRAME RAIL. *TR
NHTSA ODI #10563121
40,322 miles · Feb 3, 2014
Service BrakesStructure
ALL MY LINES UNDER TRUCK RUSTED OUT BRAKE LINES SHIFT LINKAGE TRANSMISSION LINES. BRAKES WERE THE WORST LINES POPPED FROM RUST.I KEEP THIS TRUCK IN A GARAGE NOT USED COMMERCIALLY. I'M A HOSPICE NURSE AND NEED TO GET WHERE I'M GOING. I KEEP THIS TRUCK MINT DETAILED TWICE A YEAR PROFESSIONALLY MAINTAINED EVERY 3000 MILES.[XXX] …
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ALL MY LINES UNDER TRUCK RUSTED OUT BRAKE LINES SHIFT LINKAGE TRANSMISSION LINES. BRAKES WERE THE WORST LINES POPPED FROM RUST.I KEEP THIS TRUCK IN A GARAGE NOT USED COMMERCIALLY. I'M A HOSPICE NURSE AND NEED TO GET WHERE I'M GOING. I KEEP THIS TRUCK MINT DETAILED TWICE A YEAR PROFESSIONALLY MAINTAINED EVERY 3000 MILES.[XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
NHTSA ODI #10562613
140,000 miles · Dec 20, 2013
Service BrakesCrash
1ST INCIDENT NOV. 2013 MY WIFE WAS DRIVING WITH THE KIDS AND WAS COMING TO A STOP AT A LIGHT AND HER BRAKES WENT ALL THE WAY TO THE FLOOR AND HAD TO SWERVE INTO SHOPPING PLAZA ENTRANCE TO AVOID A ACCIDENT. TOOK IT TO THE SHOP TO HAVE BRAKE LINE FIXED. 2ND INCIDENT WAS NOV. 2013 WHILE BLEEDING BRAKES AT THE SHOP ANOTHER BREAK LIN…
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1ST INCIDENT NOV. 2013 MY WIFE WAS DRIVING WITH THE KIDS AND WAS COMING TO A STOP AT A LIGHT AND HER BRAKES WENT ALL THE WAY TO THE FLOOR AND HAD TO SWERVE INTO SHOPPING PLAZA ENTRANCE TO AVOID A ACCIDENT. TOOK IT TO THE SHOP TO HAVE BRAKE LINE FIXED. 2ND INCIDENT WAS NOV. 2013 WHILE BLEEDING BRAKES AT THE SHOP ANOTHER BREAK LINE BROKE IN THE REAR SO I HAD TO HAVE THE SHOP FIX THAT ALSO. DEC. 2013 WHILE MY WIFE WAS DRIVING TO SUPERMARKET, WHILE DRIVING IN TRAFFIC SOMEONE CUT IN FRONT OF HER AND WHICH CAUSED HER TO HIT THE BRAKES & ANOTHER BRAKE LINE BLEW WHICH WAS ACCIDENT INVOLVED. *TR
NHTSA ODI #10556862
157,800 miles · Nov 30, 2013
Service Brakes
STEPPED ON BRAKE AND PEDDLE WENT TO THE FLOOR. WARNING CHIME AND BRAKE LIGHT CAME ON SIMULTANEOUSLY. PULLED INTO CONVENIENCE STORE AND DISCOVERED BRAKE FLUID DRIPPING OUT OF BRAKE LINE ADJACENT TO DRIVERS SIDE FRAME RAIL. LOCATION WAS AFT OF BEND RADIUS WHERE THE BRAKE LINES TURNS TO GO UP TO THE MASTER CYLINDER. DROVE VEHICLE A…
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STEPPED ON BRAKE AND PEDDLE WENT TO THE FLOOR. WARNING CHIME AND BRAKE LIGHT CAME ON SIMULTANEOUSLY. PULLED INTO CONVENIENCE STORE AND DISCOVERED BRAKE FLUID DRIPPING OUT OF BRAKE LINE ADJACENT TO DRIVERS SIDE FRAME RAIL. LOCATION WAS AFT OF BEND RADIUS WHERE THE BRAKE LINES TURNS TO GO UP TO THE MASTER CYLINDER. DROVE VEHICLE AT VERY LOW SPEED ONE MILE TO HOME, PUMPING THE BRAKES TO GET SOME PEDDLE PRESSURE. INSPECTED BRAKE LINE AND FOUND IT TO BE VERY RUSTED. VEHICLE IS IN OTHERWISE EXCELLENT CONDITION FOR ITS AGE. *TR
NHTSA ODI #10554208
120,000 miles · Nov 21, 2013
Power Train
TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. THE CONTACT STATED THAT TRANSMISSION FLUID WAS LEAKING FROM THE HYDRO BOOST WITHOUT WARNING. THE VEHICLE WAS TAKEN TO A DEALER WHERE THE TECHNICIAN STATED THAT THE HYDRO BOOST WOULD NEED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEA…
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TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. THE CONTACT STATED THAT TRANSMISSION FLUID WAS LEAKING FROM THE HYDRO BOOST WITHOUT WARNING. THE VEHICLE WAS TAKEN TO A DEALER WHERE THE TECHNICIAN STATED THAT THE HYDRO BOOST WOULD NEED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS 120,000.
NHTSA ODI #10553185
34,000 miles · Nov 19, 2013
Vehicle Speed Control
TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO. THE CONTACT STATED THAT WHILE DRIVING 55 MPH, THE SPEEDOMETER FAILED. THE VEHICLE WAS NOT REPAIRED. THE CONTACT CALLED THE MANUFACTURER AND WAS INFORMED THAT THE VEHICLE WAS NOT RECALLED. THE FAILURE MILEAGE WAS 34,000.
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.
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.
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.
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.
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.
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.
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.
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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