NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes, Hydraulic complaints
8 reportsClear category filter64,200 miles · Nov 28, 2011
Service Brakes, Hydraulic
THE SUBJECT VEHICLE HAD RECENTLY BEEN PARKED AFTER TOWING A 29 FOOT LONG TRAVEL TRAILER. IT HAD SAT FOR APPROXIMATELY TWO WEEKS SINCE WE LAST USED IT. DURING THE 2011 30 OCTOBER SNOW STORM IN PA, I WENT TO PICK IT UP TO USE IT. I STARTED DOWN THE DRIVEWAY AND WENT TO APPLY THE BRAKES AND THE BRAKE PEDAL TRAVELED TO THE FLOOR.…
Read full complaint
THE SUBJECT VEHICLE HAD RECENTLY BEEN PARKED AFTER TOWING A 29 FOOT LONG TRAVEL TRAILER. IT HAD SAT FOR APPROXIMATELY TWO WEEKS SINCE WE LAST USED IT. DURING THE 2011 30 OCTOBER SNOW STORM IN PA, I WENT TO PICK IT UP TO USE IT. I STARTED DOWN THE DRIVEWAY AND WENT TO APPLY THE BRAKES AND THE BRAKE PEDAL TRAVELED TO THE FLOOR. ALL OF THE ANTILOCK AND BRAKE WARNING LIGHTS APPEARED ON THE DASH. I WAS ABLE TO STOP THE VEHICLE AND BACK IT BACK THE DRIVEWAY AND PARK IT. WE LATER CALLED AAA AND HAD IT TOWED TO A LOCAL CHEVY DEALER. THEY DIAGNOSED THE PROBLEM AND LET US KNOW THAT THEY HAD FOUND A BRAKE LINE THAT BURST DUE TO CORROSION. THIS BRAKE LINE IS ALMOST DIRECTLY UNDER THE POWER BRAKE BOOSTER ASSEMBLY AND IS SOMEWHAT HIDDEN FROM VIEW. IT LIES ATOP THE FRAME IN THIS AREA AND ACCORDING TO THE DEALER HAD CORRODED. ACCORDING TO THE DEALER THEY HAD TO FABRICATE A REPLACEMENT BRAKE LINE AND WERE ABLE TO REPLACE IT. THEY FURTHER INDICATED THEY LOOKED AT THE OTHER BRAKE LINES AND DID NOT SEE ANY FURTHER INDICATION OF CORROSION. I HAVE DRIVEN THE GMC FOR ABOUT TEN MILES SINCE THE REPAIR AND THE BRAKES APPEAR TO BE BACK TO NORMAL. LET ME ADD THIS, I HAVE OWNED 15 DIFFERENT VEHICLES IN MY LIFE AND NOT ONE HAS HAD TO HAVE A STEEL BRAKE LINE REPLACED. THIS IS THE FIRST. JUST LIKE THE OTHER GM OWNERS, WHEN THESE LINES FAIL THE BRAKING ABILITY TO STOP THIS TWO TON VEHICLE IS ALMOST NON-EXISTENT I AM VERY THANKFUL THIS LINE DID NOT FAIL WHILE TOWING THE 29 FOOT TRAVEL TRAILER. *KB
NHTSA ODI #10437609
48,448 miles · Apr 8, 2008
Service Brakes, HydraulicSteering
TL*THE CONTACT OWNS A 2004 GMC YUKON. THE CONTACT NOTICED A LEAK UNDER THE HOOD OF HIS VEHICLE. THE MANUFACTURER ADVISED HIM TO TAKE THE VEHICLE TO A DEALER AND THEY STATED THAT THE HYDRO BOOST FAILED. THE CONTACT WOULD HAVE TO PAY $861 TO REPAIR THE VEHICLE. THE MECHANIC INFORMED HIM THAT HE COULD HAVE RUN OUT OF POWER STEE…
Read full complaint
TL*THE CONTACT OWNS A 2004 GMC YUKON. THE CONTACT NOTICED A LEAK UNDER THE HOOD OF HIS VEHICLE. THE MANUFACTURER ADVISED HIM TO TAKE THE VEHICLE TO A DEALER AND THEY STATED THAT THE HYDRO BOOST FAILED. THE CONTACT WOULD HAVE TO PAY $861 TO REPAIR THE VEHICLE. THE MECHANIC INFORMED HIM THAT HE COULD HAVE RUN OUT OF POWER STEERING AND BRAKE FLUID, AND THE SEAL FAILED AND WAS LEAKING. THE FAILURE COULD HAVE CAUSED A CRASH DUE TO THE LOSS OF THE FLUIDS IN THE VEHICLE AND THE INABILITY TO BRAKE. THE BRAKES AND THE STEERING ARE ONE UNIT. A GMC REPRESENTATIVE STATED THAT HE WOULD CALL THE CONTACT IN 24 HOURS TO DISCUSS WHETHER OR NOT THEY WILL PAY FOR THE PARTS OR A PORTION OF THE REPAIRS. THE CURRENT MILEAGE WAS 48,498 AND FAILURE MILEAGE WAS 48,448.
NHTSA ODI #10224008
1,500 miles · Apr 6, 2007
Service Brakes, Hydraulic
BRAKE PEDAL EFFORT IS EXCESSIVE, RESULTING IN SEVERAL NEAR MISSES DUE TO INABILITY TO STOP RAPIDLY. HAVE NOTIFIED DEALER(S) SEVERAL TIMES, AND THEY HAVE STATED THAT BRAKES WERE OKAY. I PERSONALLY FEEL THAT BRAKE PADS AND/OR ROTORS WERE TOO SMALL FOR WEIGHT OF THE TRUCK.*AK
NHTSA ODI #10187175
70,000 miles · Mar 22, 2007
Service Brakes, HydraulicCrashInjury
TL*THE CONTACT OWNS A 2004 GMC YUKON. WHILE DRIVING AT 25 MPH THE CONTACT ENGAGED THE BRAKES AND THE VEHICLE WOULD NOT STOP AND CAUSED IT TO CRASH INTO THE REAR OF ANOTHER VEHICLE. THE FAILURE MILEAGE WAS 70,000. BETWEEN THE TWO VEHICLES, FOUR PEOPLE SUSTAINED MINOR INJURIES. THIS WAS THE SECOND TIME THE BRAKES FAILED.…
Read full complaint
TL*THE CONTACT OWNS A 2004 GMC YUKON. WHILE DRIVING AT 25 MPH THE CONTACT ENGAGED THE BRAKES AND THE VEHICLE WOULD NOT STOP AND CAUSED IT TO CRASH INTO THE REAR OF ANOTHER VEHICLE. THE FAILURE MILEAGE WAS 70,000. BETWEEN THE TWO VEHICLES, FOUR PEOPLE SUSTAINED MINOR INJURIES. THIS WAS THE SECOND TIME THE BRAKES FAILED. THE VEHICLE WAS NOT DRIVABLE AND WILL NOT BE REPAIRED. THE CURRENT AND FAILURE MILEAGE WERE 70,000. *AK
NHTSA ODI #10185908
31,000 miles · Oct 17, 2006
Service Brakes, Hydraulic
DT*: THE CONTACT STATED WHILE GETTING AN OIL CHANGE, IT WAS NOTICED THE BRAKE FLUID WAS LOW. THE DEALER DETERMINED THE REAR ROTORS AND PADS NEEDED TO BE REPLACED. UPDATED 12/1/2006 - THE REAR BRAKE WERE WORN, PITTED, AND RUSTED. *NM
NHTSA ODI #10171084
3,150 miles · Jun 11, 2004
Service Brakes, Hydraulic
WHILE DRIVING AT ANY SPEED, THE BRAKE PEDAL HAS TO BE PUSHED VERY HARD TO GET DECELERATION TO OCCUR. WHEN I HAD TO STOP QUICKLY AFTER GOING 65 MPH I ALMOST HIT THE ARK HIGHWAY AND TRANSPORTATION DEPARTMENT DUE TO THE LACK OF CONTROL OF STOPPING. *AK
NHTSA ODI #10075212
1,000 miles · May 26, 2004
Service Brakes, Hydraulic
THE CONSUMER WOULD HAVE TO DEPRESS THE BRAKE PEDAL HARD TO THE FLOOR FOR VEHICLE DECELERATION. THIS WOULD CAUSE EXTENDED STOPPING DISTANCE. THE DEALERSHIP WAS NOTIFIED, BUT DID NOT RESOLVE THE PROBLEM. THE CAUSE WAS NOT DETERMINED. PLEASE PROVIDE ANY ADDITIONAL INFORMATION. *NM
NHTSA ODI #10074297
Mileage unknown · Apr 19, 2004
Air BagsService Brakes, HydraulicCrashInjury
WHILE DRIVING CONSUMER APPLIED THE BRAKES AND WITHOUT WARNING CONSUMER'S VEHICLE COLLIDED WITH THE VEHICLE IN FRONT. UPON IMPACT, AIR BAGS DID NOT DEPLOY. DRIVER SUSTAINED MINOR INJURIES AND WAS TRANSPORTED TO THE HOSPITAL FOR EXAMINATION. VEHICLE WAS TOWED TO THE DEALER FOR INSPECTION, AND DEALER WAS UNABLE TO DUPLICAT…
Read full complaint
WHILE DRIVING CONSUMER APPLIED THE BRAKES AND WITHOUT WARNING CONSUMER'S VEHICLE COLLIDED WITH THE VEHICLE IN FRONT. UPON IMPACT, AIR BAGS DID NOT DEPLOY. DRIVER SUSTAINED MINOR INJURIES AND WAS TRANSPORTED TO THE HOSPITAL FOR EXAMINATION. VEHICLE WAS TOWED TO THE DEALER FOR INSPECTION, AND DEALER WAS UNABLE TO DUPLICATE OR RESOLVE THE PROBLEM. *AK
NHTSA ODI #10067417
Official recalls
2Apr 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.
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 ↗
Illustration