NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes, Hydraulic complaints
9 reportsClear category filter57,937 miles · Oct 26, 2011
Service Brakes, Hydraulic
TL* THE CONTACT OWNS A 2004 GMC YUKON DENALI. THE CONTACT STATED THAT WHILE DRIVING 55 MPH, THE VEHICLE BRAKES FAILED AND WAS DEPRESSED TO THE FLOORBOARD. SHE ALSO STATED THAT SHE WAS ABLE TO STOP THE VEHICLE BY ENGAGING THE EMERGENCY BRAKE AND AFTER INSPECTING, SHE DISCOVERED A BRAKE FLUID LEAK. THE VEHICLE WAS TOWED TO A LOC…
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TL* THE CONTACT OWNS A 2004 GMC YUKON DENALI. THE CONTACT STATED THAT WHILE DRIVING 55 MPH, THE VEHICLE BRAKES FAILED AND WAS DEPRESSED TO THE FLOORBOARD. SHE ALSO STATED THAT SHE WAS ABLE TO STOP THE VEHICLE BY ENGAGING THE EMERGENCY BRAKE AND AFTER INSPECTING, SHE DISCOVERED A BRAKE FLUID LEAK. THE VEHICLE WAS TOWED TO A LOCAL MECHANIC WHO DIAGNOSED THAT ONE OF THE BRAKE LINES HAD FRACTURED DUE TO CORROSION AND NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE AND THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND THE CURRENT MILEAGE WAS 57,937.
NHTSA ODI #10432949
57,800 miles · Oct 2, 2011
Service Brakes, Hydraulic
BRAKE LINE ERODED AWAY ON A VERY WELL TAKEN CARE OF 2004 GMC YUKON DENALI. NEARLY COLLIDED WITH ANOTHER VEHICLE GOING OVER SPEED BUMP AND HAD ABSOLUTELY NO WARNING! MY PEDAL WENT TO THE FLOOR AND THE ONLY WAY II AVOIDED COLLISION WAS PUTTING THE TRUCK IN NEUTRAL AND STOMPING ON THE PARKING BREAK. FOR A VEHICLE THAT NEW COSTS OV…
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BRAKE LINE ERODED AWAY ON A VERY WELL TAKEN CARE OF 2004 GMC YUKON DENALI. NEARLY COLLIDED WITH ANOTHER VEHICLE GOING OVER SPEED BUMP AND HAD ABSOLUTELY NO WARNING! MY PEDAL WENT TO THE FLOOR AND THE ONLY WAY II AVOIDED COLLISION WAS PUTTING THE TRUCK IN NEUTRAL AND STOMPING ON THE PARKING BREAK. FOR A VEHICLE THAT NEW COSTS OVER 50000 DOLLARS TO FAIL AT SUCH A LOW MILEAGE AND NOT EVEN CLOSE TO A DECADE OLD IS COMPLETELY UNACCEPTABLE. THIS VEHICLE RARELY SEEMS INCLEMENT WEATHER AND IS COVERED WITH A NEARLY 500 DOLLAR CALIFORNIA CAR COVER. *TR
NHTSA ODI #10428200
119,000 miles · Jun 9, 2011
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2004 GMC YUKON DENALI. THE CONTACT STATED WHILE DRIVING AT A SLOW SPEED AND TRYING TO MAKE A TURN WITH THE BRAKES APPLIED; THE STEERING WHEEL BECAME DIFFICULT TO MAKE A RIGHT TURN. THE CONTACT RECEIVED NHTSA CAMPAIGN ID NUMBER: 04V045000 (SERVICE BRAKES, HYDRAULIC) DEALING WITH THE HYDRO-BOOST MODULE, BUT …
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TL*THE CONTACT OWNS A 2004 GMC YUKON DENALI. THE CONTACT STATED WHILE DRIVING AT A SLOW SPEED AND TRYING TO MAKE A TURN WITH THE BRAKES APPLIED; THE STEERING WHEEL BECAME DIFFICULT TO MAKE A RIGHT TURN. THE CONTACT RECEIVED NHTSA CAMPAIGN ID NUMBER: 04V045000 (SERVICE BRAKES, HYDRAULIC) DEALING WITH THE HYDRO-BOOST MODULE, BUT THE DEALER AND MANUFACTURER REFUSED TO REPAIR THE VEHICLE. THE CURRENT MILEAGE WAS 119,000.
NHTSA ODI #10405721
98,080 miles · Jan 19, 2011
Service Brakes, HydraulicTraction Control System
THE VEHICLES TRACTION CONTROL SYSTEM ENGAGES WHEN PULLING OUT FROM A STOPPED POSITION CAUSING THE VEHICLE TO BE DISABLED FOR SEVERAL SECONDS. ALSO THE ABS BRAKE ACTIVATE ON DRY ROAD UNDER LIGHT BRAKING. BOTH CONDITIONS RESULT IN A VERY DANGEROUS SITUATION WHEN ATTEMPTING TO NEGOTIATE AN INTERSECTION. *TR
NHTSA ODI #10377880
144,000 miles · Nov 2, 2009
Electronic Stability Control (esc)Service Brakes, HydraulicTraction Control System
THE ABS TRACTION CONTROL ON MY 2004 YUKON DENALI ACTIVATES ON DRY ROADS AND NEARLY CAUSED A SERIOUS ACCIDENT. WHILE PULLING OUT ONTO THE ROAD, THE TRACTION CONTROL KICKED IN AND CUT POWER TO THE TRUCK. I COULDN'T ACCELERATE AND WAS ALMOST HIT BY ONCOMING TRAFFIC. *TR
NHTSA ODI #10290713
20,000 miles · Nov 12, 2008
Service Brakes, Hydraulic
2004 GMC YUKON DENALI - TRACTION CONTROL MESSAGE COMES ON AFTER A STOP WHEN YOU START TO GO AGAIN AND IT FEELS LIKE THE VEHICLE DOES NOT WANT TO GO. THE VEHICLE STARTED DOING THIS ABOUT 20K. WE HAVE TAKEN IT IN SEVERAL TIMES FOR THIS ISSUE BUT COULD NOT FIGURE OUT WHAT IT WAS DUE TO NO CODE IN THE COMPUTER. FINALLY AT 47K WE …
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2004 GMC YUKON DENALI - TRACTION CONTROL MESSAGE COMES ON AFTER A STOP WHEN YOU START TO GO AGAIN AND IT FEELS LIKE THE VEHICLE DOES NOT WANT TO GO. THE VEHICLE STARTED DOING THIS ABOUT 20K. WE HAVE TAKEN IT IN SEVERAL TIMES FOR THIS ISSUE BUT COULD NOT FIGURE OUT WHAT IT WAS DUE TO NO CODE IN THE COMPUTER. FINALLY AT 47K WE TOOK IT IN AGAIN AND MADE THE DEALERSHIP RIDE WITH US AND THE TRUCK DID THIS, THEY REPLACED A SENSOR BUT NOW WE ARE HAVE SEVERAL OTHER ISSUES THAT WE NEVER HAD BEFORE, THE ABS LIGHT IS COMING ON, SERVICE STABILITY LIGHT AND THE TRACTION CONTROL OFF LIGHT COME ON. I CAN'T BELIEVE AFTER ALL THIS TIME THEY CAN'T FIGURE IT OUT, IT IS GETTING VERY COSTLY HAVING THE TRUCK IN EVERY FEW WEEKS. *TR
NHTSA ODI #10248598
42,256 miles · Aug 18, 2006
Service Brakes, Hydraulic
DT*: THE CONTACT STATED A HUMMING SOUND WAS HEARD COMING FROM THE VEHICLE'S STEERING, WHICH GOT PROGRESSIVELY LOUDER UPON ACCELERATION, TURNING, AND BRAKING. THE VEHICLE WAS TAKEN TO A SERVICE DEALER, WHO DETERMINED THAT THE HYDROBOOST UNIT WAS FAULTY. THERE WAS A NHTSA RECALL # 04V045000, REGARDING THE HYDRAULIC SERVICE BRAKE…
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DT*: THE CONTACT STATED A HUMMING SOUND WAS HEARD COMING FROM THE VEHICLE'S STEERING, WHICH GOT PROGRESSIVELY LOUDER UPON ACCELERATION, TURNING, AND BRAKING. THE VEHICLE WAS TAKEN TO A SERVICE DEALER, WHO DETERMINED THAT THE HYDROBOOST UNIT WAS FAULTY. THERE WAS A NHTSA RECALL # 04V045000, REGARDING THE HYDRAULIC SERVICE BRAKES. THE VEHICLE WAS NOT INCLUDED IN THE RECALL DUE TO THE VIN.
NHTSA ODI #10165934
30,000 miles · Mar 13, 2006
Service Brakes, HydraulicCrash
DT*: THE CONTACT STATED WHILE ATTEMPTING TO APPLY BRAKE PRESSURE AT 65 MPH THE BRAKES FAILED RESULTING IN A CRASH. THIS OCCURRED ON A NORMAL ROAD DURING NORMAL BRAKING WITHOUT WARNING AND A POLICE REPORT WAS FILED. THE VEHICLE WAS TAKEN TO THE DEALERSHIP FOR INSPECTION. THEY WERE UNABLE TO DUPLICATE THE PROBLEM AND NO REPAIR…
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DT*: THE CONTACT STATED WHILE ATTEMPTING TO APPLY BRAKE PRESSURE AT 65 MPH THE BRAKES FAILED RESULTING IN A CRASH. THIS OCCURRED ON A NORMAL ROAD DURING NORMAL BRAKING WITHOUT WARNING AND A POLICE REPORT WAS FILED. THE VEHICLE WAS TAKEN TO THE DEALERSHIP FOR INSPECTION. THEY WERE UNABLE TO DUPLICATE THE PROBLEM AND NO REPAIRS WERE MADE.
NHTSA ODI #10152582
3,500 miles · Jul 22, 2005
Service Brakes, HydraulicCrash
DURING NORMAL DRIVING, BRAKE PEDAL WILL SOMETIMES GO TO THE FLOOR WHEN ATTEMPING TO STOP, AND VEHICLE WILL NOT SLOW DOWN AT ALL. AFTER SECOND ATTEMPT, BRAKES START WORKING AGAIN. NO ERRORS REPORTED BY VEHICLE COMPUTER. WE HAVE ALREADY HIT A MAILBOX TRYING TO AVOID A CRASH, AND ALMOST ROLLED OVER ANOTHER TIME DUE TO NOT BEING …
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DURING NORMAL DRIVING, BRAKE PEDAL WILL SOMETIMES GO TO THE FLOOR WHEN ATTEMPING TO STOP, AND VEHICLE WILL NOT SLOW DOWN AT ALL. AFTER SECOND ATTEMPT, BRAKES START WORKING AGAIN. NO ERRORS REPORTED BY VEHICLE COMPUTER. WE HAVE ALREADY HIT A MAILBOX TRYING TO AVOID A CRASH, AND ALMOST ROLLED OVER ANOTHER TIME DUE TO NOT BEING ABLE TO SLOW DOWN IN TIME. TWO GM DEALERS HAVE FOUND NO PROBLEMS, AND WE HAVE BEEN TOLD TO NOT BRING THE VEHICLE BACK TO THEM AS THEY SAY NOTHING IS WRONG WITH IT. PROBLEM HAPPENS APPROX. EVERY 5 WEEKS, NO CONSISTENCY OR EVENTS LEADING UP TO BRAKE LOSS.
NHTSA ODI #10129658