Nine problems related to service brakes have been reported for the 2004 GMC Sierra 2500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 GMC Sierra 2500 based on all problems reported for the 2004 Sierra 2500.
Brakes lines failed under truck do to rusted out lines.
Emergency brakes don't engage.
During cold mornings (wisconsin) I start my truck and I have no power steering and soft brakes. It is my understanding that the power steering runs the brake boost. Also, it is my understanding that there is a service bulletin that says that the power steering fluid should be replaced with low/cold temp fluid. My concern is what happens if I lose power steering and brakes while I am driving.
The contact owns a 2004 GMC 2500. The contact stated that the emergency brake was inoperable. The contact mentioned that the parking brake was depressed and an abnormal noise emitted from the under carriage of the vehicle. The contact believed that the parking brake cable was fractured. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 197,000.
All the fluid lines corroded to the point where the vehicle was dangerous to drive with only 35000 original miles on it.
Got in vehicle, started it,put in gear,applied brake and pedal depressed farther than usual, hit again they went almost to floor. Got out and saw brake fluid on frame where line had rusted in through. Upon inspection all lines are terribly rusted and will need replaced.
The contact owns a 2004 GMC Sierra 2500 hd. The contact stated that while driving 40 mph the vehicle began to shake violently. The contact mentioned that the vehicle was merged to the side of the road and after a few minute restarted the vehicle but the front wheel was locked and smoke was emitting from the hubcaps. After a considerable amount of time the wheels unlocked and the vehicle was driven to a dealer for diagnosis. He was informed that the seal in the boost had leaked and contaminated brake fluid and locked up the system. The vehicle was repaired. The failure and current mileage was 140,894.
My truck is a work truck driven by an employee, I have just recently become aware of a condition regarding the instrument cluster, wherein the whole panel does not work, I was advised by the employee that this happened quite some time ago, but was never made aware. I contacted GMC but apparently, because this is considered a special policy recall (only if someone complains - and within a specified time period 7 yrs or 80,000 miles) they will not repair this defect. I never received a notice, nor was I aware of the problem within that time period. I was further informed by my worker that at the time the panel went out, the fan for the heater/air condition unit appeared to smoke and now it does not work. Here again, I have not received any recall notices for this defect either. Finally, in my attempts to get the cluster repaired, I have been informed that there is a recall on the hydro boost accumulator. . . I have not once received a recall notice on this vehicle and I purchased this vehicle new. My vehicle has 101,000 miles on it. You would think that a vehicle of this nature would last longer than 100,000. But apparently not. . . Also, when these is such a major recall out on a vehicle you would think that GMC would contact you and advise you of this problem. .
At slow speed as I'm coming to a stop I'll feel the abs brakes kick in and the pedal will go down some more and steering wheel kick to the left and the truck will move a little farther instead of stopping.