GMC Jimmy owners have reported 9 problems related to brake hoses, lines/piping, and fittings (under the service brakes category).
My wife started the car and the red brakes warning light was on. She pumped the brake pedal and it went to the floor. She turned the car off and returned to the house and cancelled her scheduled appointment. Later, after I arrived home I inspected the brake lines and found evidence of leaking above the left rear wheel. I jacked up the car, removed the left rear wheel and a rubber shield between the frame rail and body. More evidence of a leak was present. I started the car, pumped the brakes twice, turned off the car and reinspected the area. The metal brake line that runs along the top of the frame rail had a leak where it 90s toward the center of the axle.
See all problems of the 2000 GMC Jimmy.
The rear brake line keeps giving out even after replacing it and, there is loss of the rear brakes. There has to be some kind of fix that a GMC dealer can provide to resolve this issue.
See all problems of the 1999 GMC Jimmy.
At 94,445 miles: noticed a small leakage on garage floor, forward of left rear tire--within 10 miles noted significantly reduced braking capability. Taken to repair facility the following morning. . . The steel brake lines on driver's side were found corroded and cracked which caused brake fluid loss- ironically as the service technician was pulling the vehicle into the service bay--there was a total loss of rear brakes-- only then--in the bay, did the "brake" service warning light came on! (good reason to call them ' idiot' lights).
Upon inspection of 2000 GMC Jimmy 4dr / 4wd brake line drivers side over frame next to fuel tank held down by a clip leading to rear brakes ruptured due to corrosion around the clip area that holds the line to frame causing total loss rear brakes and proper braking when brake pedal went to the floor while returning home to park vehicle at our residence,. . Luckily at time of incident we were on our own rural property in driveway which is (approximately 2/10 mile long) and not the busy main highway which was traveled at 55 mph. The terrain was used in our driveway to bring the vehicle to a safe stop. Thankfully no injury's to occupants (including a 3 year old child) or damage to vehicle occurred with this incident.
Brake line failed and now noticed all brake lines are rusted about 2 feet from the abs where they meet at to route down to the frame rails.
1999 and 2000 GMC Jimmy's. Consumer states left steel brake line was corroded/cracked which caused loss of brake fluid in the 2000 and numerous gas lines leaking, corrosion on the 1999 GMC Jimmy.
Living near a salt mine ohio uses salt like crazy I'm fortunate that I do all the work myself rotten brake lines fuel lines that's what happens in the snow belt rot my Jimmy is mechanically sound with 190000 miles drive it almost 200 miles a day to and from work unfortunately it will rot to pieces before it dies and I don't think I should have to accept this need to find other ways to get ride of ice on roads in ohio or different alloys to make lines with. A lot of mechanics in the south won't or don't know how to work on corroded parts or some even charge a higher rate.
While going downhill and applying the brakes, the pedal went to the floor and there was no braking ability. Consumer used emergency brakes and went into a ditch to avoid a crash. Problem believed to be caused by part of the brake hose line missing because it hit the exhaust manifold and melted.
See all problems of the 1998 GMC Jimmy.
Brake pedal went to floor, pumped brakes, returned to normal. Further down road, pedal again went to floor, vehicle spun around, could have caused crash, according to dealer, water got into brake line; also all wheel driveshaft locked, causing front tires to lock up. Consumer states tires locked up about 4 or 5 times which caused vehicle to veer from lane to lane.
See all problems of the 1996 GMC Jimmy.
|Problem Category||Number of Problems|
|Brake Electric Antilock problems||
|Brake Disc Rotor problems||
|Abs Brake Fail problems||
|Brake Disc Pads problems||
|Brake Master Cylinder problems||
|Brake Foundation Components problems||
|Brake Abs Warning Light problems||
|Brake Disc problems||
|Brakes Failed problems||
|Service Brakes problems||