One problem related to brake disc has been reported for the 2000 GMC Jimmy. The most recently reported issues are listed below.
Consumer was going 30mph on a dirt road and suddenly applied brakes to keep from hitting an animal. Vehicle spun around, and wheels locked up. Consumer went to 1 dealer, who said there was no problem with rear brakes. Consumer was pulling into a dirt driveway and noticed left rear wheel had locked up. Wheel left tracts in dirt. Consumer decided to get a 2nd opinon on problem. After plugging the vehicle, it showed there was a problem with abs system. Dealer explained how this was first year that vehicles have the integrated abs, and were having alot of problems with them. Also, rear rotors were frozen and calipers needed to be replaced. Consumer states there has been 7 brake repairs, consumer is still experiencing abs problems. Center link and idler arm wore and were replaced, consumer is still experiencing steering problems.