[RSGSRSRS]

I have had the same problem 2x. GM paid for it the second time -- new brake drums rusted in less than a year -- destroying the emergency brake, one caliper and the disc brake pads as well. The problem is the rear drum is made of a metal that rusts prematurely. The rust causes the emergency brakes to wear and malfunction. Since the disc brake rotor is built onto the inside edge of the drum, it also affects the disc brakes, calipers, etc. I had cracked disc brake pads because of this.

This defect also causes the e-brakes to drag when you drive, making a rubbing sound. You have to stop the caar, reset the brake once or twice to stop the noise.

NB: When the mechanic pointed out the rust, and asked me if I back my truck into lakes in order to launch boats, I almost lost it. I don't own a boat. Luckily the manager was there and contacted GM. This sounds like a "secret warranty".

Another issue:
Has anyone had any issues with front and rear drive gears. Apparently the Auto 4WD feature is not very functional, and wears the gears, causing them to whine, loudly. GM covered a full replacement two years ago (post warranty), Guess what -- the front end is starting to make the same noise again.

I'm getting sick of the defects -- getting a Toyota SUV next. They're bullet proof.