Rear back wheel making weird squeak when I take foot off brakes
There may be a bit of brake dust. Do this. Go into an empty parking lot, put the truck in reverse and push on the gas, after the truck starts moving 1-3mph, pump the brakes and bring the truck to a full stop. Do this 2-3 times. Also set the parking brake and leave the truck in D, or R for just a second. Apply the regular brakes and release the parking brake. If it is just brake dust, or a slight brake adjustment that is needed, those two troubleshooting tips should do the trick man.
2011 should have rear disc brakes so I'm going to say that it is most likely dry caliper slides, you may have to remove the calipers and lube the slides, make sure you use the correct lube. This is of course assuming that the brake pads are in good shape and not worn down to the sounders.
It does it with the service break and the parking break when the e brake is applied it quits
The other brakes use a different system that is inside of the brake rotor, I still think it is dry caliper slides.
How much is that normally
Good question, I wouldn't have any idea, but I'm sure a shop will charge you a hour labor time, so whatever that is nowadays. Try searching it on you tube, you may find it is easy enough for you to tackle it yourself. Just be safe.
Looking for a Used Sierra 1500 in your area?
CarGurus has 60,427 nationwide Sierra 1500 listings starting at $1,299.
Search GMC Sierra 1500 Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
GMC Sierra 1500 Experts