2017 back brake pads wear out

[wdavis]

First I have owned GMC/Chevy trucks all my life and have never needed to replace back brake pads before 100k miles. I now own a 2017 Chevy Silverado 1500 4wd. At about 19k miles both back brake pads wore out and damaged rotors. Chevy replaced pads and rotors at no charge.

Truck now has 39k miles and back pads have worn out again. I replaced pads and talk to GMC/Chevy and they gave me a case number to have the problem diagnosed. Took to dealership and they found no problem.

Dealership maintenance record state:  "fully inspected brakes, calipers, caliper slide pins, ebcm for possible codes for pressure issues in pressure module valve, inspected old pads.  Appears to be even wear. Brake system operating as designed. Inspect only no issues found. Brakes operating as designed."ppr

 

This  is not a problem with the way I drive as only the back pads are wearing out. Has anybody else encountered this problem or any suggestion as to what my be causing this?
 

[CamGTP]

A long shot here but maybe the rear brake hoses are no allowing the pressure to be released fully and are causing the rear brakes to stick sometimes.

[wdavis]

cam thanks for the reply. At this point anybody's guess is good since the techs at Chevy could not diagnosis the problem.

[silveradosid]

my 2014 silverado is the same, at 85k miles my rear brakes were totally gone and still had 40 percent on the front. i have been driving gm trucks since the 70s and never had rear brakes wear out before the front. i disassemble my brakes and clean and lube everything twice a year when i switch my tires from summer to winters. still dont know why the backs are wearing much faster