How to retract rear caliper pistons on EPB-equipped 2015 SUV during pad replacement?

[Gregory_C]

I'm about to attempt my first brake pad replacement on my 2015 compact SUV this weekend after watching several tutorials, and I've gathered all the basic tools, but I'm nervous about a few specific steps. I'm confident I can get the caliper off and the old pads out, but I'm unsure about the correct procedure for compressing the caliper piston, especially since my vehicle has an electronic parking brake integrated into the rear calipers. Do I need a special scan tool to retract those pistons, or is there a manual override? Also, while I plan to inspect the rotors, if they have minor grooves but are within thickness spec, is it absolutely necessary to resurface them, or can I get away with just installing the new pads and bedding them in properly? Any tips on avoiding common mistakes like not lubricating the slide pins correctly would be greatly appreciated.

[JohnA]

You’re right to be cautious—the EPB rear calipers often complicate DIY pad changes. In most modern cars with an integrated electronic parking brake, you don’t just push the piston back with a C-clamp. The piston needs to be retracted via the car’s EPB system through a scan/tool procedure or the specific service procedure for that model. If you don’t have access to the right tool, you risk damaging the EPB motor or the caliper. Double-check your service manual or a repair database for your exact make/year; some folks borrow a tool or have a shop perform the retraction before you press in the new pads.