Hey, just wondering if you have to do this or can you manually push back the brake pistons like in other cars?? Trying to do it myself not take it to the shop.
@ChrisGarcia-i8p for the rear brakes. you can not just push the caliper back. There is a ratcheting mechanism inside. The electric motor turns and pulls or pushes the piston in and out when applying or disengaging the e brake. When putting it into maintenance mode using a scan tool it will apply the brake and then retract the piston. Caliper needs to be in place with the pads in caliper when putting into maintenance mode. Otherwise you will damage the caliper. When taking it out of maintenance mode it applies the piston to sinch the pads and then releases it slightly. Calibrating it to a new rest position. For specific brake pad or caliper piston distance. Alot of these new vehicles have rain sensing sensors and when raining the brakes may apply slightly to keep brake pad and rotors dry for optimal braking. Or when in a skid or slide the traction control abs kicks in appropriately. When using a scan tool and removing from brake maintenance mode it calibrates the system, pad life, pad drag etc. Also when removing from brake maintenance mode I believe tires need to be back on the vehicle and vehicle needs to be back on the ground on level surface to calibrate back to pad rest position as there is ride height position sensors that corilate with the brakes abs traction control system when exiting brake maintenance mode. Multiple sensors working together. I looked for a safe alternative route before updating my scan tool as the update was 1500$ cad to do this job. I did not find a safe manual alternative route with out a proper scan tool to put it into and take out of brake maintenance mode with calibration so I purchased the update for my scan tool to correctly do the job. For the rear brakes on this I would not attempt to do it manually as you run the risk of damaging the caliper $500-$1000+ each guessing. System not calibrated correctly, possible overheating rotor-pad scenario, traction control abs not working correctly. I would take it to a shop.
Hey, just wondering if you have to do this or can you manually push back the brake pistons like in other cars?? Trying to do it myself not take it to the shop.
@ChrisGarcia-i8p for the rear brakes. you can not just push the caliper back.
There is a ratcheting mechanism inside.
The electric motor turns and pulls or pushes the piston in and out when applying or disengaging the e brake.
When putting it into maintenance mode using a scan tool it will apply the brake and then retract the piston. Caliper needs to be in place with the pads in caliper when putting into maintenance mode. Otherwise you will damage the caliper.
When taking it out of maintenance mode it applies the piston to sinch the pads and then releases it slightly. Calibrating it to a new rest position.
For specific brake pad or caliper piston distance.
Alot of these new vehicles have rain sensing sensors and when raining the brakes may apply slightly to keep brake pad and rotors dry for optimal braking.
Or when in a skid or slide the traction control abs kicks in appropriately.
When using a scan tool and removing from brake maintenance mode it calibrates the system, pad life, pad drag etc.
Also when removing from brake maintenance mode I believe tires need to be back on the vehicle and vehicle needs to be back on the ground on level surface to calibrate back to pad rest position as there is ride height position sensors that corilate with the brakes abs traction control system when exiting brake maintenance mode.
Multiple sensors working together.
I looked for a safe alternative route before updating my scan tool as the update was 1500$ cad to do this job. I did not find a safe manual alternative route with out a proper scan tool to put it into and take out of brake maintenance mode with calibration so I purchased the update for my scan tool to correctly do the job.
For the rear brakes on this I would not attempt to do it manually as you run the risk of damaging the caliper $500-$1000+ each guessing. System not calibrated correctly, possible overheating rotor-pad scenario, traction control abs not working correctly.
I would take it to a shop.