Ours squealed on application one day, warning lights came on, cleared errors pressed button to release, more screeching, hand brake was not on, so relieved, and stopped using it, putting tap over the button.
GAP tool said about 19k operations.
Ordered aftermarket set for $500, read some more here and in the manual, and found out could be from lack of adjusted brake shoes. So figured had to do them anyway even if installing new system, so did them first, and found one side was very loose, the other fairly.
Plenty of shoe left, but not sure if they are meant to auto adjust, but mine hadnt, and about 6 months ago id had the brakes apart and hub off to replace bearings, and not realised you had to readjust the park brake...
Now adjusted, ran the unjam procedure twice on GAP tool, as first time it said failed, (second time did too, but often procedures in gap say failed but they worked) but on second time it made a ratchety noise compared to just motor noise on first time.
The GAP procedure may not have been necessary, but afterwards the brake is working fine again for $0 spent :) - as i can return the kit. Hopefully it stays fixed.
I also ordered a gear set to just have on hand as so cheap just in case one day.
