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Re: Electric Handbrake will not auto release on a steep incline - my drive
Assuming that your brake works elsewhere I'd suggest straight away going for a diagnostic.
Units have a slope detection system internally and apply the brake power needed for that slope, a bit like you'd give an extra tug to a manual system on a hill.
They release when the conditions for release are met which is partly based on how steep the slope is (and throttle and clutch position) Same as you do on a hill start.
Steeper the slope, more power needed before the thing lets go.
It maybe that the things confused and needs a reset.
Could also be that you are being a little gentle with it.
When I got mine I seemed to be kangarooing a little on hill starts trying to work out where/when the handbrake would release. Soon got used to it and these days just pull away and let the thing do what it wants. Seems to work.
Currently in Dancingdad's garage:
Qashqai 1.6 spark driven, Kia Sedona 2.9 TDI, Scenic II 15DCi 2004 (SORN) not quite RIP.