1400 miles on the clock and my ASR light came on. The display showed Hill Stop Unavailable and the van went into limp mode. I took it to the dealer for warranty job and they replaced the brake pedal switch. 20 miles up the road and the lights came on again! So frustrating. I have to take her back again next week but don’t want to start booking sites until all is well with the MH. Any ideas that I can tell the mech what to look for? All advice gratefully received.