Anyone who has TPMs on thier car or van be warned ? the batteries in mine needed changing and OH BOY what a job to get them off, the nut on the back which locks them was solid and the key that is with the pack was useless, i had to use a pair of pipe grips on the rubber of the valve and a small adjustable spanner on the nut. The nuts were siezed on and eventually after about 2 hours managed to get them loose and damaged the rubber on the valves.
Changed the batteries and put them back without using the lock nut, so if you have these on keep a check that they dont stick on like mine did
Changed the batteries and put them back without using the lock nut, so if you have these on keep a check that they dont stick on like mine did