Tyre Control Inactive

[timdanz]

Hello,

Vehicle: 2003 E53 X5 4.6is

I am receiving the message 'Tyre Control Inactive' on my dashboard. Despite checking all tyre pressures are correct and resetting as per manual, the message returns each time.

(Note that I previously performed a search on this site prior to this post but there was no suggested fix on those posts so I am trying for a fresh post.)

Any ideas?

Thanks!!!