TPMS light after 4 tyres replaced

RONNIE W HODGEKINSON · November 12

On 10/17/2024 at 5:05 PM, Alboy said:

It is possible that the battery has died, especially as the car is old enough to vote, bit of a coincidence to happen when the tyre is being replaced though.

Alan.. I Would think That the Damage has Enimated from When the Tyres have been Replaced Could be One or Two Sensors That have stopped Working..This is a Delicate Job And best done by Lexus......Cheers !!!

Bob King · November 12

Clutching at straws but I wonder if this unit has gone bad ?

https://www.ebay.co.uk/itm/190792261572

Alboy · November 12

1 hour ago, RONNIE W HODGEKINSON said:

Alan.. I Would think That the Damage has Enimated from When the Tyres have been Replaced Could be One or Two Sensors That have stopped Working..This is a Delicate Job And best done by Lexus......Cheers !!!

I am inclined to agree that the problem is within the wheels as that is damage that the tyre fitter could have caused, there is no physical damage though. It has also entered my mind that unit suggested by Bob is causing the issue but probably less likely to be affected by tyre replacement.

Assuming the issue is with one of the sensors, I'm wondering if the monitor only reacts to a low pressure signal and that if the wheel at fault is taken away from the car will the light go out? If that is possible I will remove one wheel at a time and see what happens. It's a shame I didn't think to test the car while it was off the ground with all the wheels removed.