DB9 Traction control trips in at 45/50 mph. key fob battery.

[Gin Man]

Having awoken the car from its hibernation, when I exceed 45/50 mph the TC emblem illuminates and the car goes into low power, if I switch the TC off normal power is returned. I had new front tyres fitted over winter will the car need resetting?
Also to add insult to injury the key fob low battery warning has come on, is it a straight forward job to replace the fob battery as I have read that it will need to be re coded?

[roughrider]

Are your new tyres a different profile to standard, ie, has the circumference increased? That would make the relative wheels speeds different from the factory settings, which would induce traction control as per your symptom.

[DAMIT]

Gin Man said:

Also to add insult to injury the key fob low battery warning has come on, is it a straight forward job to replace the fob battery as I have read that it will need to be re coded?

Easy jop to replace battery. Instructions in the car manual.

[Gin Man]

Thanks for that, I've changed the fob battery, no problem, the tyre issue is puzzling, the rear tyres are 30 profile not 35 as recommended, unfortunately I never checked the profile on the old front tyres maybe they were also a lower profile.
New rear tyres sound like the way forward.

[yvr]

Different F/R profiles probably result in different circumference (depending on other factors). Wheel speed sensors then detect the rears spinning faster, which looks like wheel spin to the traction control.

[Gin Man]

New rear tyres sorted that problem, let's see what other things can go wrong!!!!!!