I had another look at the manual the other day and it is not very specific. Just press the button then exit and lock the car. It resets to normal after the car is unlocked. I played with it and found that it didn't repeat what had happened previously. When I press the immobilizer switch, the light c...

Thanks, sounds like a trip to the dealer. Maybe get the single button door lock mod done at the same time.

I have the same problem as OP. XC90 2006, it will stay up if you hold the up button after its up. But anytime auto up, it just reverses down. When we got the car 4 months ago, it would go up fine and move ever so slightly down but stayed up.

Any DIY reset

Hi folks, New here, got this 2006 XC90 V8 luxury pkg used about 6mo ago. I tried searching the forum but couldn't find this issue. Need some help on a problem with the Alarm imobilizer not working. When we hit the imobilizer switch the light comes on. Then when the car is locked with the key fob, th...