Battery Disconnect/Reconnect Precautions: Notes
WARNING: This page is about a different car, the 2002 Volvo V40 and 2001 Volvo V40. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Always disconnect the battery negative lead first. DO NOT disconnect positive lead in engine compartment first.
WARNING:
The key must be in position No. 2. No one must be in vehicle when battery is connected. This is a safety precaution in case an air bag module activates when power is connected.