Volvo 2007 S80 Owner's Manual page 49

Opening the remote key/PCC
Slide the spring loaded catch
NOTE
Turn the remote key with the buttons downward so that the battery does not fall out when the cover is removed.
Insert a small screwdriver in the hole behind the spring loaded catch and carefully pry up the cover
CAUTION
When handling batteries, avoid touching their contact surfaces as this could result in poor battery function in the
remote key.
Note the position of the battery's (+) or (-) sides. Use the screw driver to pry out the old battery and insert a new
one.
Re-assembling the remote key
1. Press the remote key's cover into place.
2. Hold the remote control with the slot for the key blade up.
3. Carefully slide the key blade into its groove.
4. Gently press the key blade in the groove until it clicks into place.
to the side and pull the key blade out of the remote control .
.