Volvo V90 Owner's Manual page 250

KEY, LOCKS AND ALARM
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Turn the key, move the button to the side
and slide the back shell a few millimetres
upwards.
The shell will then come free and can be
lifted off the key.
248
Use a screwdriver or similar to turn the bat-
tery cover anticlockwise until the markings
meet at the OPEN text.
Carefully lift away the battery cover by press-
ing e.g. a fingernail into the recess.
Then prize the battery cover upwards.
The battery (+) side is facing upwards. Then
carefully prize loose the battery as illustrated.
IMPORTANT
Avoid touching new batteries and their con-
tact surfaces with your fingers as this may
impair their function.