The battery is likely dead and needs to be replaced but the remote s may also need to be reprogrammed to work.
Volvo t5 remote door lock problem.
You may prefer to avoid having your local dealer reprogram it for around 150 per key.
If this happens the problem is with the remote.
The door lock works in only one direction.
This fix applies to all 98 2000 v70 and s70 p80 genera.
This issue also indicates a bad lock actuator.
The volvo keyless entry remote control must be reprogrammed if its batteries go dead.
Having issues with your doors not locking when you press the button.
Locks work from the switch but not the remote.
If your door handle works your key turns but it doesn t lock or unlock this is likely your problem.