what year is it
Replace the battery on your remote key. If you get the dealer to do it for you it is notoriously expensive. Did you try unlocking the passenger side with the key?
Yes. They use watch batteries.
Yes
Take out the skeleton key, with the key push down the opposite side, the back cover of the smart key will come off, a cr 2025 needed
how to reset remote key fob for Mercedes SL 320
The Honda Accord remote key does have a battery.
On Volvo S40 2004 onwards, when the remote key battery voltage is low a text message is displayed in driver's information message screen that the remote key battery voltage is low which means the remote key battery should be replaced. .ab.
The Dealer. With remote about $150, without remote $20, new battery for remote $10 (google it). Most dealers carry the remote housing that your key "blade" portion and electronics can be transfered to. Cost is about $20 to $30. If this about a key with remote that is no longer working check to see if it is properly synced with the car (see you owners manual), very easy to do.
press button twice very quickly, then put key in lock, turn to position two. job done
Pull the key out of the plastic remote. Look down in the crack, and you will see a gray little button. Press the button down with the key you pulled out, and flip the top plastic piece upwards while holding down the gray button. The battery will slide right out after that!