2008 Toyota Land Cruiser Owners Manual - Page 436

4-3. Do-it-yourself maintenance STEP 3 Remove the depleted battery. Insert a new battery with the "+" terminal facing up. n If the electronic key battery is discharged The following symptoms may occur. l The smart key system and wireless remote control will not function properly. l The operational range is reduced. n Use a CR1632 lithium battery Maintenance and care 4 l Batteries can be purchased at your Toyota dealer, jewelers, or camera stores. l Replace only with the same or equivalent type recommended by a Toyota dealer. l Dispose of used batteries according to the local laws. 411