1999 Toyota Sienna Owners Manual - Page 26
1999 Toyota Sienna Manual
Page 26 highlights
name. SIENNA (45403U) Replacing transmitter battery For replacement, use a CR2032 battery or equivalent. CAUTION Special care should be taken that small children do not swallow the removed transmitter battery or components. NOTICE When replacing the terminal battery, be careful not to lose the components. Replace the transmitter battery by the following procedures: 1. Using a coin or equivalent, open the transmitter case. 2. Remove the discharged transmitter battery. NOTICE Do not bend the terminals. 26