2009 Toyota Sienna Owners Manual - Page 497

4 -3 . Do-it -yourse lf m a int e na nc e Wire le ss re m ot e c ont rol bat t e r y Replace the battery with a new one if it is discharged. n You will need the following: Lithium battery (CR2032) n Replacing the battery STEP 1 Remove the cover using a coin protected with tape etc. STEP 2 Remove the discharged transmitter battery. Insert a new battery with the "+" terminal facing up. 472