Fig. 1: Special Tool Chart
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
ON-VEHICLE SERVICE HOW TO REPLACE THE TRANSMITTER BATTERY 1. Remove the set screw to remove the battery from the transmitter.
2. Install a battery with its (+) side face-down.
Battery required for replacement: Coin type battery CR2032
CAUTION: Do not allow water or dust to enter the inside of the
transmitter when it is opened. Also, do not touch the
precision electronic device.
2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Keyless Entry System - Endeavor