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Installation Procedure

Install the battery with the positive (+) side up. Use one 3 V CR2032 battery (or the equivalent).
Ensure that the seal is in position. Align the 2 halves of the case and snap the two halves together.
Resynchronize the transmitter. Refer to TRANSMITTER SYNCHRONIZATION .

Fig 1: Installing Battery With Positive (+) Side Up
Courtesy of GENERAL MOTORS CORP.