2008 Hummer H2 Owner's Manual - Page 89

Matching Transmitter(s) to Your Vehicle Each RKE transmitter is coded to prevent another transmitter from unlocking your vehicle. If a transmitter is lost or stolen, a replacement can be purchased through your dealer/retailer. All transmitters need to be re-coded to match the new transmitter. The lost transmitter will no longer work after the new transmitters are re-coded. The vehicle can have a maximum of eight transmitters matched to it. See "Relearn Remote Key" under DIC Operation and Displays (Using DIC Buttons) on page 3-49 or DIC Operation and Displays (Using Trip Odometer Reset Stem) on page 3-54 for instructions on how to match RKE transmitters to your vehicle. Battery Replacement Replace the battery if the REPLACE BATTERY IN REMOTE KEY message displays in the DIC. See "REPLACE BATTERY IN REMOTE KEY" under DIC Warnings and Messages on page 3-56 for additional information. Notice: When replacing the battery, use care not to touch any of the circuitry. Static from your body transferred to these surfaces may damage the transmitter. To replace the battery in the RKE transmitter: 1. Separate the halves of the transmitter with a flat, thin object inserted into the notch on the side. 2. Remove the old battery. Do not use a metal object. 3. Insert the new battery, positive side facing down. Replace with a CR2032 or equivalent battery. 4. Put the transmitter back together tightly. 2-7