Saturn 2007 Ion Owner's Manual page 93

Battery Replacement
Under normal use, the battery in your RKE
transmitter should last about four years.
You can tell the battery is weak if the transmitter
will not work at the normal range in any location.
If you have to get close to your vehicle before
the transmitter works, it is probably time to change
the battery.
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.
1. Use a flat thin object to pry open the
transmitter.
2. Once the transmitter is separated, use a
toothpick, pen cap, or similar object to remove
the old battery. Do not use a metal object.
3. Insert the new battery as the instructions
under the cover indicate.
4. Snap the transmitter back together tightly so
moisture cannot enter.
5. Check the operation of the transmitter.
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