Subaru 2009 Tribeca Owner's Manual page 107

swallow them.
When the transmitter battery begins to get
weak, transmitter range will begin to
decrease. Replace the battery as soon
as possible.
To replace the battery:
1. Remove the screw on the key head.
2. Open the key head using a flat-head
screwdriver.
3. Remove the transmitter case from the
key head.
Keys and doors
4. Open the transmitter case by releasing
the hooks.
5. Remove the old battery from the
holder.
1) Negative (−) side facing up
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