On Sport model

Your vehicle comes with the two ignition keys.
All models except Sport

You should have received a key number tag with your keys. You will need this key number if you ever have to get a lost key replaced. Use only Honda-approved key blanks.
These keys contain electronic circuits that are activated by the immobilizer system. They will not work to start the engine if the circuits are damaged.
• Protect the keys from direct sunlight, high temperature, and high humidity.
• Do not drop the keys or set heavy objects on them.
• Keep the keys away from liquids.
If they get wet, dry them immediately with a soft cloth.
All models except Sport
The keys do not contain batteries.
Do not try to take them apart.
Horn Test/Replacement
'09-11 models
Remove the front grille cover.
Disconnect the 1P connector (A) from the horn (B).
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Door Locks
Each door has a lock tab on the top of the door. Push in the tab to lock the
door, and pull it out to unlock.
On Canadian DX model
To lock the passenger’s door when getting out of the vehicle, ...
HandsFreeLink System Description
HandsFreeLink Control Unit Connector for Inputs and Outputs
...