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.
A/T Housing Reverse Idler Gear Installation (A/T)
Lightly coat the reverse idler gear shaft (A), the needle bearing (B),
and new O-rings (C) with lithium grease.
Assemble the new O-rings and the needle bearing on the reverse ...
A/T Differential Backlash Inspection (A/T)
Install the driveshaft and intermediate shaft into the differential
assembly, and place the axles on V-blocks (A).
Measure the backlash of the pinion gears (B) wit ...
Change Lever Clearance Inspection (M/T)
Measure the clearance between the change lever (A) and the select lever
(B) with a feeler gauge (C). If the clearance is more than the service
limit, go to step 2.
...