Honda Civic User's Information Manual page 7

Handling Transmitter
The transmitter is a sophisticated
electronic device.
To maintain optimum system
performance, avoid mishandling
the remote engine starter (e.g.,
dropping, throwing).
Temperature
Avoid exposing the transmitter to
extreme hot or cold weather
conditions.
Liquids
Never submerge the transmitter in
water.
Though this transmitter is water
resistant, do not operate or store it
in a place where it can be
splashed with water. It can cause
the transmitter to malfunction.
7336020T
Outside Cleaning
Use a soft cloth to clean the transmitter.
Do not use kerosene, thinner, or any other type of solvent.
Children
6410070B Store the transmitter out of reach
of children.
Safety Guidelines
7336030T
6410080B
7