Replacing the battery
When the transmitter's battery begins to get weak, it may take several pushes on the button to lock or unlock the doors, and the LED will not light. Replace the battery as soon as possible.
Battery type : CR2032
Replacement instructions:
1. Carefully separate the case with a blade screwdriver.

2. Remove the old battery from the case and note the polarity. Make sure the polarity of the new battery is the same(+side facing up), then insert it in the transmitter.
CAUTION:
An inappropriately disposed battery can be harmful to the environment and human health. Dispose the battery according to your local law(s) or regulation.
See also:
Care of seat belts
Seat belt systems should never be disassembled or modified. In addition, care
should be taken to assure that seat belts and belt hardware are not damaged by seat
hinges, doors or other abuse.
WAR ...
Hybrid-ness
Before I get into the performance and technology aspects of what makes the
Sonata Hybrid tick, I've got to point out the fact that the Sonata Hybrid looks
dramatically different from its gasoline- ...
SPEEDOMETER
Your Hyundai's speedometer is calibrated in miles per hour (on the outer scale)
and kilometers per hour (on the inner scale). ...


