Hyundai Sonata: Battery replacement

The transmitter uses a 3 volt lithium battery which will normally last for several years. When replacement is necessary, use the following procedure.
1. Insert a slim tool into the slot and gently pry open the transmitter center
cover.
2. Replace the battery with a new battery (CR2032). When replacing the battery,
make sure the battery positive “+” symbol faces up.
3. Install the battery in the reverse order of removal.
For replacement transmitters, see an authorized HYUNDAI dealer for transmitter reprogramming.
CAUTION
- The transmitter is designed to give you years of trouble-free use, however it can malfunction if exposed to moisture or static electricity. If you are unsure how to use your transmitter or replace the battery, contact an authorized HYUNDAI dealer.
- Using the wrong battery can cause the transmitter to malfunction. Be sure to use the correct battery.
- To avoid damaging the transmitter, don't drop it, get it wet, or expose it to heat or sunlight.
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.
Transmitter precautions
✽ NOTICE
The transmitter will not work if any of following occur:
The ignition key is in ignition switch.
You exceed the operating distance limit (about 90 feet [30 m]).
The battery in ...
Theft-alarm system
This system is designed to provide protection from unauthorized entry into the
vehicle. This system is operated in three stages: the first is the "Armed" stage,
the second is the " ...
See also:
Key operations
(1) Master key (M)
Used to start the engine, lock and unlock the doors, lock and unlock the glove
box, and open the trunk.
(2) Sub key (S)
Used only to start the engine and lock and unlock the do ...
Specifications
Specifications
Item
Specification
Transmission type
A6MF2
Engine model
Gasoline 2.4 GDI
Torque conve ...
Before starting
Close and lock all doors.
Position the seat so that all controls are easily reached.
Adjust the inside and outside rearview mirrors.
Be sure that all lights work.
Check all gauges.
Check ...
