Removal and Installation
1. Release the lock knob at the back of the Intelligent Key and remove the mechanical key.
2. Insert a suitable tool (A) wrapped with a cloth into the slit of the corner and twist it to separate the upper part from the lower part.
CAUTION:

3. Replace the battery with new one.
Battery replacement :Coin-type lithium battery (CR2025)

4. Align the tips of the upper and lower parts, and then push them together until it is securely closed.
CAUTION:
WITHOUT INTELLIGENT KEY SYSTEM
P0720 Output speed sensor
DTC Logic
DTC DETECTION LOGIC
DTC
Trouble diagnosis name
DTC detection condition
Possible causes
P0720
Output Speed Sensor Circuit
Under the following diagnosis
conditions, the output speed
sensor value is less than 100
rpm continuously for 5 seconds
or ...
P0744 Torque converter
Description
This DTC is detected when the torque converter clutch solenoid valve is
electrically normal but the torque converter
clutch does not engage. This is not due to an electrical malfunction (circuit
open or shorted), but is
instead due to a mechanical malfunction (sticking of the cont ...