Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
Vehicles without a smart key system

To prevent damage to the key, cover the tip of the screwdriver with a rag.

And remove the depleted battery.
Insert a new battery with the “+” terminal facing up.

Vehicles with a smart key system

To prevent damage to the key, cover the tip of the screwdriver with a rag.

Insert a new battery with the “+” terminal facing up.

Use a cr2016 (vehicles without a smart key system), or cr2032 (vehicles with a smart key system) lithium battery
If the key battery is depleted
The following symptoms may occur:
Caution
Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking.
Keep away from children. Failure to do so could result in death or serious injury.
Notice
For normal operation after replacing the battery
Observe the following precautions to prevent accidents:
Moisture may cause the battery to rust.
Air conditioning filter
Checking and replacing
fusesThe keys
The following keys are provided with the vehicle.
Vehicles without a smart key system (type a)
Master keys
Operating the wireless remote control
function
Valet key
Key number plate
Vehicles without a smart key system (type b)
Master keys
Operating the wireless r ...
How to proceed with troubleshooting
Hint:
Use these procedures to troubleshoot the tire pressure
warning system.
*: Use the intelligent tester.
Vehicle brought to workshop
Inspect battery voltage
Standard voltage:
11 to 14 v
If the voltage is below 11 v, recharge or replace the battery
before proceeding.
...
Cooling system
On-vehicle inspection
Check cooling system for leaks
Remove the radiator reservoir cap.
Caution:
To avoid the danger of being burned, do not
remove the radiator reservoir cap while the
engine and radiator are still hot. Thermal
expansion will cause hot engine coolant and
steam to b ...