The following procedures may be used to start the engine if the vehicle’s battery is discharged.
You can also call your toyota dealer or a qualified repair shop.
If you have a set of jumper (or booster) cables and a second vehicle with a 12-volt battery, you can jump start your vehicle by following the steps below.

Vehicles with a smart key system: maintain the engine speed of the second vehicle and start the engine of your vehicle by turning the engine switch to ignition on mode.
Once the engine starts, have the vehicle inspected at your toyota dealer as soon as possible.
Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
To prevent battery discharge
Charging the battery
The electricity stored in the battery will discharge gradually even when the vehicle is not in use, due to natural discharge and the draining effects of certain electrical appliances. If the vehicle is left for a long time, the battery may discharge, and the engine may be unable to start. (The battery recharges automatically during driving.)
When recharging or replacing the battery (vehicles with a smart key system)
If you are unsure what mode the engine switch was in before the battery discharged, be especially careful when reconnecting the battery.
When the battery is removed or discharged
Caution
Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable gas that may be emitted from the battery:
Battery precautions
Place a wet sponge or cloth over the affected area until medical attention can be received.
Notice
When handling jumper cables
When connecting the jumper cables, ensure that they do not become entangled in the cooling fans or engine drive belt.
If the electronic key does
not operate properly
(vehicles with a
smart key system)
If your vehicle overheatsCooling fan motor
On-vehicle inspection
Inspect no. 1 Cooling fan motor
Disconnect the no. 1 Fan connector.
Connect the battery and ammeter to the no. 1 Fan
motor connector.
Check that the no. 1 Fan rotates smoothly, and then
check the reading on the ammeter.
Standard amperage ...
Test mode procedure
Hint:
By switching the skid control ecu from normal mode to
test mode, abnormality detection sensitivity is enhanced
and troubleshooting can be conducted efficiently.
Perform a sensor check in test mode after the speed
sensor or sensor rotor has been repaired or replaced.
If the igniti ...
Driver side rear airbag sensor circuit malfunction
Description
The rear airbag sensor lh consists of parts including the diagnostic circuit
and the lateral deceleration
sensor.
When the center airbag sensor receives signals from the lateral deceleration
sensor, it determines
whether or not the srs should be activated.
Dtc b1630/23 i ...