The brightness of the instrument panel lights can be adjusted.

1. Brighter
2. Darker
The meters and display illuminate when (Optitron type meter)
Vehicles without a smart key system:
The engine switch is in the “ON” position.
Vehicles with a smart key system:
The “ENGINE START STOP” switch is in IGNITION ON mode.
Eco Driving Indicator Light will not operate in the following conditions
• The shift lever is in anything other than D.
• The vehicle speed is approximately 80 mph (130 km/h) or higher.
When the average fuel consumption is reset
The average fuel consumption displayed on the accessory meter and “Past Record” screen of the Display Audio system (if equipped) or the navigation system (if equipped) will be reset at the same time.
The brightness of the instrument panel lights (Optitron type meter)
When the headlight switch is turned to on, the brightness will be reduced slightly unless the control dial is turned fully upward.
NOTICE
To prevent damage to the engine and its components
• Do not let the indicator needle of the tachometer enter the red zone, which indicates the maximum engine speed.
• The engine may be overheating if the engine coolant temperature gauge is in the red zone (H). In this case, immediately stop the vehicle in a safe place, and check the engine after it has cooled completely.
While driving (Optitron type meter)
When the voltmeter indicates more than 19 V or less than 9 V, the battery may be malfunctioning. Have your vehicle checked at your Toyota dealer.
Switching the display
Indicators and warning lightsSound Signal Circuit between Navigation Receiver Assembly and Stereo Component
Amplifier
DESCRIPTION
The navigation receiver assembly sends a sound signal to the stereo component
amplifier assembly via the sound signal circuit.
The sound signal that has been sent is amplified by the stereo component amplifier
assembly, and then is sent to th ...
Engine (ignition) switch (vehicles with a smart key system)
Performing the following operations when carrying the electronic key on
your person starts the engine or changes “ENGINE START STOP” switch modes.
Starting the engine
Check that the parking brake is
set.
Check that the shift lever is
set in P.
...