The indicator and warning lights on the instrument cluster and center panel inform the driver of the status of the vehicle’s various systems.
Instrument cluster

Center panel

■ Indicators
The indicators inform the driver of the operating state of the vehicle’s various systems.
Turn signal indicator
Headlight high beam indicator
Headlight indicator
Tail light indicator
Security indicator
Shift position and shift range indicators
Shift position and shift range indicators
Cruise control indicator
Slip indicator
VSC OFF indicator
TRAC OFF indicator
Downhill assist control system indicator
RSCA OFF indicator
Active traction control system
indicator
AUTO LSD indicator
Four-wheel drive indicator
4LO indicator
Rear differential lock indicator
AIR BAG ON indicator
AIR BAG OFF indicator
■ Warning lights
Warning lights inform the driver of malfunctions in any of the vehicle’s systems.

*1: These lights turn on when the engine switch is turned to the ON position to indicate that a system check is being performed. They will turn off after the engine is started, or after a few seconds. There may be a malfunction in a system if a light does not come on, or if the lights do not turn off. Have the vehicle inspected by your Toyota dealer.
*2: The indicator flashes to indicate that the system is operating.
*3: The indicator light comes on to indicate a malfunction.
*4: The indicator flashes to indicate a malfunction.
*5: For 2WD models, even though there is no function of deactivating the curtain shield airbags in a vehicle rollover, the RSCA OFF indicator turns on briefly when the engine switch is turned to the ON position. But this is not a malfunction.
CAUTION
■If a safety system warning light does not come on
Should a safety system light such as ABS and the SRS airbag warning light not come on when you start the engine, this could mean that these systems are not available to help protect you in an accident, which could result in death or serious injury. Have the vehicle inspected by your Toyota dealer immediately if this occurs.
Gauges and metersCruise Control Switch Circuit
DESCRIPTION
This circuit sends signals to the ECM depending on the cruise control main switch
condition.
The battery supplies the positive (+) battery voltage to the cruise control main
switch. Then terminal CCS of the ECM receives the voltage as the signal according
to the switch condition. ...
Engine Switch Illumination Circuit
DESCRIPTION
The illuminated entry system controls the engine switch illumination.
WIRING DIAGRAM
PROCEDURE
1.
READ VALUE USING TECHSTREAM (POWER/ENGINE SW LIGHT)
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch to ON.
(c) Turn the Techstream ...
ECU Power Source Circuit
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following
inspection procedure.
PROCEDURE
1.
INSPECT BATTERY
(a) Check the battery voltage.
Standard voltage:
11 to 14 V
NG
...