Your vehicle includes a variety of electronic features that can be personalized to your preferences. Programming these preferences requires specialized equipment and may be performed by an authorized Toyota dealership.
Some function settings are changed simultaneously with other functions being customized. Contact your Toyota dealer for further details.
Customizable features

Customization
Items to initializeCommunication Error from ECM to VSC (P1631)
DESCRIPTION
The ECM sends signals such as A/T information signals, dynamic radar cruise control
operation signals, brake operation demand signals, and buzzer operation demand signals
to the skid control ECU (brake actuator assembly) when the dynamic radar cruise
control is operating. Therefor ...
Precaution
PRECAUTION
1. IGNITION SWITCH EXPRESSIONS
(a) The type of ignition switch used on this model differs according to the specifications
of the vehicle. The expressions listed in the table below are used in this section.
Expression
Ignition Switch (Position)
Engine ...
Front Radar Sensor (C1A10)
DESCRIPTION
C1A10 is output when there is an internal malfunction in the millimeter wave
radar sensor assembly.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
MIL
C1A10
Front Radar Sensor
W ...