Fail-Safe Chart

WARNING: This page is about a different variant/trim than selected.

Constant speed control mode and vehicle-to-vehicle distance control mode:

If any of the following auto cancel conditions are detected while the dynamic radar cruise control system is controlling vehicle speed, the system clears the stored vehicle speed and cancels control of vehicle speed by the dynamic radar cruise control system.

Fig 1: Checking Cruise Control Indicator Light

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TEXT IN ILLUSTRATION

*1	Cruise Control Indicator Light (Constance speed control mode)
*2	Cruise Control Indicator Light (Vehicle-to-vehicle distance control mode)

Vehicle Condition	Auto Cancel Condition	Fail-safe Deactivation Condition
Cruise control indicator light blinks A warning message is displayed "Pong" warning sound is heard	Open or short in stop light switch circuit Problem with vehicle speed signal	Cruise control system is turned off and back on again using the cruise control switch (ON-OFF button).

Vehicle-to-vehicle distance control mode:

Fig 2: Identifying Vehicle-To-Vehicle Distance Control Mode Indicator

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TEXT IN ILLUSTRATION

*1	Vehicle-to-vehicle Cruise Control Indicator Light

Vehicle Condition	Auto Cancel Condition	Fail-safe Deactivation Condition
Vehicle-to-vehicle cruise control indicator light blinks A warning message is displayed "Pong" warning sound is heard	Problem with millimeter wave radar sensor Beam axis of millimeter wave radar sensor deviates Communication stop between skid control ECU and driving support ECU assembly	Power switch is turned off and back on (READY) again.

Vehicle-to-vehicle distance control mode:

Fig 3: Identifying Vehicle-To-Vehicle Distance Control Mode Indicator

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If any of the following auto cancel conditions are detected while the dynamic radar cruise control system is controlling vehicle speed, the system maintains the stored vehicle speed in memory and cancels control of vehicle speed by the dynamic radar cruise control system.

TEXT IN ILLUSTRATION

*1	Vehicle-to-vehicle Cruise Control Indicator Light

Vehicle Condition	Auto Cancel Condition	Fail-safe Deactivation Condition
Vehicle-to-vehicle cruise control indicator light blinks A warning message is displayed "Pong" warning sound is heard	There is dirt on millimeter wave radar sensor Wipers operating on HI setting Millimeter wave radar sensor sensitivity reduced because of bad weather such as rain, fog, snow, or sandstorm	Cruise control system is turned off and back on again using the cruise control switch (ON-OFF button).

Constant speed control mode:

If the following auto cancel condition is detected while the dynamic radar cruise control system is controlling vehicle speed, the system clears the stored vehicle speed and cancels control of vehicle speed by the dynamic radar cruise control system.

Vehicle Condition	Auto Cancel Condition	Fail-safe Deactivation Condition
Cruise control indicator light on	Vehicle speed is lower than stored speed by approximately 16 km/h (10 mph) or more	Cruise control switch is pushed -/SET

Constant speed control mode and vehicle-to-vehicle distance control mode:

If the following auto cancel condition is detected while the dynamic radar cruise control system is controlling vehicle speed, the system maintains the stored vehicle speed in memory and cancels control of vehicle speed by the dynamic radar cruise control system.

Vehicle Condition	Auto Cancel Condition	Fail-safe Deactivation Condition
Cruise control indicator light on	VSC system operates while driving with cruise control system controlling vehicle speed	Push the cruise control switch to +/RES

Constant speed control mode and vehicle-to-vehicle distance control mode:

Vehicle Condition	Auto Cancel Condition	Fail-safe Deactivation Condition
Cruise control indicator light on	Malfunction in the hybrid vehicle control system Problem with vehicle speed signal and yaw rate sensor signal	Cruise control system is turned off and back on again using the cruise control switch (ON-OFF button).

Constant speed control mode and vehicle-to-vehicle distance control mode:

Fig 4: Checking Cruise Control Indicator Light

TEXT IN ILLUSTRATION

*1	Cruise Control Indicator Light (Constance speed control mode)
*2	Cruise Control Indicator Light (Vehicle-to-vehicle distance control mode)

Vehicle Condition	Auto Cancel Condition	Fail-safe Deactivation Condition
Cruise control indicator light blinks A warning message is displayed "Pong" warning sound is heard	Problem with stop light switch input circuit Problem with cruise control switch cancel circuit	Power switch is turned off and back on (READY) again.