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Home >> Toyota >> 2020 >> RAV4 LE, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 94 (Dynamic Radar Cruise Control System (HV) - Diagnostics - Introduction (2 Of 2)) >> DYNAMIC RADAR CRUISE CONTROL SYSTEM (for HV Model) >> Fail-Safe Chart [11/2018 - 02/2019] >> Fail-Safe Chart [11/2018 - 02/2019]

Fail-Safe Chart [11/2018 - 02/2019]

WARNING: This page is about a different variant/trim than selected.
  1. Automatic Cancel Control 
    CONSTANT SPEED CONTROL MODE:

    Condition Multi-information Display Master Warning Light Cruise Control Indicator Warning Buzzer
    When the following condition (s) occurs while the vehicle is in motion during cruise control, the system clears the set vehicle speed and cancels cruise control.
    1. When the vehicle running speed has fallen below the lower speed limit (approximately 30 km/h [20 mph])
    		 - Does not illuminate Illuminates -
    When the following condition (s) occurs while the vehicle is in motion during cruise control, the system clears the set vehicle speed and cancels cruise control. Cruise control is prohibited until the power switch is turned off.
    1. Malfunction in hybrid control system
    		 - Illuminates Does not illuminate -
    When the following condition (s) occurs while the vehicle is in motion during cruise control, there is a possibility of overloading or an overly high set vehicle speed and such. Clear the set vehicle speed and cancel cruise control (can be reset).
    1. Vehicle speed is less than set vehicle speed by approximately 16 km/h (10 mph) or more
    		 - Does not illuminate Illuminates -
    When the following condition (s) occurs while the vehicle is in motion during cruise control, the system clears the set vehicle speed and cancels cruise control. Cruise control is prohibited until the power switch is turned off.
    1. Open or short in stop light switch circuit
    2. Malfunction in stop light switch input circuit
    3. Malfunction in cruise control cancel circuit
    4. Malfunction in the electronically controlled brake system
    5. Communication malfunction between skid control ECU (brake booster with master cylinder assembly) and hybrid vehicle control assembly
    		 Cruise Control Malfunction Visit Your Dealer Illuminates Does not illuminate Sounds
    When the following condition (s) occurs while the vehicle is in motion during cruise control, cruise control (set vehicle speed is held) is canceled.
    1. VSC operates
    2. TRAC operates for a certain period of time
    3. Parking support brake operates
    4. Drive start control is performed
    5. Electric parking brake is applied
    6. TRAC/VSC is turned off
    7. Pre-collision system operates
    		 - Does not illuminate Illuminates -
    VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE:

    Condition Multi-information Display Master Warning Light Cruise Control Indicator Warning Buzzer
    When the following condition (s) occurs while the vehicle is in motion during dynamic radar cruise control, the system clears the set vehicle speed and cancels cruise control. Cruise control is prohibited until the power switch is turned off.
    1. Malfunction in hybrid control system
    		 - Illuminates Does not illuminate -
    When the following condition (s) occurs while the vehicle is in motion during dynamic radar cruise control, the system clears the set vehicle speed and cancels cruise control. Cruise control is prohibited until the power switch is turned off.
    1. Open or short in stop light switch circuit
    2. Malfunction in stop light switch input circuit
    3. Malfunction in cruise control cancel circuit
    4. Malfunction in the electronically controlled brake system
    5. Communication malfunction between skid control ECU (brake booster with master cylinder assembly) and hybrid vehicle control ECU assembly
    6. Malfunction in the millimeter wave radar sensor assembly
    7. Beam axis of millimeter wave radar sensor assembly misaligned
    8. Malfunction in brake hold system
    		 Cruise Control Malfunction Visit Your Dealer Illuminates Does not illuminate Sounds
    When the following condition (s) occurs while the vehicle is in motion during dynamic radar cruise control, the system clears the set vehicle speed and cancels cruise control. Control is prohibited until the dynamic radar cruise control system is turned off and turned on again. Also, cruise control is prohibited until system returns to normal from the following condition.
    1. Millimeter wave radar sensor assembly dirty
    2. Forward recognition camera dirty

    HINT: 
    It is possible that the system has entered fail-safe mode due to snow or water on the front grille.    		 Radar Cruise Control Unavailable See Owner's Manual Illuminates Does not illuminate Sounds
    When the following condition (s) occurs while the vehicle is in motion during dynamic radar cruise control, the system clears the set vehicle speed and cancels cruise control. Control is prohibited until the dynamic radar cruise control system is turned off and turned on again. Also, cruise control is prohibited until system returns to normal from the following condition.
    1. When vehicle-to-vehicle distance measurement is extremely unstable due to bad weather
    2. Brake control by the dynamic radar cruise control system is temporarily unavailable
    3. Malfunction in the forward recognition camera or the forward recognition camera is temporarily unavailable
    		 Radar Cruise Control Unavailable Illuminates Does not illuminate Sounds
    When the following condition (s) occurs while the vehicle is in motion during dynamic radar cruise control, cruise control (set vehicle speed is held) is canceled.
    1. VSC operates
    2. TRAC operates for a certain period of time
    3. Parking support brake operates
    4. Drive start control is performed
    5. Electric parking brake is applied
    6. TRAC/VSC is turned off
    7. Pre-collision system operates
    		 - Does not illuminate Illuminates -
    When the following condition (s) occurs while the vehicle is stopped on hold, cruise control is canceled. (w/ Full-Speed Range Following Function)
    1. Open or short in stop light switch circuit
    2. Malfunction in stop light switch input circuit
    3. Malfunction in cruise control cancel circuit
    4. Malfunction in the electronically controlled brake system
    5. Communication malfunction between skid control ECU (brake booster with master cylinder assembly) and hybrid vehicle control assembly
    6. Malfunction in the millimeter wave radar sensor assembly
    7. Beam axis of millimeter wave radar sensor assembly misaligned
    8. Malfunction in brake hold system
    9. Millimeter wave radar sensor assembly dirty
    10. When vehicle-to-vehicle distance measurement is extremely unstable due to bad weather
    11. Brake control by the dynamic radar cruise control system is temporarily unavailable
    12. Malfunction in the forward recognition camera or the forward recognition camera is temporarily unavailable
    		 Cruise Control Fault Press Brake to Deactivate Visit Your Dealer Illuminates Does not illuminate Sounds
    When the following condition (s) occurs while the vehicle is stopped on hold, cruise control is canceled. (w/ Full-Speed Range Following Function)
    1. Driver seat belt is unfastened
    2. Driver door is opened
    3. Vehicle is stopped for a long period of time
    4. Vehicle is stopped on a steep hill
    		 Radar Cruise Control Unavailable Press Brake to Resume Driving Does not illuminate Illuminates -
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