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Home >> Lexus >> 2021 >> RC F Base >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 8 (Cruise Control System - Diagnostics - Introduction) >> Cruise Control System >> Road Test [09/2014 - 11/2017] >> Road Test [09/2014 - 11/2017]
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Road Test [09/2014 - 11/2017]

WARNING: This page is about a different car, the 2017 Lexus RC F, 2016 Lexus RC F, and 2015 Lexus RC F. However, it is still accessible from the selected car via links, so may be relevant.
  1. PROBLEM SYMPTOM CONFIRMATION 
    1. Inspect the SET function.
      1. Turn the cruise control system on using the cruise control switch (ON/OFF button).
        GTY428273Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *1 Cruise Control Indicator
      2. Check that the cruise control indicator illuminates on the combination meter assembly.
      3. Drive at a speed between approximately 40 km/h (25 mph) and 200 km/h (124 mph).
      4. Push the cruise control switch to -/SET.
        GTY431928Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *1 Cruise Control SET Indicator
      5. Check that the cruise control SET indicator illuminates at this time.
      6. After releasing the switch, check that the vehicle maintains the set speed.
    2. Inspect the + (ACCEL) function.
      GTY438526Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Turn the cruise control system on using the cruise control switch (ON/OFF button).
      2. Drive at a speed between approximately 40 km/h (25 mph) and 200 km/h (124 mph).
      3. Push the cruise control switch to -/SET.
      4. Check that vehicle speed increases while the cruise control switch is pushed to +/RES, and that the vehicle maintains the newly set speed when the switch is released.
      5. Push the cruise control switch to +/RES and then release it immediately. Check that vehicle speed increases by approximately 1.6 km/h (1 mph) (tap-up control).
    3. Inspect the - (COAST) function.
      GTY453606Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Turn the cruise control system on using the cruise control switch (ON/OFF button).
      2. Drive at a speed between approximately 40 km/h (25 mph) and 200 km/h (124 mph).
      3. Push the cruise control switch to -/SET.
      4. Check that vehicle speed decreases while the cruise control switch is pushed to -/SET, and the vehicle maintains the newly set speed when the switch is released.
      5. Push the cruise control switch to -/SET, and then release it immediately. Check that vehicle speed decreases by approximately 1.6 km/h (1 mph) (tap-down control).
    4. Inspect the CANCEL function.
      1. Turn the cruise control system on using the cruise control switch (ON/OFF button).
        GTY453606Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Drive at a speed between approximately 40 km/h (25 mph) and 200 km/h (124 mph).
      3. Push the cruise control switch to -/SET.
      4. When any of the following are performed, check that control of vehicle speed by the cruise control system is canceled and that the normal driving mode (no control of vehicle speed by the cruise control system) resumes.
        • Depressing the brake pedal.
        • Moving the shift lever from D to any other position.
        • Selecting the 3rd, 2nd or 1st range using the shift paddle switch assembly with the shift lever in D.
        • Pulling the cruise control switch to CANCEL.
        • Turning the cruise control system off using the cruise control switch (ON/OFF button).
        GTY442033Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a ON/OFF
        *b CANCEL
    5. Inspect the RES (RESUME) function.
      1. Turn the cruise control system on using the cruise control switch (ON/OFF button).
        GTY453606Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Drive at a speed between approximately 40 km/h (25 mph) and 200 km/h (124 mph).
      3. Push the cruise control switch to -/SET.
      4. Cancel control of vehicle speed by the cruise control system by performing any of the above operations (other than turning the cruise control system off using the cruise control switch (ON/OFF button)).
      5. After pushing the cruise control switch to +/RES while driving the vehicle at a speed of more than 40 km/h (25 mph), check that the vehicle speed set prior to cancellation is resumed.
        GTY454894Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002