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Home › Lexus › 2008 › LS 600hL › Repair and Diagnosis › Accessories & Equipment › Cruise Control Systems › Cruise Control › Dynamic Radar Cruise › Road Test

Road Test

HINT:

The dynamic radar cruise control system has 2 cruise control modes: the constant speed control mode and vehicle-to-vehicle distance control mode.

  1. INSPECT SET SWITCH 
    1. Push the cruise control switch ON.
    2. Drive at the desired speed (45 km/h (28 mph) or higher).
    3. Press the cruise control switch to SET/COAST.
    4. Check that the vehicle cruises at the desired speed.
    Fig 1: Inspecting SET Function
    G04951406Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT "+" SWITCH 
    1. Push the cruise control switch ON.
    2. Drive at the desired speed (45 km/h (28 mph) or higher).
      Fig 2: Inspecting ACC (ACCEL) Function
      G04951407Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Press the cruise control switch to SET/COAST.
    4. Check that vehicle speed increases while the cruise control switch is pushed to RES/ACC, and that the vehicle cruises at the set speed when released.
    5. Vehicle-to-vehicle distance control mode: Momentarily press the control switch to RES/ACC, and then immediately release it Check that the vehicle speed increases by about 1 km/h or 1 mph (Tap-up function).
    6. Constant speed control mode:

      Momentarily press the control switch to RES/ACC, and then immediately release it. Check that the vehicle speed increases by about 1.6 km/h (1 mph) (Tap-up function).

  3. INSPECT "-" SWITCH 
    1. Push the cruise control switch ON.
    2. Drive at the desired speed (45 km/h (28 mph) or higher)
    3. Press the cruise control switch to SET/COAST.
    4. Check that vehicle speed decreases while the cruise control switch is pressed to SET/COAST, and the vehicle cruises at the set speed when released.
      Fig 3: Inspecting COAST Function
      G04951406Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Vehicle-to-vehicle distance control mode. Momentarily press the control switch to SET/ COAST, and then immediately release it. Check that the vehicle speed decreases by about 1 km/h or 1 mph (Tap-down function).
    6. Constant speed control mode" Momentarily press the control switch to SET/ COAST, and then immediately release it. Check that the vehicle speed decreases by about 1.6 km/h (1 mph) (Tap-down function).
  4. INSPECT CANCEL SWITCH 
    1. Push the cruise control switch ON
    2. Drive at the desired speed (45 km/h (28 mph) or higher)
    3. Press the cruise control switch to SET/COAST.
    4. When operating one of the following, check that the cruise control system is canceled
    • Depressing the brake pedal
    • Moving the shift lever to any position except D or S (8th, 7th, 6th, 5th and 4th gears)
    • Pushing the cruise control switch OFF
    • Pulling the cruise control switch to CANCEL
    Fig 4: Inspecting CANCEL Function
    G04951409Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. INSPECT RES (RESUME) SWITCH 
    1. Push the cruise control switch ON.
    2. Drive at the desired speed (45 km/h (28 mph) or higher)
    3. Press the cruise control switch to SET/COAST
      Fig 5: Inspecting RES (RESUME) Function
      G04951407Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Cancel the cruise control system by performing any of the operations below.
      • Depressing the brake pedal
      • Moving the shift lever to any position except D or S (8th, 7th, 6th, 5th and 4th gears)
      • Pulling the cruise control switch to CANCEL
    5. After the cruise control switch is pressed to RES/ ACC at a driving speed of more than 45 km/h (28 mph), check that the vehicle restores the speed before the cancellation.
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