Cruise control

Cruise control in the fourth-generation Lexus GS (2016–2020) makes longer journeys more comfortable by maintaining a constant speed without using the accelerator. This section explains simple operation and adjustment of the speed, as well as how to cancel and resume the function safely. Special notes cover the system's limitations and when it should be switched off due to road or weather conditions. In this way, the system becomes a useful aid that must be used responsibly.

Summary of Functions

Use cruise control to maintain a set speed without pressing the accelerator pedal.

1. 1
   Set speed
2. 2
   Warning lights
3. 3
   Cruise control switch

Setting the speed

1. 1
   Press the "ON/OFF" button to turn on the cruise control.

   The cruise control indicator light then illuminates.

   Press the button again to turn off the cruise control.

2. 2
   Accelerate or decelerate to the desired speed, then push the lever down to set the speed.

   The "SET" indicator light for the cruise control then illuminates.

   Control is set to the speed you are driving at when you release the lever.

   

Changing the Set Speed

Operate the lever until the desired speed is set.

1. 1
   Increase speed
2. 2
   Decrease speed

Fine adjustment: Briefly move the lever in the desired direction.

Large adjustment: Move the lever in the desired direction and hold it there.

The set speed can be increased or decreased as follows. Fine adjustment: Each lever operation changes the set speed by approx. 1.6 km/h.

Large adjustment: The set speed continues to increase or decrease until the lever is released.

Canceling and Resuming Cruise Control

1. 1
   Pull the lever toward you to cancel cruise control.

   The set speed is also canceled when the brakes are applied.

2. 2
   Push the lever up to resume cruise control.

   Resuming is only possible at a speed of approx. 40 km/h or higher.

■ Conditions for Activating Cruise Control

• The shift lever is in "D".
• The shift selector is set to "D" range or to "4" range or higher.
• The speed is above approx. 40 km/h.

■ Accelerating After the Speed Has Been Set

• The vehicle can be accelerated normally. After accelerating, the set speed is resumed.
• The set speed can be increased without turning off cruise control. To do so, accelerate to the desired speed, then push the lever down to set the new speed.

■ Automatic Cancellation of Cruise Control

Cruise control will no longer maintain the set speed if any of the following situations occur.

• The actual speed falls more than approx. 16 km/h below the preset speed.

  In this case, the stored speed setting is cleared.

• The actual speed is less than approx. 40 km/h.
• VSC is activated.
• TRC is activated for a certain period of time.
• The VSC or TRC system is turned off by pressing the VSC OFF switch.

■ When the Cruise Control Warning Message Is Displayed on the Multi-Information Display

Press the "ON/OFF" button once to turn the system off, then press it again to turn it back on.

If the set speed cannot be set, or cruise control turns off again right after being activated, a malfunction of the cruise control system may exist. Have the vehicle inspected by a Lexus dealer or authorized repairer, or another qualified and properly equipped workshop.

WARNING

■ Preventing Accidental Operation of Cruise Control

Turn cruise control off with the "ON/OFF" button when it is not in use.

■ Situations Where Cruise Control Is Not Suitable

Do not use cruise control in the following situations.

Otherwise, you may lose control of the vehicle and cause an accident that could result in death or serious injury.

• In heavy traffic
• On roads with sharp curves
• On winding mountain roads
• On slippery road surfaces, e.g. in rain, ice or snow
• On steep downhill grades. The actual speed may exceed the set speed on steep downhill grades.
• When towing a trailer or providing towing assistance with your vehicle

The cruise control system in the Lexus GS GRL1 allows you to maintain a constant speed without having to operate the accelerator pedal. This function increases comfort on long drives and helps you drive smoothly. The system is easy to operate and offers precise adjustment options.

The Lexus GS 2016–2020 shows that it excels not only with high-tech solutions but also with proven systems of the highest quality. This makes every drive in the sports sedan a relaxed experience.