Lexus GS F Cruise Control Isn't Working

Troubleshooting Common Issues with the Cruise Control System in Your Lexus GS F and How to Fix Them

Find Repair Location
Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a Lexus GS F cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty or malfunctioning sensor can lead to incorrect readings, causing issues with engine performance or other systems relying on accurate data.
  • Control Module: A faulty control module can lead to erratic vehicle behavior or failure of various electronic systems due to improper signal processing.
  • Throttle: A faulty throttle body or a defective accelerator pedal position sensor may be causing inconsistent throttle response.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What are the best Lexus repair shops?

RepairPal Certified shops can diagnose and repair your Lexus GS F electronics and electrical issues. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
30 Certified Locations
Shop Image

Tuffy Tire & Auto Service Center - Grandview

4.7
(85)
2.39 mi
1524 W 5th Ave
Columbus, OH
Open
Closes 5:00 PM
Call
Shop Image

Excite Auto Repair & Towing

4.4
(15)
5.94 mi
3430 Westerville Road
Columbus, OH
Open
Closes 6:00 PM
Call
Shop Image

All In Auto Service

4.9
(25)
6.56 mi
5200 Fisher Road
Columbus, OH
Open
Closes 6:00 PM
Call
Shop Image

Tuffy Tire & Auto Service - Grove City

4.4
(520)
6.67 mi
2131 Stringtown Rd
Grove City, OH
Open
Closes 6:00 PM
Call
See All 30 Locations

How much does it cost to fix a Lexus GS F cruise control isn't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

When the vehicle speed sensor fails or the wiring harness prevents signal transmission, the speedometer is the first thing that will stop functioning properly. This can be an intermittent issue where the speedometer only works occasionally, the speedometer may cease all function, or the speedometer may read erratically or incorrectly. Also, the traction control and anti lock brake warning lights specific to each vehicle may be illuminated, depending on the design of those systems. You may notice the vehicle hesitate to accelerate, cruise control will not function properly, and the vehicle may not shift properly through all of the gears.

In the event that a wheel speed sensor fails, the ABS, traction control system (TCS) and manufacturer specific stability control system lights will illuminate, informing the driver that the systems are disabled. The vehicle will be more prone to tire slip, and normal driving patterns may need to be adjusted to correct for the loss of computer control. On older vehicle's, the speedometer can be affected, causing illumination of the check engine light as well.

The cruise control switch can cause complete failure of the cruise control feature, but in a lucky scenario only partial functionality will be lost. This means that the cruise control may come on, but that it will not increase in speed automatically, or the cancel button does not work leading the driver to cancel cruise control with the foot brake. In some vehicles, the cruise control light may illuminate, or a warning message may be displayed due to lack of functionality.

Troubleshooting Cruise Control Issues in a Lexus GS F

When troubleshooting cruise control issues in your Lexus GS F, begin by checking the most accessible components. Start with the fuses; a blown fuse can often be the simplest explanation for a malfunction. Next, inspect the brake light and brake switch, as a faulty brake light can inadvertently disable the cruise control system. If these initial checks do not resolve the issue, examine the wiring connections for any signs of wear or damage that could affect electrical flow. Should these steps fail to identify the problem, consider the control module and sensors, as these are more complex components that may require professional diagnostics. By following this structured approach, you can efficiently narrow down the potential causes of your cruise control issues and take the necessary steps to restore functionality.

Troubleshooting Cruise Control Issues in a Lexus GS F

When troubleshooting cruise control issues in your Lexus GS F, it's essential to understand the common problems that may arise. A primary culprit is often the control module, which is vital for regulating the cruise control system. If this component fails, you may find that your cruise control is unresponsive. Additionally, sensor or switch malfunctions can disrupt the necessary signals required for the system to operate correctly. Pay attention to throttle actuation as well; any issues here can prevent the cruise control from maintaining a steady speed, as the throttle is responsible for controlling vehicle speed. Electrical problems, such as blown fuses or faulty wiring, can also lead to cruise control failures, making it crucial to inspect these components. If you encounter error messages like "Radar Cruise Control Unavailable," this may indicate issues with the radar system or related components, which should be addressed promptly. By understanding these common failure modes, you can better diagnose and potentially resolve cruise control issues, ensuring a safer and more convenient driving experience in your Lexus GS F.

Why is it Critical to Fix Non-Functional Cruise Control in a Lexus GS F?

Neglecting a malfunctioning cruise control system in your Lexus GS F can lead to serious safety concerns, particularly during long drives where maintaining a steady speed is essential. A faulty cruise control can distract drivers, increasing the risk of accidents. Additionally, the convenience of cruise control significantly enhances the driving experience by reducing fatigue on extended trips; without it, drivers may find themselves constantly adjusting their speed, which can be tiring and inconvenient. Furthermore, a non-functional cruise control can negatively affect the vehicle's resale value, as prospective buyers often shy away from cars with inoperable features. Addressing these issues not only restores functionality but also provides an opportunity to diagnose any underlying problems that may affect other systems in the vehicle. Since the cruise control system is interconnected with critical components like the Engine Control Unit, sensors, and brake switches, ensuring its proper operation is vital for maintaining the overall integrity and reliability of your Lexus GS F. Therefore, it is crucial to prioritize repairs to the cruise control system to enhance safety, comfort, and vehicle performance.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.