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Why is my cruise control not working on my Toyota?


Having your cruise control malfunction can be frustrating, especially during long drives when it’s most needed. Cruise control is a convenient feature that allows you to maintain a steady speed without keeping your foot on the accelerator. If your Toyota’s cruise control isn’t working, there could be several reasons behind the issue. In this article, we’ll explore the most common causes and what you can do to address them.


1. Faulty Cruise Control Switch


The cruise control switch is the interface you use to activate and adjust the system. If this switch is damaged or worn out, it may fail to send the necessary signals to the cruise control system. Over time, dirt, debris, or electrical issues can cause the switch to malfunction.


2. Blown Fuse


Like many electrical components in your vehicle, the cruise control system relies on a fuse to function. If the fuse responsible for the cruise control system is blown, the system will stop working entirely. Checking and replacing a blown fuse is a relatively simple fix.


3. Brake Pedal Issues


Your Toyota’s cruise control system is designed to deactivate when you press the brake pedal. If the brake pedal switch is faulty or misaligned, it may send a constant signal to the cruise control system, preventing it from engaging. This is a common issue that can be resolved by adjusting or replacing the brake pedal switch.


4. Speed Sensor Problems


The cruise control system relies on the vehicle’s speed sensor to maintain a consistent speed. If the speed sensor is malfunctioning or providing inaccurate readings, the cruise control system may not work properly. A diagnostic test can help identify if the speed sensor is the culprit.


5. Throttle Control Issues


Modern Toyotas often use electronic throttle control systems. If there’s an issue with the throttle body or the electronic control unit (ECU), the cruise control system may fail to engage. This type of problem typically requires professional diagnostics and repair.


6. Wiring or Electrical Problems


Loose or damaged wiring can disrupt the communication between the cruise control components. Electrical issues can be challenging to diagnose without the proper tools, so it’s best to consult a professional mechanic if you suspect this is the cause.


What Should You Do Next?


If your cruise control isn’t working, here are some steps you can take:



  • Check the fuse box for a blown fuse and replace it if necessary.

  • Inspect the cruise control switch for visible damage or wear.

  • Test the brake pedal switch to ensure it’s functioning correctly.

  • Schedule a diagnostic test to check the speed sensor and throttle control system.

  • Consult a professional mechanic to inspect the wiring and electrical components.


Conclusion


While some cruise control issues can be resolved with simple fixes, others may require professional attention. At Kevin’s Autos, we specialize in diagnosing and repairing all types of vehicle issues, including cruise control malfunctions. If you’re in the Mountain View, CA area, don’t hesitate to give us a call at (650) 965-7112 or visit our shop for expert assistance. Let us help you get back on the road with a fully functional cruise control system!


Frequently Asked Questions

Why is my cruise control unavailable on my Toyota?


When your Toyota displays ``Radar Cruise Control Unavailable,'' it typically indicates an issue with the radar sensor system that supports adaptive cruise control. Here are some common reasons for this message: Obstruction: The radar sensor, usually located in the front grille, may be blocked by dirt, snow, or ice.



Why does my cruise control say temporarily unavailable?


If any of the radars or the camera becomes blocked or misaligned, an "ADAPTIVE CRUISE TEMPORARILY UNAVAILABLE" message may be displayed and the cruise will be disabled.



How do I get my cruise control to work?


To use cruise control, you can typically press buttons on your steering wheel to activate the system, set your speed, adjust your speed up or down within the system, and deactivate the system. Using cruise control lets you set a speed for your car to maintain even if you take your foot off the gas.



Can I fix cruise control to my car?


It can be installed by anyone who knows what is accelerator pedal, and the process is simple and straightforward. The best part? If you decide to sell your car or upgrade to a new one, you can easily remove the cruise control system and transfer it to your new vehicle.



How do I reset my cruise control?


How to Reset Adaptive Cruise Control

  1. Step 1: Consult Your Vehicle's Owner's Manual.
  2. Step 2: Start Your Vehicle.
  3. Step 3: Access the ACC Menu.
  4. Step 4: Select 'Reset' or 'Default'
  5. Step 5: Press and Hold the Reset Button.
  6. Step 6: Confirm the Reset.
  7. Step 7: Monitor System Reset.
  8. Step 8: Verify ACC Reset.



How do I know if my cruise control switch is bad?


A malfunctioning switch can show both symptoms. It may not turn on at all or does not turn off even after applying the brake. In that case, the car will continue accelerating, which may lead to an accident. Also, continuous acceleration may cause the related components to overheat and then get damaged permanently.



How much does it cost to fix cruise control button?


The average cost for a Cruise Control Switch Replacement is between $220 and $235. Labor costs are estimated between $57 and $72 while parts are typically priced around $163. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.



How do I know if my cruise control fuse is blown?


You can check to see if a fuse is blown by checking the fuse box and locate the fuse that corresponds to your cruise control. You'll need to remove the fuse and perform a visual inspection to see if a filament on the inside is broken, indicating that the fuse is bad. If the filament is intact it's most likely fine.



What does it cost to fix cruise control?


The average cost for a Cruise Control Module Replacement is between $630 and $643. Labor costs are estimated between $50 and $63 while parts are typically priced around $581. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.



What would cause the cruise control to stop working?


These issues could be something as simple as a loose wire or connector, or something more complicated like a damaged alternator, starter, or electrical short circuit. Problems with your vehicle's electrical system can be detected through a variety of warning signs.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.