2008 Hyundai Tiburon Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2008 Hyundai Tiburon and How to Fix Them

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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 2008 Hyundai Tiburon cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty sensor can lead to incorrect readings, causing issues with engine performance or triggering warning lights on the dashboard.
  • Control Module: A faulty control module can result in 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 acceleration and poor engine 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.

How much does it cost to fix a 2008 Hyundai Tiburon 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.

If the cruise control refuses to turn on at all, the actuator could be at fault. Likewise, if the cruise control stays on but does not maintain a consistent speed, the problem could be a bad actuator. In extreme cases, a malfunctioning actuator could cause the throttle to stick and prevent the vehicle from slowing down. These symptoms may point to a bad actuator. They may also point to other problems with the cruise control and related systems.

What are the steps to diagnose the cruise control issue in a 2008 Hyundai Tiburon?

To effectively diagnose cruise control issues in your 2008 Hyundai Tiburon, start by inspecting the actuator and pulley assembly to ensure they are functioning correctly. Next, check the pulley assembly and the movement of the cables for any signs of wear or obstruction. Pay close attention to the cruise control lights on your dashboard; if the "cruise" light is illuminated but the "set" light is not, this could indicate a problem with the steering wheel switch, brake switch, or other related components. Additionally, inspect the LED bulbs in the taillights, as faulty bulbs can disrupt the cruise control system's operation. It’s also wise to verify that other essential components, such as the horn and brake lights, are working properly, and check specific fuses under the hood that may be linked to the cruise control system. Lastly, if you notice a Check Engine Light, consult the power train control module for any stored codes that could be affecting the cruise control functionality. By following this structured approach, you can efficiently identify and address the underlying issues affecting your vehicle's cruise control system.

How urgent is it to address the non-functioning cruise control in a 2008 Hyundai Tiburon?

Addressing the non-functioning cruise control in a 2008 Hyundai Tiburon is not just a matter of convenience; it is a critical safety concern that should be prioritized. A malfunctioning cruise control system can lead to erratic vehicle behavior, affecting acceleration and speedometer accuracy, which can compromise your driving experience and safety. Moreover, cruise control is particularly beneficial during long drives, as it helps maintain a steady speed, reducing driver fatigue and enhancing comfort. Ignoring this issue can result in more severe complications, including increased wear on the vehicle's components and potential safety hazards on the road. Therefore, it is essential to act promptly to diagnose and repair the cruise control system, ensuring that your vehicle operates efficiently and safely, allowing for a worry-free driving experience.

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