2008 Scion XD Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2008 Scion xD and How to Fix Them

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Reviewed by
Devin Cabugcal
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 Scion xD 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.

How much does it cost to fix a 2008 Scion xD 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.

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.

What steps should I take to diagnose the non-functioning cruise control in my 2008 Scion xD?

To effectively diagnose the non-functioning cruise control in your 2008 Scion xD, start with a systematic approach that prioritizes simpler checks before moving on to more complex diagnostics. Begin by inspecting the cruise control fuse in the fuse box, as a blown fuse is a common and easily fixable issue that can disrupt the system. Next, examine the cruise control buttons on the steering wheel for any signs of damage or sticking, as these can prevent the system from engaging. Following this, verify the functionality of the speed sensor, which is essential for maintaining a constant speed; a malfunctioning sensor can lead to cruise control failure. Additionally, check the brake pedal switch, which should disengage the cruise control when the brakes are applied; if this switch is faulty, it may cause the system to remain inactive. Inspect the throttle cable for wear or damage, as issues here can also impact cruise control performance. If these initial checks do not reveal the problem, use an OBD-II scanner to look for any error codes that could indicate specific issues within the cruise control system. If you still cannot identify the problem, it may be time to consult a mechanic for a professional diagnosis. By following this structured approach, you can efficiently troubleshoot and potentially resolve the cruise control issue in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2008 Scion xD?

When dealing with cruise control issues in a 2008 Scion xD, it's essential to understand the common problems that may be at play. One frequent culprit is a faulty brake pedal switch, which is designed to disengage the cruise control when the brake is pressed; if it malfunctions, it can prevent the system from engaging. Another potential issue is a defective speed sensor, which is crucial for relaying the vehicle's speed to the cruise control system; if this sensor fails, it can disrupt the entire operation. Additionally, a blown fuse in the cruise control circuit can halt functionality, making it a straightforward fix if you check and replace any damaged fuses. Vacuum leaks in the engine can also impact the cruise control's ability to maintain speed, so inspecting the vacuum lines for any leaks is a wise step. Lastly, a malfunctioning cruise control module itself may need attention, as it is the component that controls the system's operations. By systematically checking these areas, DIYers can effectively troubleshoot and resolve cruise control issues in their Scion xD.

How urgent is it to address the malfunctioning cruise control in a 2008 Scion xD?

When it comes to the malfunctioning cruise control in a 2008 Scion xD, the urgency of addressing the issue cannot be overstated. A malfunctioning cruise control system can lead to unexpected acceleration or deceleration, creating a significant safety hazard for both the driver and other road users. Ignoring these symptoms not only increases the risk of accidents but can also result in more extensive damage to the vehicle's components, leading to costly repairs down the line. Therefore, it is crucial to have the cruise control system inspected and repaired by a qualified mechanic as soon as possible. Taking prompt action not only ensures the safety of your driving experience but also helps maintain the overall health of your vehicle, preventing further complications that could arise from neglecting the issue.

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