2008 Jeep Commander Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2008 Jeep Commander 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 Jeep Commander 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 Jeep Commander 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 are the initial diagnostic steps to troubleshoot the non-functional cruise control in a 2008 Jeep Commander?

When faced with a non-functional cruise control in your 2008 Jeep Commander, it's essential to adopt a systematic diagnostic approach. Begin by checking the interior fuse panel for any blown fuses, as this is a common and easily fixable issue that can disrupt the cruise control system. If the fuses are intact, the next step is to inspect the brake switch, which plays a crucial role in the operation of cruise control; a malfunctioning brake switch can prevent the system from engaging. For further assistance, consult your vehicle's manual to locate the fuse box and understand the specific fuses related to the cruise control. By following these initial steps, you can effectively narrow down the potential causes of the problem and determine whether a simple fix is possible before considering more complex repairs.

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

When troubleshooting cruise control issues in a 2008 Jeep Commander, it's essential to consider several common problems that could be at play. One of the primary culprits is a faulty brake light switch, which can prevent the cruise control from engaging since the system is designed to deactivate when the brakes are applied. Additionally, a defective speed sensor may disrupt the communication between the vehicle's speed control system and the engine, leading to failure in cruise control functionality. It's also wise to check for a blown fuse in the cruise control system, as this can halt operation entirely. Furthermore, vacuum leaks in the engine can significantly impact the cruise control's performance, so identifying and repairing any leaks is crucial. Lastly, a malfunctioning cruise control module may require replacement to restore proper operation. By systematically addressing these potential issues, you can effectively troubleshoot and resolve cruise control problems in your Jeep Commander.

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

Addressing a non-functioning cruise control in a 2008 Jeep Commander should be treated with a sense of urgency, as it can significantly impact both safety and vehicle performance. While it may not seem like an immediate emergency, the cruise control system plays a crucial role in maintaining a steady speed, which is particularly beneficial during long drives. A malfunction could indicate deeper issues within the vehicle's electronic or engine control systems, potentially leading to more severe problems if left unchecked. Moreover, driving without a functioning cruise control can increase driver fatigue and reduce fuel efficiency, making it less economical for long trips. For those inclined to tackle this issue themselves, it is essential to conduct a thorough inspection of the cruise control components and related systems. However, if the problem persists or if you are unsure about the diagnosis, consulting a qualified mechanic is advisable to prevent further damage and ensure the vehicle operates safely and efficiently. Prioritizing the repair of the cruise control system not only enhances your driving experience but also safeguards your well-being on the road.

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