2019 Jeep Grand Cherokee Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2019 Jeep Grand Cherokee 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 2019 Jeep Grand Cherokee 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 2019 Jeep Grand Cherokee 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 steps to diagnose the cruise control issue in a 2019 Jeep Grand Cherokee?

When diagnosing a cruise control issue in a 2019 Jeep Grand Cherokee, it's essential to adopt a systematic diagnostic approach that prioritizes simpler checks before moving on to more complex assessments. Begin by inspecting the cruise control fuse, as a blown or damaged fuse can easily disrupt the system's functionality. Next, examine the cruise control buttons on the steering wheel to ensure they are operational and not stuck, as this can prevent engagement. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying issues within the vehicle's onboard computer. Additionally, inspect the speed sensors, which are critical for the cruise control system's performance, and test the brake pedal switch, since a malfunction here can inhibit cruise control activation. Finally, take a close look at the wiring connections associated with the cruise control system for any signs of damage or loose connections. If these steps do not resolve the issue, seeking assistance from a professional mechanic is advisable, as they possess the expertise to diagnose and repair more complex problems effectively. By following this structured approach, you can efficiently identify and potentially resolve cruise control issues in your Jeep Grand Cherokee.

What are the common problems that could cause the cruise control to stop working in a 2019 Jeep Grand Cherokee?

When the cruise control in a 2019 Jeep Grand Cherokee ceases to function, it can be frustrating, but understanding the common problems can help you diagnose the issue. One frequent culprit is a faulty brake light switch, which is crucial for the cruise control system as it disengages the system when the brake pedal is pressed. If this switch is malfunctioning, it may prevent the cruise control from engaging at all. Another potential issue is a malfunctioning speed sensor; if the sensor fails to provide accurate speed readings, the cruise control cannot maintain a constant speed, leading to its failure. Additionally, a blown fuse in the vehicle's electrical system can disrupt the cruise control operation, so checking the fuses is a simple yet effective troubleshooting step. Problems with the throttle control system, such as a faulty throttle position sensor or issues with the throttle body, can also impact cruise control functionality. Lastly, a malfunctioning cruise control module may be the root cause of the problem, and replacing it could restore the system's operation. By systematically checking these components, you can effectively troubleshoot and potentially resolve the cruise control issues in your Jeep Grand Cherokee.

How urgent is it to address the malfunctioning cruise control in a 2019 Jeep Grand Cherokee?

When it comes to a malfunctioning cruise control system in a 2019 Jeep Grand Cherokee, the urgency to address the issue cannot be overstated. A faulty cruise control can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, which significantly increases the risk of accidents. For DIY enthusiasts, understanding the potential consequences of neglecting this problem is crucial. Ignoring the symptoms may not only compromise your safety but also that of others on the road. Moreover, a malfunctioning system can lead to further mechanical issues, resulting in more extensive and costly repairs down the line. Therefore, it is essential to prioritize the inspection and repair of the cruise control system, either by consulting a qualified mechanic or by following reliable DIY resources, to ensure your vehicle operates safely and effectively. Taking prompt action will help maintain control over your vehicle's speed and enhance your overall driving experience.

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