2019 GMC Savana 2500 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2019 GMC Savana 2500 and How to Fix Them

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Reviewed by
Bo Fader
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 GMC Savana 2500 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 GMC Savana 2500 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.

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 GMC Savana 2500?

To effectively diagnose a cruise control issue in a 2019 GMC Savana 2500, it's essential to adopt a systematic approach that begins with the simplest potential problems before progressing to more complex diagnostics. Start by checking the cruise control fuse, as a blown fuse can easily disrupt the system's functionality. Next, inspect the cruise control buttons on the steering wheel to ensure they are operational, since faulty buttons can lead to engagement issues. Utilizing an OBD-II scanner to scan for error codes is a crucial step, as these codes can reveal specific malfunctions within the cruise control system. Following this, examine the vehicle speed sensor, as a malfunction here can prevent the cruise control from activating. Additionally, the brake light switch must be checked, since a defective switch can disable the cruise control entirely. Finally, inspect the wiring and connections associated with the cruise control system for any signs of damage or corrosion, as these can also contribute to operational failures. By following this structured diagnostic approach, you can efficiently identify and address the root cause of the cruise control issue in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2019 GMC Savana 2500?

When troubleshooting the cruise control system in a 2019 GMC Savana 2500, it's essential to understand the common problems that may lead to its failure. One of the primary culprits is a faulty brake pedal switch, which is crucial for disengaging the cruise control when the brake is applied. If this switch malfunctions, it can prevent the system from engaging properly. Additionally, issues with the speed sensor can disrupt the vehicle's ability to maintain a constant speed, leading to cruise control failure. Another potential issue is a blown fuse within the cruise control system, which can completely disable its functionality. Furthermore, a defective cruise control module may hinder communication between the system and the vehicle, resulting in operational problems. Lastly, vacuum leaks can also affect the cruise control's performance, causing it to stop working. Identifying these issues can help you effectively diagnose and address the problem, ensuring your cruise control system operates smoothly once again.

How urgent is it to address the malfunctioning cruise control in a 2019 GMC Savana 2500?

Addressing a malfunctioning cruise control in your 2019 GMC Savana 2500 is crucial for several reasons. First and foremost, a faulty cruise control system can lead to unexpected acceleration or deceleration, creating significant safety hazards on the road. This unpredictability not only endangers the driver but also poses risks to other road users. Additionally, neglecting this issue can result in further damage to the vehicle's systems, leading to more extensive and costly repairs down the line. By addressing the malfunction promptly, you can save on potential repair costs and ensure that your vehicle remains in optimal condition. Furthermore, a properly functioning cruise control enhances the overall driving experience, particularly during long journeys, where comfort and convenience are paramount. Therefore, it is advisable to prioritize the repair of your cruise control system to maintain safety, prevent additional damage, and enjoy a more comfortable ride in your GMC Savana 2500.

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2019 GMC Savana 2500 Cruise Control Issues & Repairs