2019 Cadillac ATS Cruise Control Isn't Working

Troubleshooting Common Issues with Cruise Control in Your 2019 Cadillac ATS 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 Cadillac ATS 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 Cadillac ATS 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-functioning cruise control in a 2019 Cadillac ATS?

When faced with a non-functioning cruise control in a 2019 Cadillac ATS, it's crucial to adopt a systematic diagnostic approach. Start by checking the cruise control fuse in the fuse box; a blown fuse can often be the simplest explanation for the malfunction. Next, verify that the cruise control settings are correctly configured according to the vehicle's manual, as incorrect settings can prevent the system from engaging. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying issues that may not be immediately visible. Additionally, inspect the cruise control buttons on the steering wheel for any signs of damage or malfunction, as these controls are essential for operation. Finally, test the brake pedal switch, since the cruise control system is designed to disengage when the brake is applied; a faulty switch could be the culprit behind the problem. By following these steps, you can effectively diagnose and potentially resolve the cruise control issue in your Cadillac ATS.

What are the common problems that could cause the cruise control to stop working in a 2019 Cadillac ATS?

When troubleshooting the cruise control system in a 2019 Cadillac ATS, 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 can disrupt the engagement and disengagement of the cruise control. Additionally, issues with the speed sensor can result in incorrect speed readings, causing the system to malfunction. A blown fuse is another frequent issue that can prevent the cruise control from operating correctly. Furthermore, problems with the throttle control system can hinder the cruise control's ability to maintain the desired speed. Lastly, any underlying electrical problems, such as wiring issues or a malfunctioning control module, can significantly impact the functionality of the cruise control. By identifying and addressing these common problems, you can effectively restore the cruise control system in your Cadillac ATS.

How urgent is it to address the malfunctioning cruise control in a 2019 Cadillac ATS?

Addressing a malfunctioning cruise control in your 2019 Cadillac ATS is crucial for both safety and vehicle performance. When cruise control fails, it can lead to unpredictable acceleration or deceleration, significantly increasing the risk of accidents on the road. Moreover, a malfunctioning system detracts from the overall driving experience, making long trips less enjoyable and more stressful. Ignoring these symptoms can also lead to higher fuel consumption and may cause further damage to other vehicle components, resulting in costly repairs down the line. Therefore, it is essential to prioritize the diagnosis and repair of cruise control issues to ensure your vehicle operates safely and efficiently. Taking prompt action not only enhances your driving comfort but also protects your investment in the vehicle.

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2019 Cadillac ATS Cruise Control Issues & Repair Options