2021 Cadillac XT5 Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2021 Cadillac XT5

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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 2021 Cadillac XT5 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 2021 Cadillac XT5 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 steps should I take to diagnose the cruise control issue in my 2021 Cadillac XT5?

To effectively diagnose the cruise control issue in your 2021 Cadillac XT5, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse located in the fuse box, as a blown fuse is a common and easily fixable problem that can disrupt functionality. Next, examine the cruise control buttons on your steering wheel to ensure they are operational, as faulty buttons can prevent the system from engaging. Following this, verify the speed sensor's performance, since it is essential for maintaining a consistent speed; any malfunction here can directly impact cruise control operation. Utilizing an OBD-II scanner to check for error codes can provide valuable insights into specific issues affecting the system. Additionally, ensure that all brake lights are functioning properly, as malfunctioning lights can inadvertently disable cruise control. If your vehicle has vacuum lines, inspect them for leaks, particularly in older models where this can be a common issue. If these steps do not resolve the problem, it may be time to consult a professional mechanic for a comprehensive diagnosis and repair. By following this structured approach, you can efficiently identify and address the cruise control issue in your Cadillac XT5.

What are the common problems that could cause the cruise control to stop working in a 2021 Cadillac XT5?

When dealing with cruise control issues in a 2021 Cadillac XT5, it's essential to understand the common problems that may be at play. One frequent culprit is faulty speed sensors, which can hinder the system's ability to accurately gauge the vehicle's speed, leading to malfunction. Additionally, a malfunctioning brake light switch can disrupt the cruise control, as it is designed to deactivate when the brakes are engaged. Another potential issue could be blown fuses related to the cruise control system, which would require replacement to restore functionality. Throttle control malfunctions can also interfere with the system's ability to maintain a steady speed, while problems with the electronic control module, which oversees various vehicle functions, can lead to cruise control failure. If you experience issues with your cruise control, it's advisable to conduct a thorough inspection or consult a qualified mechanic to pinpoint and resolve the specific problem effectively.

How urgent is it to address the non-functioning cruise control in a 2021 Cadillac XT5?

When it comes to a non-functioning cruise control in your 2021 Cadillac XT5, understanding the urgency of the situation is crucial for both safety and vehicle performance. While it may not seem like an immediate emergency, neglecting this issue can lead to more significant problems down the line. A malfunctioning cruise control system can indicate underlying issues within the vehicle's electronic or mechanical systems, which, if left unaddressed, could compromise your driving experience and safety. For DIY enthusiasts, it’s essential to recognize that the cruise control system is designed to enhance comfort and efficiency, particularly on long drives. However, if you notice irregularities, such as the system not engaging or disengaging unexpectedly, it’s advisable to investigate further. Ignoring these symptoms could not only lead to potential safety hazards but may also result in costly repairs if the problem escalates. Therefore, taking the time to diagnose and address the cruise control issue promptly can save you from future headaches and ensure your Cadillac XT5 remains safe and reliable on the road.

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