Cadillac SRX Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Cadillac SRX and How to Fix Them

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
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25% chance it's the
Control Module
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a Cadillac SRX 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 Cadillac SRX 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.

Troubleshooting Cruise Control Issues in a Cadillac SRX

When troubleshooting cruise control issues in your Cadillac SRX, start by checking the simplest components first. Begin with the fuse box; a blown fuse can easily disrupt the cruise control system, and replacing it is a straightforward fix. Next, inspect the brake pedal switch, as a defective switch can prevent the cruise control from engaging. If these initial checks do not resolve the issue, examine the throttle sensor and throttle control system, as failures in these areas are common culprits. Additionally, if your model is older, consider inspecting the vacuum lines for any breaks that could affect functionality. Lastly, if the problem persists, it may be necessary to investigate the ABS system, as issues here can also interfere with cruise control operations. By following this diagnostic approach, you can systematically identify and address the root cause of your cruise control problems, potentially saving time and money on repairs.

What Could Cause the Cruise Control to Malfunction in a Cadillac SRX?

When dealing with cruise control malfunctions in a Cadillac SRX, it's essential to understand the common problems that may arise. One frequent issue is the failure of the control module, which can disrupt the communication between the cruise control system and other vehicle components. Additionally, sensor or switch failures can prevent the system from engaging properly. Throttle actuation problems are another potential culprit, as they can hinder the system's ability to maintain speed. It's also important to check for a blown fuse or a defective brake pedal switch, as these can directly impact cruise control functionality. In older models, a broken vacuum line may be responsible for the malfunction. Since the cruise control system is managed by the body control module, any issues with this module or its connections can lead to problems. For a thorough diagnosis, using a high-end scan tool to read fault codes from the body control module can provide valuable insights into the specific issue at hand. By understanding these common problems, DIYers can effectively troubleshoot and potentially resolve cruise control issues in their Cadillac SRX.

Why is the Cruise Control Not Working in a Cadillac SRX?

When the cruise control in your Cadillac SRX is not functioning, it’s crucial to address the issue promptly, as neglecting it can lead to safety risks and potentially more significant vehicle damage. Common culprits include a failed control module, faulty sensors, or malfunctioning switches, which can disrupt the system's operation. Additionally, problems with throttle actuation or a blown fuse may also be at play, affecting your ability to maintain speed safely on the highway. A defective brake pedal switch is another frequent issue that can inadvertently disengage the cruise control, posing a risk during long drives. If your vehicle is older, consider checking for broken vacuum lines, as these can also hinder cruise control functionality. It’s advisable to troubleshoot these components as soon as you notice any symptoms, as timely intervention can prevent further complications and ensure a safer driving experience.

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