2007 Cadillac DTS Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2007 Cadillac DTS and How to Fix Them

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Reviewed by
Aisha
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 2007 Cadillac DTS 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 2007 Cadillac DTS 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.

A faulty cruise control module will simply result in deactivation of cruise control settings. This is because a detected error in the cruise control system could lead to hazardous driving conditions, so the module will be disabled, and the cruise control system warning light will be displayed. This will be a different message depending on make and model, and a warning light or message may be displayed on the driver instrument cluster.

What are the initial diagnostic steps to troubleshoot the non-functioning cruise control in a 2007 Cadillac DTS?

When troubleshooting the non-functioning cruise control in a 2007 Cadillac DTS, it's essential to adopt a systematic diagnostic approach. Begin by checking the cruise control fuse located in the fuse box, as a blown fuse is a straightforward issue that can easily disrupt functionality. Next, inspect the cruise control buttons on the steering wheel for any signs of damage or sticking, as these can prevent the system from engaging properly. Following this, verify the operation of the vehicle's speed sensors, since faulty sensors can significantly impact cruise control performance. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying issues. Additionally, ensure that the brake lights are functioning correctly, as a malfunctioning brake light switch can interfere with cruise control operation. Lastly, if your vehicle employs a vacuum-operated system, inspect the vacuum lines for leaks or damage, as these can hinder the system's ability to maintain speed. By following these steps, you can effectively diagnose and potentially resolve the cruise control issue in your Cadillac DTS.

What are the common problems that could cause the cruise control to stop working in a 2007 Cadillac DTS?

When troubleshooting the cruise control system in a 2007 Cadillac DTS, it's essential to understand the common problems that may lead to its failure. One of the primary culprits is a faulty brake light switch, which can prevent the cruise control from engaging since the system is designed to deactivate when the brake pedal is pressed. Additionally, issues with the speed sensor can disrupt the system's ability to maintain speed, as it relies on accurate readings to function correctly. Another potential issue is a blown fuse within the cruise control circuit; checking and replacing any blown fuses can often resolve the problem. If these components are functioning properly, the cruise control module itself may be at fault, requiring repair or replacement. Lastly, vacuum leaks in the engine can also hinder the cruise control's performance, affecting its ability to maintain speed. By identifying these common issues, DIY enthusiasts can better diagnose and address the cruise control problems in their Cadillac DTS.

How urgent is it to address the non-functioning cruise control in a 2007 Cadillac DTS?

When it comes to the non-functioning cruise control in a 2007 Cadillac DTS, understanding the urgency of the situation is crucial for any DIY enthusiast. While a malfunctioning cruise control may not present an immediate safety risk like failing brakes or steering, it can still indicate deeper issues within the vehicle's electronic systems. Ignoring this problem could lead to further complications, potentially affecting other critical components and compromising overall vehicle safety. Moreover, a properly functioning cruise control system enhances driving comfort and fuel efficiency, making it an important feature for long trips. Therefore, it is advisable to inspect and address the cruise control issue promptly, either through DIY troubleshooting or by consulting a qualified mechanic, to ensure the vehicle remains safe and reliable on the road.

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