2018 Cadillac Escalade Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2018 Cadillac Escalade and How to Fix Them

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Reviewed by
Andrew Hajjar
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 2018 Cadillac Escalade 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 2018 Cadillac Escalade 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 steps to diagnose the cruise control issue in a 2018 Cadillac Escalade?

When diagnosing a cruise control issue in a 2018 Cadillac Escalade, it's crucial to follow a methodical approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the cruise control fuse, as a blown fuse can easily disrupt the system's operation. Next, examine the cruise control buttons on the steering wheel to ensure they are functioning correctly, since any malfunction here can prevent the system from engaging. Utilizing a diagnostic scanner to check for error codes can provide insights into specific problems affecting the cruise control system. It's also important to assess the speed sensors, as faulty sensors can hinder the system's ability to maintain a consistent speed. Pay close attention to the wiring and connections associated with the cruise control system; any signs of damage or corrosion can lead to significant functionality issues. Lastly, testing the cruise control module is essential, as a malfunctioning module can completely disable the system. By systematically addressing each of these components, you can effectively diagnose and resolve the cruise control issues in your Cadillac Escalade.

What are the common problems that could cause the cruise control to stop working in a 2018 Cadillac Escalade?

When the cruise control in a 2018 Cadillac Escalade ceases to function, several common issues may be at play. One primary culprit could be faulty speed sensors, which are essential for the system to accurately gauge the vehicle's speed. If these sensors are malfunctioning, the cruise control may not engage or maintain speed properly. Another frequent issue is related to the brake light switch; if this switch is defective, it can inadvertently signal the cruise control to deactivate whenever the brakes are applied, disrupting its operation. Additionally, blown fuses can pose a significant problem, as they can cut power to the cruise control system entirely. Throttle control malfunctions can also interfere with the system's ability to maintain a steady speed, while issues with the electronic control module, which oversees various vehicle functions, can lead to broader system failures. For those looking to troubleshoot these problems, it is advisable to start by checking the speed sensors and brake light switch, followed by inspecting fuses and the throttle control system. If these components appear to be functioning correctly, consulting a qualified mechanic may be necessary to diagnose more complex electronic issues.

How urgent is it to address the malfunctioning cruise control in a 2018 Cadillac Escalade?

Addressing a malfunctioning cruise control in a 2018 Cadillac Escalade is of utmost importance due to the significant safety risks it poses. A malfunction can lead to unexpected acceleration or deceleration, which can result in dangerous driving situations and increase the likelihood of accidents. Additionally, a faulty cruise control system can detract from the overall driving experience, making it inconvenient and frustrating to operate the vehicle. Ignoring these symptoms not only compromises safety but can also lead to increased fuel consumption, as the vehicle may struggle to maintain a consistent speed. Furthermore, delaying repairs can exacerbate the issue, potentially causing more extensive damage to the vehicle's systems and components. Therefore, it is crucial to address any cruise control malfunctions promptly to ensure both safety and optimal vehicle performance.

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