2020 Lincoln Aviator Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2020 Lincoln Aviator 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 2020 Lincoln Aviator 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 2020 Lincoln Aviator 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 are the steps to diagnose the cruise control issue in a 2020 Lincoln Aviator?

To effectively diagnose a cruise control issue in a 2020 Lincoln Aviator, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse, as a blown fuse can easily disrupt functionality. Next, examine the cruise control buttons on the steering wheel to ensure they are operational and not stuck or damaged. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying issues within the vehicle's onboard computer. Additionally, inspect the speed sensors, as they are critical for the cruise control system's performance. Pay attention to wiring connections related to the cruise control system, ensuring they are secure and undamaged. Finally, test the cruise control module to confirm it is sending the correct signals. If these steps do not resolve the issue, it may be necessary to consult a professional mechanic who specializes in Lincoln vehicles for a thorough diagnosis and repair. This methodical approach not only helps in identifying the problem but also saves time and resources by addressing the most likely causes first.

What are the common problems that could cause the cruise control to stop working in a 2020 Lincoln Aviator?

When the cruise control in your 2020 Lincoln Aviator ceases to function, it can be frustrating, but understanding the common problems can help you troubleshoot effectively. One of the primary culprits is faulty speed sensors, which are essential for the cruise control system to accurately gauge the vehicle's speed. If these sensors are malfunctioning, the system may not engage or maintain speed as intended. Another frequent issue is related to the brake light switch; if this switch is defective, it may incorrectly signal that the brakes are applied, thereby disabling the cruise control. Additionally, blown fuses can disrupt the electrical flow to the cruise control system, leading to a complete failure. Problems with the throttle control can also hinder the system's ability to maintain a steady speed, while issues with the Electronic Control Module (ECM) can affect various vehicle functions, including cruise control. By identifying these potential problems, you can take the necessary steps to diagnose and resolve the issue, ensuring a smoother driving experience.

How urgent is it to address the malfunctioning cruise control in a 2020 Lincoln Aviator?

Addressing a malfunctioning cruise control in a 2020 Lincoln Aviator is of utmost urgency 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 potential accidents. Moreover, neglecting this issue may not only compromise your safety but could also lead to more severe damage to the vehicle's components, resulting in costly repairs down the line. It is crucial to act promptly by consulting a qualified mechanic or an authorized service center to accurately diagnose and repair the cruise control system. By doing so, you ensure that your vehicle operates safely and efficiently, ultimately protecting both yourself and others on the road.

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