2018 Buick Encore Cruise Control Isn't Working

Troubleshooting Common Issues with Cruise Control in Your 2018 Buick Encore and How to Fix Them

Find Repair Location
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 2018 Buick Encore 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 Buick Encore 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 initial diagnostic steps to troubleshoot the non-functioning cruise control in a 2018 Buick Encore?

When troubleshooting the non-functioning cruise control in a 2018 Buick Encore, it's essential to adopt a systematic diagnostic approach. Start by checking the cruise control fuse, as a blown fuse can easily disrupt the system's functionality. Next, ensure that the cruise control settings are correctly configured; sometimes, the issue may simply stem from incorrect settings on the control stalk or steering wheel buttons. If these initial checks do not resolve the problem, inspect the speed sensors, as faulty sensors can prevent the cruise control from engaging. Utilizing a diagnostic scanner to check for error codes can provide further insights into any underlying issues. Additionally, verify that the brake and clutch switches are functioning properly, as malfunctioning switches can inhibit cruise control activation. Finally, examine the wiring and connections associated with the cruise control system for any signs of damage or corrosion. By following this structured approach, you can effectively identify and address the issues affecting your vehicle's cruise control system.

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

When dealing with cruise control issues in a 2018 Buick Encore, it's essential to understand the common problems that may be at play. One of the primary culprits is a faulty brake pedal switch, which can disrupt the system's ability to engage or disengage properly. Additionally, a malfunctioning speed sensor can prevent the cruise control from maintaining a consistent speed, leading to erratic performance. It's also worth checking for a blown fuse, as this can completely disable the cruise control system. Another potential issue is a malfunction within the throttle actuator control system, which is crucial for speed maintenance. Lastly, any underlying electrical problems, such as wiring faults or a defective cruise control module, can significantly impact functionality. By systematically examining these areas, you can effectively troubleshoot and resolve cruise control issues, ensuring a smoother driving experience.

How urgent is it to address the malfunctioning cruise control in a 2018 Buick Encore?

When it comes to a malfunctioning cruise control in a 2018 Buick Encore, the urgency to address the issue cannot be overstated. A faulty cruise control system can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, which significantly increases the risk of accidents on the road. Ignoring these symptoms not only jeopardizes your safety but also that of other drivers and pedestrians. Moreover, delaying repairs can exacerbate the problem, potentially leading to more extensive and costly damage to the vehicle's systems. Therefore, it is crucial to prioritize the inspection and repair of the cruise control system, ideally by a qualified mechanic or dealership, to ensure that your vehicle remains safe and reliable. Taking prompt action not only protects you and your passengers but also helps maintain the overall integrity of your Buick Encore, making it a wise decision for any DIY enthusiast.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.