2019 Genesis G80 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2019 Genesis G80 and How to Fix Them

Find Repair Location
Reviewed by
Bo Fader
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 2019 Genesis G80 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 2019 Genesis G80 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 steps should I take to diagnose the non-functioning cruise control in my 2019 Genesis G80?

To effectively diagnose the non-functioning cruise control in your 2019 Genesis G80, start with the simplest solutions before moving on to more complex diagnostics. Begin by checking the cruise control fuse in the fuse box, as a blown fuse can easily disrupt the system. Next, inspect the cruise control buttons on the steering wheel for any damage or debris that may prevent them from functioning properly. If these components are in good condition, proceed to verify the speed sensor, as a malfunctioning sensor can significantly impact cruise control performance. Additionally, examine the brake pedal switch, ensuring it is not stuck in the off position, as this switch is crucial for the system's operation. If the issue persists, use an OBD-II scanner to check for any error codes that could indicate specific problems within the cruise control system. Finally, inspect the cruise control module for any signs of damage or loose connections. If you are still unable to identify the issue after these steps, it may be best to consult a professional mechanic for further assistance. By following this structured approach, you can systematically diagnose and address the cruise control issue in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2019 Genesis G80?

When troubleshooting cruise control issues in a 2019 Genesis G80, it's essential to consider several common problems that may be at play. A faulty speed sensor is often a primary culprit, as it can disrupt the system's ability to accurately gauge the vehicle's speed, leading to malfunction. Additionally, the brake light switch can cause the cruise control to disengage unexpectedly; if this switch is faulty, it may signal the system to deactivate whenever the brake pedal is pressed. Another potential issue is a blown fuse, which can interrupt the electrical flow necessary for the cruise control to operate. Furthermore, problems with the throttle control system, such as a malfunctioning throttle position sensor, can hinder the cruise control's ability to maintain a steady speed. Lastly, the Electronic Control Module (ECM) plays a crucial role in managing various vehicle functions, including cruise control, and any malfunctions here can lead to system failure. By understanding these common issues, DIY enthusiasts can better diagnose and address the problems affecting their cruise control system.

How urgent is it to address the malfunctioning cruise control in a 2019 Genesis G80?

Addressing a malfunctioning cruise control in a 2019 Genesis G80 is of utmost importance due to the significant safety risks it poses. A faulty system can lead to unexpected acceleration or deceleration, which can create dangerous driving conditions not only for the driver but also for passengers and other road users. Furthermore, a malfunctioning cruise control diminishes the overall driving experience, making long trips less convenient and more stressful. Ignoring these symptoms can lead to further complications, including additional wear and tear on the vehicle's components, which may result in more extensive and costly repairs down the line. Therefore, it is crucial to prioritize the repair of the cruise control system to ensure safety and maintain the vehicle's performance.

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.