2017 Genesis G90 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2017 Genesis G90 and How to Fix Them

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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 2017 Genesis G90 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 2017 Genesis G90 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.

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 steps should I take to diagnose the non-functioning cruise control in my 2017 Genesis G90?

To effectively diagnose the non-functioning cruise control in your 2017 Genesis G90, start with the simplest solutions before moving on to more complex diagnostics. Begin by checking the cruise control fuse in the fuse box; a blown fuse is an easy fix that can often resolve the issue. Next, inspect the cruise control buttons on the steering wheel for any signs of damage or sticking, as these can hinder functionality. If the buttons are in good condition, proceed to verify the speed sensor, as a malfunctioning sensor can disrupt the cruise control system. Additionally, examine the brake pedal switch, since a faulty switch can prevent the cruise control from engaging altogether. If these initial checks do not reveal the problem, use an OBD-II scanner to look for any error codes that may indicate specific issues within the system. Should you still be unable to identify the cause, it may be wise to consult a professional mechanic for a comprehensive inspection and repair. By following this structured approach, you can systematically address potential issues and restore your cruise control functionality.

What are the common problems that could cause the cruise control to stop working in a 2017 Genesis G90?

When troubleshooting the cruise control system in a 2017 Genesis G90, several common problems may be at play. One of the first areas to check is the speed sensor, as a faulty sensor can disrupt the system's ability to gauge the vehicle's speed accurately, leading to cruise control failure. Additionally, the brake light switch is crucial; if it malfunctions, it may cause the cruise control to disengage unexpectedly 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, particularly a defective throttle position sensor, can hinder the cruise control's ability to maintain a steady speed. Lastly, the Electronic Control Module (ECM) plays a vital role in managing various vehicle functions, including cruise control, and any malfunctions here can also result in system failure. By systematically checking these components, DIYers can identify and address the root cause of the cruise control issues in their Genesis G90.

How urgent is it to address the malfunctioning cruise control in a 2017 Genesis G90?

Addressing a malfunctioning cruise control in a 2017 Genesis G90 is of utmost urgency due to the significant safety risks it poses. A faulty system can lead to unexpected acceleration or deceleration, which can endanger both the driver and other road users. Additionally, cruise control is designed to enhance the driving experience, particularly on long journeys, and any malfunction can detract from this comfort, making driving more stressful and less enjoyable. Furthermore, neglecting these issues can lead to more severe problems within the vehicle's systems, resulting in costly repairs down the line. Therefore, it is crucial for owners to prioritize the diagnosis and repair of cruise control malfunctions to ensure their safety, maintain driving comfort, and prevent further damage to their vehicle.

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Troubleshooting 2017 Genesis G90 Cruise Control Problems