2012 Hyundai Genesis Coupe Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2012 Hyundai Genesis Coupe 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 2012 Hyundai Genesis Coupe cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty sensor can lead to incorrect readings, causing issues with engine performance or triggering warning lights on the dashboard.
  • Control Module: A faulty control module can result in 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 acceleration and poor engine 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 2012 Hyundai Genesis Coupe 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.

What are the steps to diagnose the cruise control issue in a 2012 Hyundai Genesis Coupe?

To effectively diagnose a cruise control issue in a 2012 Hyundai Genesis Coupe, start with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the control module, as a malfunction here is a common culprit for cruise control failures. Next, examine the sensors and switches associated with the cruise control system; these components can often be the source of the problem if they are not functioning correctly. Following this, assess the throttle actuation system, ensuring it operates as intended, since any issues here can disrupt cruise control functionality. If these initial checks do not reveal the problem, utilize a Hyundai diagnostic scanner to retrieve any fault codes, which can provide valuable insights into the underlying issue. Finally, conduct a test drive to evaluate the cruise control's performance in real-time, noting any irregularities. Throughout this process, consulting the owner's manual can offer additional guidance tailored to your vehicle, ensuring a thorough and informed diagnostic approach.

What could cause cruise control failure in a 2012 Hyundai Genesis Coupe?

When dealing with cruise control failure in a 2012 Hyundai Genesis Coupe, it's essential to recognize the common problems that may be at play. One of the primary culprits is a malfunctioning control module, which can disrupt the communication between the cruise control system and the vehicle's engine management. Additionally, issues with sensors or switches, such as a faulty cruise control switch, can lead to either complete failure or partial functionality of the cruise control feature. Throttle actuation problems are another significant factor, as they can prevent the system from maintaining the desired speed. Furthermore, if you encounter error codes like C1604 or C1606, these may indicate ECU hardware failures that could require replacing the smart cruise control system. By understanding these potential issues, DIYers can effectively diagnose and address the root causes of cruise control failure, ensuring a smoother driving experience.

How urgent is it to address the non-functioning cruise control in a 2012 Hyundai Genesis Coupe?

Addressing the non-functioning cruise control in your 2012 Hyundai Genesis Coupe should not be overlooked, as it can lead to several complications if left unresolved. While it may seem like a minor inconvenience, the malfunction could indicate deeper issues with critical components such as the control module, throttle actuation, or sensors. Ignoring these symptoms may not only affect your driving comfort, especially on long trips, but could also compromise the vehicle's overall performance and fuel efficiency. For instance, a failing throttle position sensor can cause the engine to overcompensate, leading to increased fuel consumption. Additionally, a simple check for blown fuses can often reveal the root of the problem and prevent further complications. Therefore, while it may not be an immediate emergency, addressing cruise control issues promptly is essential for maintaining a smooth and safe driving experience.

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