Genesis G70 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Genesis G70 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 Genesis G70 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 Genesis G70 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.

Troubleshooting Cruise Control Issues in a Genesis G70

When troubleshooting cruise control issues in your Genesis G70, it's essential to adopt a systematic diagnostic approach. Start by checking the simplest potential problems, such as a blown fuse, which is often the easiest fix and can be done quickly. Next, inspect the brake light and brake switch, as a malfunction here can disrupt the cruise control system. If these initial checks do not resolve the issue, turn your attention to the engine; a check engine light or other engine-related problems can inhibit cruise control functionality. Should the problem persist, delve deeper into the vehicle's systems by examining the Control Module, as well as the sensors and throttle, which may also contribute to the malfunction. By following this structured approach, you can effectively identify and address the root cause of your cruise control issues, ensuring a smoother driving experience.

What Could Cause the Cruise Control to Malfunction in a Genesis G70?

When dealing with cruise control malfunctions in a Genesis G70, it's essential to understand the common problems that may arise. One of the primary culprits is a failed control module, sensor, or switch, which can disrupt the system's functionality. Additionally, throttle actuation issues, particularly stemming from a faulty throttle position sensor, can cause the engine's computer to overcompensate, potentially leading to black exhaust emissions. It's also important to inspect for simple yet impactful problems such as disconnected electrical connectors, water or debris damage, or even physical damage from front-end collisions that could affect the wiring harness. Blown fuses can further complicate matters by interrupting the power supply necessary for the cruise control to operate correctly. Moreover, the brake pedal sensor plays a crucial role in engaging the cruise control; any defects in the brake pedal switch or issues with the throttle control system can lead to a complete failure of the cruise control feature. By systematically checking these common issues, DIYers can effectively diagnose and address the malfunction, restoring the cruise control functionality in their Genesis G70.

Why is the Cruise Control Not Working in a Genesis G70?

When the cruise control in your Genesis G70 is malfunctioning, it’s crucial to address the issue promptly, as neglecting it can lead to safety risks and potentially more significant vehicle damage. Common culprits include a failed control module, faulty sensors, or issues with the throttle actuation system. Additionally, a blown fuse or a defective brake pedal switch can disrupt cruise control functionality. If these problems are not resolved, they may not only impair your driving experience but could also lead to more extensive repairs down the line. Therefore, if you notice any symptoms of cruise control failure, it’s advisable to conduct a thorough inspection or consult a qualified mechanic to diagnose the issue accurately. Taking swift action can help maintain your vehicle's performance and ensure your safety on the road.

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.