2019 INFINITI QX30 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2019 INFINITI QX30 and How to Fix Them

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Reviewed by
Devin Cabugcal
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 INFINITI QX30 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 INFINITI QX30 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 steps should I take to diagnose the cruise control issue in my 2019 INFINITI QX30?

To effectively diagnose the cruise control issue in your 2019 INFINITI QX30, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse in the fuse box, as a blown fuse can often be the simplest explanation for malfunction. Next, examine the cruise control buttons on the steering wheel to ensure they are functioning correctly, as faulty buttons can disrupt the system's operation. If these initial checks do not reveal the problem, utilize an OBD-II scanner to identify any error codes that may indicate specific issues within the cruise control system. Following this, inspect the speed sensors, as they play a crucial role in maintaining the set speed; any faults here can lead to cruise control failure. Additionally, verify the functionality of the brake and clutch switches, since malfunctioning switches can disable the cruise control entirely. Finally, if all else checks out, test the cruise control module to ensure it is properly sending and receiving signals. By following this structured diagnostic approach, you can efficiently identify and address the root cause of the cruise control issue in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2019 INFINITI QX30?

When the cruise control in your 2019 INFINITI QX30 ceases to function, it can be frustrating, but understanding the common problems can help you diagnose the issue. One frequent culprit is a faulty speed sensor, which is essential for the cruise control system to accurately gauge the vehicle's speed. If this sensor malfunctions, the system may fail to engage or maintain the desired speed. Another potential issue lies with the brake light switch; if this switch is defective, it can inadvertently signal the cruise control to deactivate whenever the brakes are applied, disrupting its operation. Additionally, a malfunctioning throttle actuator can hinder the system's ability to control the engine's throttle, further complicating speed maintenance. Electrical problems, such as faulty wiring or blown fuses, can also interfere with the cruise control's functionality, leading to unexpected failures. Lastly, if the cruise control module itself is experiencing issues, it may not operate as intended. For those looking to tackle these problems themselves, a thorough inspection of these components can provide valuable insights into the underlying cause of the cruise control malfunction.

How urgent is it to address the non-functioning cruise control in a 2019 INFINITI QX30?

When it comes to a non-functioning cruise control in a 2019 INFINITI QX30, the urgency of addressing the issue cannot be overstated. A malfunctioning cruise control system poses significant safety risks, particularly during long drives or highway travel where maintaining a steady speed is crucial. Ignoring this problem can lead to increased driver fatigue and discomfort, as the driver must constantly manage the accelerator, detracting from the overall driving experience. Moreover, diagnosing the issue early with a qualified mechanic can prevent further complications that may arise from neglecting the problem, potentially saving you from costly repairs down the line. By prioritizing the repair of your cruise control system, you not only enhance your safety and comfort on the road but also make a wise financial decision in the long run.

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2019 INFINITI QX30 Cruise Control Not Working: Common Fixes