2023 INFINITI Q50 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2023 INFINITI Q50 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 2023 INFINITI Q50 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 2023 INFINITI Q50 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.

When the vehicle speed sensor fails or the wiring harness prevents signal transmission, the speedometer is the first thing that will stop functioning properly. This can be an intermittent issue where the speedometer only works occasionally, the speedometer may cease all function, or the speedometer may read erratically or incorrectly. Also, the traction control and anti lock brake warning lights specific to each vehicle may be illuminated, depending on the design of those systems. You may notice the vehicle hesitate to accelerate, cruise control will not function properly, and the vehicle may not shift properly through all of the gears.

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 2023 INFINITI Q50?

To effectively diagnose the cruise control issue in your 2023 INFINITI Q50, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse located in the fuse box, as a blown fuse is a common culprit for malfunctioning systems. Next, examine the cruise control buttons on your steering wheel to ensure they are operational, as faulty buttons can disrupt functionality. Following this, verify the speed sensor, which is essential for maintaining the set speed; a malfunctioning sensor can lead to cruise control failure. Additionally, check the brake pedal switch, which should disengage the cruise control when the brakes are applied; if this switch is faulty, it may prevent the system from engaging properly. To gain further insights, utilize an OBD-II scanner to identify any error codes that may indicate specific issues within the cruise control system. If these steps do not resolve the problem, it may be necessary to consult a professional mechanic or an authorized INFINITI service center for a comprehensive diagnosis and repair. By following this structured diagnostic approach, you can efficiently identify and address the cruise control issue in your vehicle.

What common issues cause cruise control failure in a 2023 INFINITI Q50?

When dealing with cruise control failure in a 2023 INFINITI Q50, it's essential to understand the common issues that may arise. One of the primary culprits is a malfunctioning control module, which is responsible for processing signals and managing the cruise control system. If this module fails, it can disrupt the entire system's functionality. Additionally, sensor issues, particularly with the speed or throttle position sensors, can lead to inaccurate readings, causing the cruise control to disengage unexpectedly. Throttle problems, such as a stuck throttle or issues with the throttle body, can also prevent the cruise control from operating correctly. For those looking to tackle these issues themselves, it's crucial to conduct a thorough inspection of these components, as identifying the specific problem can save time and money in repairs. However, if the problem persists, consulting a professional is recommended to ensure a proper diagnosis and resolution.

How urgent is it to address the malfunctioning cruise control in my 2023 INFINITI Q50?

When it comes to the malfunctioning cruise control in your 2023 INFINITI Q50, the urgency of addressing the issue cannot be overstated. A faulty cruise control system can significantly impact your driving experience, especially during long journeys where maintaining a steady speed is crucial for comfort and fuel efficiency. Ignoring this problem may not only diminish your driving convenience but could also pose serious safety risks. Cruise control is designed to help you maintain a consistent speed, which is particularly beneficial in certain driving conditions, such as highway travel. If the system fails, you may find yourself struggling to control your speed, increasing the likelihood of accidents. Moreover, the underlying causes of cruise control malfunctions can range from simple issues, like a blown fuse, to more complex problems involving the control module or sensors. Addressing these issues promptly can prevent further complications and potentially save you time and money on repairs. Therefore, it is advisable to take action as soon as you notice any symptoms of malfunction to ensure your safety and the optimal performance of your vehicle.

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2023 INFINITI Q50 Cruise Control Problems & Repair Costs