2015 Acura RLX Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2015 Acura RLX and How to Fix Them

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Reviewed by
Andrew Hajjar
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 2015 Acura RLX 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 2015 Acura RLX 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.

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.

What are the steps to diagnose the cruise control issue in a 2015 Acura RLX?

To effectively diagnose a cruise control issue in your 2015 Acura RLX, start with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the fuse box for any blown fuses related to the cruise control system, as this is a common and easily fixable problem that can disrupt power to critical components. Next, examine the cruise control switch for any signs of malfunction, as a faulty switch or poor electrical connections can significantly impact functionality. Following this, visually inspect the wiring harness and connectors for damage or corrosion, which can also lead to connectivity issues. Utilizing a diagnostic scanner to check for specific error codes can provide valuable insights into the underlying problems affecting the cruise control system. Finally, assess the cruise control actuator to ensure it is functioning correctly, replacing it if necessary after confirming that signals are being received properly. By adhering to this structured diagnostic approach, you can efficiently identify and resolve cruise control issues in your vehicle.

How urgent is it to address the malfunctioning cruise control in a 2015 Acura RLX?

When it comes to the malfunctioning cruise control in a 2015 Acura RLX, understanding the urgency of the situation is crucial for both safety and driving comfort. While the cruise control feature may not seem critical to the vehicle's overall performance, neglecting its issues can lead to more significant problems down the line. A malfunctioning system can disrupt your driving experience, making long journeys more tiring and less efficient, as it prevents you from maintaining a constant speed. Additionally, the underlying causes of cruise control failure—such as blown fuses, faulty brake switches, or malfunctioning speed sensors—can sometimes indicate broader electrical or mechanical issues that, if left unaddressed, could escalate into costly repairs. Therefore, while it may not be an immediate emergency, it is advisable to diagnose and repair the cruise control system promptly. This proactive approach not only enhances your driving comfort and fuel efficiency but also ensures that your vehicle remains in optimal condition, ultimately contributing to a safer driving experience.

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Cruise Control Malfunction in 2015 Acura RLX