2017 Acura RLX Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2017 Acura RLX 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 2017 Acura RLX 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 2017 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 non-functioning cruise control in a 2017 Acura RLX?

When diagnosing the non-functioning cruise control in a 2017 Acura RLX, it's essential to adopt a systematic approach that begins with the simplest solutions before progressing to more complex diagnostics. Start by checking the cruise control fuse in the fuse box, as a blown fuse is a common and easily fixable issue. Next, inspect the cruise control buttons on the steering wheel for any signs of damage or sticking, as these can hinder functionality. If the buttons are in good condition, move on to verifying the speed sensor, which plays a crucial role in the cruise control system's operation. A malfunctioning speed sensor can disrupt the system's ability to maintain speed. Additionally, examine the brake pedal switch, as a faulty switch can prevent the cruise control from engaging altogether. If these components check out, use an OBD-II scanner to look for any error codes that may indicate underlying problems. Finally, assess the cruise control module to ensure it is functioning correctly; if it is not sending signals as it should, replacement may be necessary. By following this diagnostic approach, you can effectively identify and resolve the issues affecting your cruise control system.

What are the common problems that could cause the cruise control to stop working in a 2017 Acura RLX?

When troubleshooting the cruise control system in a 2017 Acura RLX, it's essential to consider several common issues that may be at play. One of the first things to check is the cruise control switch, as a malfunction here can prevent the system from engaging or disengaging properly. Additionally, inspect the fuses related to the cruise control system; a blown fuse can disrupt functionality entirely. Another critical component to examine is the speed sensor, which plays a vital role in maintaining the vehicle's speed; any issues with this sensor can lead to cruise control failure. Furthermore, the brake light switch should be assessed, as a faulty switch can cause the cruise control to disengage unexpectedly when the brakes are applied. Lastly, the throttle actuator, responsible for adjusting the engine's throttle, may also be malfunctioning, impacting the cruise control's operation. By systematically checking these components, DIYers can often identify the root cause of the cruise control issue and take appropriate steps to resolve it.

How urgent is it to address the malfunctioning cruise control in a 2017 Acura RLX?

Addressing a malfunctioning cruise control system in a 2017 Acura RLX is of utmost importance due to the potential safety risks it poses. A malfunction can lead to unexpected acceleration or deceleration, which can create hazardous driving conditions and increase the likelihood of accidents. Additionally, a faulty cruise control system can detract from the overall driving experience, making it inconvenient and frustrating to operate the vehicle. Ignoring these symptoms not only compromises safety but can also lead to increased fuel consumption, as the vehicle may struggle to maintain a consistent speed. Furthermore, delaying repairs can result in more extensive damage to the vehicle's systems, leading to costly repairs down the line. Therefore, it is crucial to address any cruise control issues as soon as they arise to ensure both safety and optimal vehicle performance.

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2017 Acura RLX Cruise Control Issues & Repair Costs