2015 Acura RDX Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2015 Acura RDX 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 2015 Acura RDX 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 2015 Acura RDX 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.

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

When diagnosing a cruise control issue in a 2015 Acura RDX, it's essential to adopt a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the cruise control fuse, as a blown fuse can often be the root of the problem. Next, examine the cruise control buttons on the steering wheel to ensure they are not stuck or damaged, as this can impede functionality. Utilizing an OBD-II scanner to check for error codes can provide valuable insights into any underlying issues. Additionally, inspect the speed sensors, which are critical for the cruise control system's operation, and verify that the brake lights are functioning correctly, since a malfunction here can disrupt the cruise control. Finally, test the cruise control module to confirm it is sending the appropriate signals. If these steps do not resolve the issue, seeking assistance from a professional mechanic is advisable to ensure a thorough diagnosis and repair. This methodical approach not only helps in identifying the problem efficiently but also saves time and resources in the DIY process.

What are the common problems that could cause the cruise control to stop working in a 2015 Acura RDX?

When troubleshooting cruise control issues in a 2015 Acura RDX, it's essential to understand the common problems that may be at play. One frequent culprit is a failed control module, which can disrupt the entire cruise control system. Additionally, problems with the adaptive cruise control system can also lead to malfunctions, as reported by several owners. Another area to investigate is the vacuum actuator; if this component is not functioning correctly, it can prevent the cruise control from operating as intended. Electrical issues, such as blown fuses or faulty wiring, can further complicate matters, so checking the electrical components is crucial. Lastly, the condition of the brake pedal and throttle body should not be overlooked, as any irregularities here can directly impact cruise control functionality. By systematically examining these areas, you can identify the root cause of the cruise control malfunction and take appropriate steps to resolve the issue.

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

Addressing a malfunctioning cruise control in a 2015 Acura RDX is of utmost importance due to the potential safety risks it poses. A faulty system can lead to unexpected acceleration or deceleration, which can create hazardous driving conditions. Additionally, the convenience and overall driving experience are compromised when cruise control fails, making long trips more stressful and less enjoyable. Ignoring these symptoms not only affects the immediate driving experience but can also lead to increased fuel consumption and further damage to the vehicle's components, resulting in more costly repairs down the line. Therefore, it is crucial to prioritize the repair of cruise control issues to ensure both safety and the efficient operation of your vehicle.

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