2016 INFINITI QX70 Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2016 INFINITI QX70

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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 2016 INFINITI QX70 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 2016 INFINITI QX70 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 are the steps to diagnose the cruise control issue in a 2016 INFINITI QX70?

To effectively diagnose a cruise control issue in your 2016 INFINITI QX70, begin with the simplest solutions. Start by checking the cruise control fuse to ensure it is intact, as a blown fuse can easily disrupt the system. Next, inspect the cruise control buttons on the steering wheel for any signs of damage or malfunction, as these controls are essential for operation. If these initial checks do not reveal the problem, use an OBD-II scanner to identify any error codes that may indicate specific issues within the cruise control system. Following this, examine the speed sensors, which are critical for the system's functionality, and ensure they are operating correctly. Additionally, test the brake pedal switch, as this component is vital for disengaging cruise control when the brakes are applied. Lastly, inspect the wiring connections associated with the cruise control system for any loose or damaged wires that could be causing the malfunction. If you have completed these steps and the issue persists, it may be time to consult a professional mechanic who specializes in INFINITI vehicles for further assistance. By following this structured approach, you can efficiently diagnose and potentially resolve cruise control issues in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2016 INFINITI QX70?

When the cruise control in your 2016 INFINITI QX70 ceases to function, it can be frustrating, but understanding the common problems can help you troubleshoot effectively. One of the primary culprits is a faulty brake pedal switch, which is crucial for disengaging the cruise control when the brake is applied. If this switch malfunctions, it may prevent the system from engaging at all. Additionally, issues with the speed sensor can disrupt the cruise control's ability to maintain speed, as it relies on accurate readings to operate correctly. Another potential issue is a blown fuse, which can cut power to the cruise control system entirely. Furthermore, a malfunctioning throttle actuator can hinder the system's ability to control engine speed, leading to erratic behavior or failure to maintain set speeds. Lastly, problems with the Electronic Control Module (ECM) can also affect the cruise control, as this component manages various vehicle functions, including the cruise system. By identifying these common issues, you can take the first steps toward diagnosing and potentially fixing the cruise control problem in your vehicle.

How urgent is it to address the malfunctioning cruise control in a 2016 INFINITI QX70?

When it comes to a malfunctioning cruise control in a 2016 INFINITI QX70, the urgency of addressing the issue cannot be overstated. A malfunctioning system can lead to unexpected acceleration or deceleration, creating a significant safety risk for both the driver and other road users. Additionally, cruise control problems may signal deeper issues within the vehicle's electronic systems or sensors, which can compromise overall drivability and performance. Ignoring these symptoms not only risks safety but can also result in decreased fuel efficiency and potential damage to other vehicle components, leading to more costly repairs down the line. Therefore, it is crucial to diagnose and repair cruise control malfunctions promptly, ensuring the vehicle operates smoothly and safely on the road. Taking swift action can prevent further complications and ultimately save on repair costs, making it essential for any DIY enthusiast to prioritize this issue.

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Diagnose Cruise Control Issues in 2016 INFINITI QX70