2017 INFINITI QX70 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2017 INFINITI QX70 and How to Fix Them

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Reviewed by
Aisha
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 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 2017 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 steps should I take to diagnose the non-functioning cruise control in my 2017 INFINITI QX70?

To effectively diagnose the non-functioning cruise control in your 2017 INFINITI QX70, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse in the fuse box, as a blown fuse is a common and easily fixable issue that can disrupt the system. Next, examine the cruise control buttons on the steering wheel for any signs of damage or sticking, as these can prevent the system from engaging properly. Following this, verify the functionality of the speed sensor, which is essential for maintaining a constant speed; a malfunctioning sensor can lead to cruise control failure. Additionally, check the brake pedal switch, as it is designed to disengage the cruise control when the brakes are applied; if this switch is faulty, it may inadvertently disable the system. To further diagnose the issue, utilize an OBD-II scanner to identify any error codes that may provide insight into specific problems within the cruise control system. If these steps do not resolve the issue, it may be necessary to consult a qualified mechanic or dealership that specializes in INFINITI vehicles for a comprehensive inspection and repair. By following this structured diagnostic approach, you can efficiently identify and address the underlying causes of your cruise control malfunction.

What are the common problems that could cause the cruise control to stop working in a 2017 INFINITI QX70?

When troubleshooting cruise control issues in a 2017 INFINITI QX70, it's essential to understand the common problems that may be at play. One frequent culprit is a faulty brake pedal switch, which is designed to disengage the cruise control when the brake is applied; if this switch malfunctions, it can prevent the system from engaging. Additionally, speed sensor issues can disrupt the cruise control's ability to maintain a steady speed, as the system relies on accurate speed readings to function correctly. Another potential problem is a blown fuse within the cruise control system; inspecting the fuse box for any blown fuses and replacing them can often resolve the issue. Furthermore, a malfunction in the throttle control system can hinder the cruise control's performance, as it needs to operate effectively to maintain the desired speed. Lastly, problems with the Electronic Control Module (ECM), which oversees various vehicle functions including cruise control, can lead to system failures. By systematically checking these components, you can effectively diagnose and potentially fix the cruise control problems in your INFINITI QX70.

How urgent is it to address the non-functioning cruise control in a 2017 INFINITI QX70?

When it comes to a non-functioning cruise control in a 2017 INFINITI QX70, understanding the urgency of the situation is crucial for both safety and vehicle maintenance. While it may not seem like an immediate emergency, neglecting this issue can lead to significant risks on the road. A malfunctioning cruise control system can cause erratic speed changes, which may compromise your control over the vehicle, especially during long drives. Moreover, the underlying problems that cause cruise control failure—such as issues with electronic systems or sensors—can escalate if left unaddressed, potentially leading to more extensive and costly repairs. For DIY enthusiasts, it’s advisable to conduct a thorough inspection of the cruise control system, checking for any visible signs of wear or malfunction. If you’re not comfortable diagnosing the issue yourself, seeking assistance from a qualified mechanic is a prudent step to ensure your vehicle remains safe and reliable. Addressing the problem promptly not only enhances your driving experience but also helps maintain the overall health of your INFINITI QX70.

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