2017 INFINITI Q70 Cruise Control Isn't Working

Fixing Cruise Control Issues in the 2017 INFINITI Q70

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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 2017 INFINITI Q70 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 Q70 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 Q70?

To effectively diagnose the non-functioning cruise control in your 2017 INFINITI Q70, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse located 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, which is designed to disengage the cruise control when the brakes are applied; if this switch is faulty, it may inadvertently disable the system. To gain further insights, utilize an OBD-II scanner to identify any error codes that may indicate specific problems within the cruise control system. Finally, consult your owner's manual for tailored troubleshooting steps and additional information specific to your vehicle. By following this structured diagnostic approach, you can efficiently identify and address the underlying issues affecting your cruise control system.

What are the common problems that could cause the cruise control to stop working in a 2017 INFINITI Q70?

When troubleshooting cruise control issues in a 2017 INFINITI Q70, it's essential to understand the common problems that may lead to its malfunction. One of the primary culprits is a faulty brake light switch, which can inadvertently signal the system to disengage, mimicking a brake application. Additionally, a malfunctioning speed sensor can disrupt the system's ability to maintain a constant speed, leading to erratic behavior. It's also wise to check for a blown fuse, as this can interrupt the electrical circuit necessary for cruise control operation. Problems within the throttle control system, such as a defective throttle position sensor, can further complicate matters by preventing the system from adjusting speed correctly. Moreover, issues with the Electronic Control Module (ECM) can hinder the overall functionality of the cruise control system. Lastly, vacuum leaks in the engine can adversely affect the cruise control's performance. By systematically addressing these potential issues, drivers can effectively diagnose and resolve cruise control malfunctions, restoring the convenience of this feature.

How urgent is it to address the malfunctioning cruise control in a 2017 INFINITI Q70?

Addressing a malfunctioning cruise control system in your 2017 INFINITI Q70 is not just a matter of convenience; it is a critical safety concern that requires immediate attention. A malfunction can lead to unexpected acceleration or deceleration, significantly increasing the risk of accidents on the road. Moreover, a faulty cruise control system can disrupt your driving comfort, making it challenging to maintain a steady speed during long trips, which can lead to fatigue and decreased focus. Additionally, neglecting this issue can result in further damage to the cruise control system and other related components, ultimately affecting the overall performance of your vehicle. It is essential to consult your vehicle's manual or reach out to an authorized INFINITI service center to assess the urgency of the situation. Taking prompt action not only ensures your safety but also enhances your driving experience and preserves the integrity of your vehicle.

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2017 INFINITI Q70 Cruise Control Not Working | RepairPal