2018 Lexus NX300 Cruise Control Isn't Working

Troubleshooting Common Issues with Cruise Control in Your 2018 Lexus NX300 and How to Fix Them

Find Repair Location

Reviewed by

Devin Cabugcal

Written by RepairPal Car Genius

Updated January 14, 2025

30% chance it's the

Sensor

25% chance it's the

Control Module

25% chance it's the

Throttle

20% chance it's

Something else

The most common reasons a 2018 Lexus NX300 cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.

Sensor: A faulty sensor can lead to incorrect readings, causing issues with engine performance or triggering warning lights on the dashboard.
Control Module: A faulty control module can result in 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 acceleration and poor engine 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.

What are the best Lexus repair shops?

RepairPal Certified shops can diagnose and repair your 2018 Lexus NX300 electronics and electrical issues. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

How much does it cost to fix a 2018 Lexus NX300 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.

How urgent is it to address the malfunctioning cruise control in a 2018 Lexus NX300?

Addressing a malfunctioning cruise control in a 2018 Lexus NX300 is not just a matter of convenience; it is a critical safety concern that should be prioritized. When cruise control fails, it can lead to increased driver fatigue, as maintaining speed manually becomes more taxing on long journeys. Moreover, neglecting this issue can result in more severe problems, such as erratic vehicle behavior or complete system failure, which could compromise your safety on the road. Common culprits like a blown fuse or a faulty brake switch can escalate into more complex repairs if left unchecked, potentially leading to costly fixes that could have been avoided with timely attention. Therefore, if you notice any signs of malfunction, such as the cruise control not engaging or maintaining speed, it is essential to investigate and resolve the issue promptly to ensure a safe and comfortable driving experience.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.

Find a Certified ShopThe largest certified network of auto repair shops

Get a Fair Price EstimateHundreds of repair estimates honored nationwide

Check for Safety RecallsUse VIN or license plate to see if your vehicle is affected

Exceptional warranty

Shops offer at least a 12-month or 12,000-mile warranty.

Satisfied customers

We ensure high satisfaction through verified customer reviews.

Transparent pricing

You'll get a Fair Price Guarantee on all RepairPal estimates.

Millions trust us for auto repair — RepairPal Certified^® locations must pass a rigorous approval process to ensure quality, customer satisfaction, and fair pricing.

Find a Repair Location