2009 Mercury Milan Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2009 Mercury Milan and How to Fix Them

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Reviewed by

Andrew Hajjar

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 2009 Mercury Milan 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 Mercury repair shops?

RepairPal Certified shops can diagnose and repair your 2009 Mercury Milan 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 2009 Mercury Milan 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 non-functioning cruise control in a 2009 Mercury Milan?

Addressing the non-functioning cruise control in a 2009 Mercury Milan should not be overlooked, as it can significantly impact your driving experience and safety. While it may not seem like an immediate emergency, the convenience of cruise control is particularly valuable during long drives, helping to reduce fatigue by maintaining a steady speed. Ignoring this issue could lead to discomfort and increased stress on the driver, who must constantly monitor and adjust their speed. Moreover, the underlying causes of a malfunctioning cruise control—such as blown fuses, faulty switches, or wiring problems—could indicate more serious electrical issues within the vehicle. These problems, if left unaddressed, may escalate and lead to costly repairs or even compromise the vehicle's overall performance and safety. Therefore, it is advisable to diagnose and fix the cruise control issue promptly to ensure a comfortable and safe driving experience, especially on longer journeys where this feature is most beneficial.

Related 2009 Mercury Milan Questions

See what others are asking about their Mercury Milan. Get answers from RepairPal's community of auto experts and enthusiasts.

Cruise Control Performance Problem

Since September 2014, I have experienced inconsistent cruise control performance: sometimes it works, sometimes it does not work. This problem first appeared when driving in higher altitudes (1500+ feet). Now, the problem also appears at the lower altitudes (300 feet). Maybe humidity contributes to the problem. The cruiser control turns on/off okay using the on/off button. However, when the car is in motion, the cruise control does not always engage using the -/+ buttons. I know that when the car is stopped, the cruise control does not engage using the -/+ buttons; this makes sense because the cruise control can not set a speed. It is like the cruise control does not always know when the car is in motion. Has anybody else experienced this problem? If yes, do you know the cause/resolution of the problem?

Cruise Control Performance Problem

I have a 2010 Mercury Milan Premier (4 cylinders). Since September 2014, I have experienced inconsistent cruise control performance: sometimes it works, sometimes it does not work. This problem first appeared when driving in higher altitudes (1500+ feet). Now, the problem also appears at the lower altitudes (300 feet). Maybe humidity contributes to the problem. The cruiser control turns on/off okay using the on/off button. However, when the car is in motion, the cruise control does not always engage using the -/+ buttons. I know that when the car is stopped, the cruise control does not engage using the -/+ buttons; this makes sense because the cruise control can not set a speed. It is like the cruise control does not always know when the car is in motion. Has anybody else experienced this problem? If yes, do you know the cause/resolution of the problem?

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