2010 Smart Fortwo Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2010 Smart Fortwo and How to Fix Them

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Reviewed by
Devin Cabugcal
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 2010 Smart Fortwo 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 2010 Smart Fortwo 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 non-functioning cruise control in a 2010 Smart Fortwo?

To effectively diagnose the non-functioning cruise control in a 2010 Smart Fortwo, 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 halt the system's operation. Next, examine the cruise control buttons on the steering wheel to ensure they are responsive and not stuck, as malfunctioning buttons can prevent engagement. Following this, verify the speed sensors, which play a crucial role in the cruise control system; faulty sensors can lead to erratic behavior or complete failure. It’s also important to check the wiring connections associated with the cruise control system, as loose or damaged wires can disrupt signals. If these initial checks do not reveal the problem, utilize a diagnostic scanner to identify any error codes that may indicate specific issues. Finally, if all else fails, test the cruise control module itself, as a malfunction here can be the root cause of the problem. By following this structured diagnostic approach, you can efficiently identify and address the underlying issues affecting the cruise control functionality in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2010 Smart Fortwo?

When the cruise control in a 2010 Smart Fortwo ceases to function, several common problems may be at play. One of the first areas to investigate is the cruise control switch itself; if this switch is faulty, it can hinder the system's ability to engage or disengage properly. Additionally, a blown fuse within the cruise control circuit can lead to a complete failure of the system, making it essential to check the vehicle's fuse box for any damaged fuses. Another critical component to examine is the speed sensor, as any issues here can disrupt the cruise control's ability to maintain a consistent speed. Furthermore, the brake pedal switch plays a vital role in the system's safety features; if this switch malfunctions, it may prevent the cruise control from activating altogether. Lastly, problems with the throttle actuator can also interfere with the cruise control's operation, making it necessary to assess this component as well. By systematically checking these common issues, DIYers can effectively diagnose and resolve the cruise control problems in their Smart Fortwo.

How urgent is it to repair the non-functioning cruise control in a 2010 Smart Fortwo?

When evaluating the urgency of repairing the non-functioning cruise control in a 2010 Smart Fortwo, it is essential to recognize the potential consequences of inaction. While the malfunction may not pose an immediate threat like a brake failure, it can still lead to safety concerns, particularly during long drives where maintaining a consistent speed is crucial. A malfunctioning cruise control system can result in unexpected speed fluctuations, making it harder to control the vehicle and increasing the risk of accidents. Additionally, the convenience factor cannot be overlooked; a properly functioning cruise control system enhances driving comfort, especially on extended trips, allowing drivers to relax and focus on the road. Furthermore, timely repairs can positively impact the vehicle's resale value. Prospective buyers are often wary of vehicles with unresolved issues, and addressing the cruise control problem can help maintain the car's appeal in the market. Therefore, while it may not be an emergency, prioritizing the repair of the cruise control system is advisable to ensure safety, enhance driving enjoyment, and protect the vehicle's value.

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Troubleshooting Cruise Control Issues in 2010 Smart Fortwo