2021 Chrysler 300 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2021 Chrysler 300 and How to Fix Them

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Reviewed by
Bo Fader
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 2021 Chrysler 300 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 2021 Chrysler 300 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 cruise control issue in my 2021 Chrysler 300?

To effectively diagnose the cruise control issue in your 2021 Chrysler 300, start with a systematic approach that prioritizes simpler checks before moving on to more complex diagnostics. Begin by inspecting the cruise control fuse located in the fuse box, as a blown fuse is a common and easily fixable problem that can disrupt functionality. Next, examine the cruise control buttons on your steering wheel to ensure they are operational; faulty buttons can prevent the system from engaging. Following this, verify the speed sensor's performance, as it is essential for the cruise control to function correctly. If these initial checks do not resolve the issue, utilize an OBD-II scanner to identify any error codes that may indicate specific problems within the cruise control system. Additionally, inspect the vacuum lines connected to the cruise control module for any leaks or damage, as these can also affect performance. If all else fails, consider testing the cruise control module itself, as it may require inspection or replacement if found to be faulty. By following this structured diagnostic approach, you can efficiently identify and address the cruise control issue in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2021 Chrysler 300?

When troubleshooting the cruise control system in a 2021 Chrysler 300, it's essential to understand the common problems that may lead to its failure. One of the primary culprits is a faulty brake light switch, which can prevent the cruise control from engaging since the system is designed to deactivate when the brake pedal is pressed. Additionally, issues with the speed sensor can disrupt the system's ability to maintain speed, as it relies on accurate readings to function correctly. A blown fuse can also be a straightforward yet often overlooked reason for cruise control failure, cutting off power to the system entirely. Furthermore, a defective cruise control module may result in the system not responding when activated, while problems with the throttle control, such as a malfunctioning throttle position sensor, can hinder the cruise control's ability to sustain a consistent speed. Identifying these issues can help you determine whether a DIY fix is possible or if professional assistance is needed to restore your vehicle's cruise control functionality.

How urgent is it to address the non-functioning cruise control in a 2021 Chrysler 300?

When it comes to a non-functioning cruise control in a 2021 Chrysler 300, the urgency of addressing the issue cannot be overstated. While it may not seem like an immediate emergency, a malfunctioning cruise control system can lead to significant safety risks, particularly during long drives or highway travel where maintaining a consistent speed is crucial. Ignoring this problem could indicate deeper issues within the vehicle's electrical system or sensors, which, if left unresolved, may escalate into more severe and costly repairs. Moreover, a properly functioning cruise control not only enhances driving comfort but also contributes to better fuel efficiency, making it an essential feature for many drivers. Therefore, it is advisable for DIY enthusiasts to investigate the root cause of the malfunction promptly, as this proactive approach can prevent further damage and ensure the vehicle remains safe and reliable on the road.

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2021 Chrysler 300 Cruise Control Issues & Repair Costs