Why is my Dodge Caliber cruise control not working?

Most often the issue comes from a blown fuse, a faulty brake-light switch, or a failing cruise-control actuator. A quick check of fuses and the brake switch can fix many cases.

The Dodge Caliber’s cruise control depends on a working electrical circuit, a reliable vehicle speed signal, and a functioning throttle control system. When any part of that chain reports a fault or fails to respond, the system will disengage to prevent unintended throttle changes. This article outlines common causes, simple home checks, and when to seek professional diagnostics.

Quick checks you can perform at home

These foundational checks address the most frequent and easiest-to-fix reasons cruise control won’t engage or stay on.

Electrical fuses and power supply

Inspect the fuse box for a blown cruise-control fuse and related power fuses. A blown fuse will cut power to the cruise control module and throttle servo, preventing engagement.

• Look for a fuse labeled CRUISE or CC in the interior or under-hood fuse panels.


• Check for signs of a blown fuse (a broken filament, melted plastic) and replace with the correct amperage if needed.


• Verify battery voltage is healthy; low voltage can cause intermittent cruise control behavior.

If the fuse is intact and voltage is normal, proceed to other checks.

Brake switch and pedal wiring

The cruise control system disables when the brake pedal is pressed or when the brake switch is faulty. A faulty switch can cause the system to disengage unexpectedly or fail to engage at all.

• Test that the brake lights reliably illuminate when you press the pedal.


• Inspect the brake light switch for proper adjustment or signs of wear and replace if needed.


• Look for damaged wiring or loose connectors around the switch.

If the brake switch is working correctly and the lights function normally, move on to the next check.

Steering wheel control stalk and related wiring

The cruise-control on/off switch and its wiring must communicate reliably with the cruise-control module. A worn stalk or damaged connector can prevent engagement.

• Operate the cruise-control switch to confirm it feels normal and returns to its resting position.


• Check for corrosion or loose connections at the steering-column connector.


• If you notice an intermittent signal, the switch or wiring may need replacement.

Persistent issues after these checks suggest a deeper electrical or sensor fault requiring further diagnostics.

Vehicle speed signal and throttle control basics

Cruise control relies on a clean speed signal from the vehicle speed sensor and a responsive throttle control system. If the speed signal is erratic or the throttle body reports faults, cruise control may not engage.

• Ensure the speedometer functions correctly and responds to driving speed.


• Run a diagnostic scan to look for throttle/ETC (electronic throttle control) codes.


• Inspect wiring between the throttle body, cruise control actuator, and engine control module for damage or corrosion.

If speed readings are stable and there are no throttle-related codes, you can proceed to deeper diagnostics or consider professional help if the issue persists.

Deeper diagnostics and potential fixes

When quick checks don’t reveal a fix, more detailed diagnostics target the cruise control system, throttle control, and related electronics.

Cruse control actuator and throttle system assessment

The actuator that modulates throttle position under cruise control control can fail or become unreliable, especially with higher mileage. This is a common source of non-engagement.

• Scan for advanced diagnostic trouble codes (DTCs) related to the throttle control or cruise control system.


• If codes indicate throttle or ETC faults, service the throttle body or replace the actuator as indicated by the technician.

Successful resolution often depends on a precise diagnostic code to confirm the faulty component.

Wiring harnesses and connectors to the cruise module

A corroded or loose connection to the cruise control module or to the throttle body can cause intermittent or no engagement.

• Inspect the main harness and connectors for signs of wear, moisture, or damage.


• Reseat connectors and address any damaged wires with proper repair techniques.


• Consider a professional electrical check if harness issues are suspected.

Electrical repairs should be performed by someone familiar with automotive wiring to prevent further issues.

ECU synchronization and service bulletins

In some cases, a software update or recalibration from a dealership can address cruise-control glitches that aren’t tied to a single component.

• Check for relevant Technical Service Bulletins (TSBs) or recalls for your VIN that mention cruise control or throttle control.


• Have a dealership update or reprogram the engine control module or cruise-control module if indicated by the service bulletin.

Software-related fixes are increasingly common and can resolve intermittent behavior without hardware replacement.

When to seek professional help

If the cruise control still won’t engage after these checks, or if the Check Engine or cruise indicator lights come on, schedule a diagnostic with a qualified technician or Chrysler/Dodge dealership. Because cruise control interacts with throttle and braking systems, a professional assessment helps ensure safety and a proper repair.

Summary

Crucise control problems in a Dodge Caliber most often boil down to electrical issues (fuses or brake switch), a faulty stalk or wiring, or a failing throttle-control actuator. Start with quick, house-based checks of fuses, brake lights, and the steering wheel switch, then move to deeper diagnostics if needed. If in doubt, seek professional diagnostics to avoid unsafe driving conditions and ensure the system is properly repaired.

What is the main cause of cruise control not working?

Common reasons for cruise control not working include a blown fuse, a faulty brake light switch, or a bad speed sensor. Other issues can be related to electrical problems, such as damaged wiring or a faulty cruise control switch, or a Check Engine light being on. For adaptive cruise control, a dirty camera or sensors can also be the cause. 
You can watch this video to learn about the common reasons why cruise control might not be working: 58sMaxTheCarGuyYouTube · Feb 24, 2025
Common causes

• Blown fuse: A blown fuse will interrupt the electrical current to the cruise control system, preventing it from working. 
• Faulty brake light switch: The cruise control system is designed to disengage when you press the brake pedal. A faulty switch can send a continuous "brake" signal, or the cruise control may not work if it can't detect the brake pedal being pressed. 
• Bad speed sensor: The speed sensor provides information to the cruise control system. If it malfunctions, the system will stop working because it doesn't have accurate speed data. 
• Electrical issues: Damaged or loose wiring, or a faulty cruise control switch on the steering wheel, can prevent signals from being sent correctly, as can a problem with the vehicle's main computer or electronic control module. 
• Check Engine light is on: A problem with the engine or a related system will often automatically disable the cruise control as a safety precaution. 
• Dirty or blocked camera/sensors (Adaptive Cruise Control): If you have adaptive cruise control, dirt or obstructions on the front-facing camera or radar sensors can prevent the system from working correctly. 
• Vacuum leak (older vehicles): Some older cars use a vacuum-operated system. A leak in this system can cause the cruise control to fail. 

This video demonstrates how to check the brake light switch: 57sAuto Repair GuysYouTube · Oct 7, 2019

How do I reset my cruise control?

How to Reset Adaptive Cruise Control

1. Step 1: Consult Your Vehicle's Owner's Manual.
2. Step 2: Start Your Vehicle.
3. Step 3: Access the ACC Menu.
4. Step 4: Select 'Reset' or 'Default'
5. Step 5: Press and Hold the Reset Button.
6. Step 6: Confirm the Reset.
7. Step 7: Monitor System Reset.
8. Step 8: Verify ACC Reset.

Why is my cruise control not working on my 2009 Dodge Caliber?

The most common reasons a Dodge Caliber 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.

What is the most common problem with Dodge Caliber?

Common Dodge Caliber Problems

1. Transmission Issues. One of the most common complaints about the Dodge Caliber is transmission problems.
2. Engine Problems.
3. Suspension and Steering Problems.
4. Electrical Issues.