Hey guys, today we’re going to address an issue that many 2017 Dodge Charger RT owners might face: the “Key Fob Has Left The Vehicle” error. This error can be particularly frustrating, especially with a keyless entry system that should ideally offer seamless convenience. Let’s dive into diagnosing and fixing this problem.
Understanding the Keyless Entry System
Your 2017 Dodge Charger RT features a keyless entry system with touch sensors under the door handles. This system is designed to detect the presence of the key fob and allow you to unlock and start your vehicle without physically inserting the key. However, if the system is not functioning correctly, it can lead to errors such as “Key Fob Has Left The Vehicle.”
Symptoms and Observations
- Error Message: Upon opening and closing the door, you receive a “Key Fob Has Left The Vehicle” error message.
- Intermittent Sensor Function: Touch sensors under the door handles do not work unless the key fob is placed near specific pillars on the vehicle.
- Key Placement: The error does not appear if the key is placed in a specific spot on the car’s interior (between the tab near the center console).
- Start Issue: The car only starts when the key fob is placed in a specific location near the center console.
Potential Causes
- Key Fob Battery: A weak or dying battery in the key fob can cause communication issues with the vehicle.
- Antenna Issues: The car’s internal antennas responsible for detecting the key fob might be malfunctioning.
- Interference: Other electronic devices or metal objects can interfere with the key fob signal.
- Software Glitches: Sometimes, software issues in the car’s keyless entry system can cause these errors.
- Faulty Sensors: The touch sensors under the door handles may be faulty or misaligned.
- RF Module Issues: The Radio Frequency (RF) module that communicates with the key fob could be defective.
Step-by-Step Troubleshooting
Step 1: Check the Key Fob Battery
- Replace the Battery: Replace the key fob battery with a new one. This is often the simplest and most overlooked solution.
- Re-Test: After replacing the battery, test if the error persists when opening and closing the door.
Step 2: Inspect the Antennas
- Locate the Antennas: The primary antenna for the keyless entry system is often located near the center console or under the dashboard.
- Visual Inspection: Check for any visible damage or loose connections.
- Professional Diagnosis: If no issues are apparent, consider having a professional mechanic use diagnostic tools to check the antenna’s functionality.
Step 3: Test for Interference
- Remove Electronic Devices: Remove any electronic devices or metal objects from around the key fob and the vehicle’s interior.
- Re-Test: See if the error message still appears when opening and closing the door.
Step 4: Perform a Software Reset
- Disconnect the Battery: Disconnect the vehicle’s battery for about 10 minutes to reset the car’s electronic systems.
- Reconnect and Test: Reconnect the battery and test if the error persists.
Step 5: Check the Touch Sensors
- Inspect the Sensors: Inspect the touch sensors under the door handles for any visible damage or dirt.
- Clean the Sensors: Clean the sensors carefully to ensure there is no obstruction.
- Test Sensor Function: With the key fob in your pocket, test if the touch sensors are working correctly.
Step 6: Inspect the RF Module
- Locate the RF Module: The RF module is usually located near the rear of the vehicle or under the dashboard.
- Professional Diagnosis: Have a professional mechanic check the RF module for faults or defects.
Additional Tips
- Spare Key Fob: Try using a spare key fob to see if the problem persists. This can help determine if the issue is with the key fob itself.
- Software Update: Check if there are any software updates available for your vehicle that address keyless entry system issues.
- Dealership Assistance: If the problem continues, it may be best to visit a dealership for a thorough diagnosis and repair.
Conclusion
Dealing with a Key Fob Has Left The Vehicle error can be frustrating, but with systematic troubleshooting, you can often identify and fix the issue. Start with the simple solutions like checking the key fob battery and proceed to more complex diagnostics if needed. If you’ve tried everything and the problem persists, it’s advisable to seek professional help to ensure your keyless entry system functions correctly.
