If you’re facing issues with your Jeep Grand Cherokee’s remote start, you’re not alone. This common problem can be frustrating, but it’s often solvable with the right approach. This comprehensive guide will delve into the potential causes and provide step-by-step troubleshooting tips to help you resolve the issue.
Causes of Jeep Grand Cherokee Remote Start Failure
Determining the underlying cause of your Jeep’s remote start failure is crucial for effective troubleshooting. Common issues include:
Malfunctioning Key Fob: Dead batteries, damaged contacts, or software glitches in the key fob can prevent remote start from working.
Electrical Issues: Faulty wiring, loose connections, or a malfunctioning remote start module can disrupt the electrical signals necessary for remote start.
Security System Problems: The security system may not be recognizing the key fob or may be triggered by an open door or hood.
Starter or Ignition Switch Malfunctions: A faulty starter or ignition switch can prevent the engine from starting, even with a successful remote start signal.
Fuel System Issues: A clogged fuel filter or restricted fuel pump can prevent the engine from receiving enough fuel to start.
Troubleshooting Jeep Grand Cherokee Remote Start Issues
Key Fob-Related Issues
Check Spare Key Fob: If the Auto Start button on your key fob isn’t working, try using the spare fob to rule out a key fob issue.
Inspect Fob Contacts: Disassemble the key fob and examine the contacts for damage or debris. Clean any contacts as necessary.
Check Electrical Connections: Inspect all electrical connections related to the remote start system, including battery terminals, wiring, and the remote start module.
Read Error Code: After an unsuccessful remote start attempt, check the instrument cluster screen for an error code, which may indicate an open hood or door, low fuel, or other issues.
Reset Ignition: After a failed remote start attempt, start the ignition to reset the system and allow for subsequent remote starts.
Mechanical Issues
Check Fuel System: Ensure there is sufficient fuel in the tank and that the fuel filter is clean and unobstructed.
Inspect Starter and Ignition Switch: If the engine fails to start after a successful remote start signal, consider having the starter and ignition switch inspected.
Additional Information
2016 Jeep Models: The remote start functionality in 2016 Jeep models is similar to that described for 2019 models. Therefore, the troubleshooting steps outlined above are applicable to your 2016 Jeep.
Dealership or Mechanic: If you’re unable to resolve the issue yourself, it’s recommended to consult a qualified mechanic or dealership for professional diagnosis and repair.
Warranty Coverage: Check if your Jeep is still under warranty, as the issue may be covered and repaired at no cost.
By following these troubleshooting steps, you can increase your chances of resolving your Jeep Grand Cherokee remote start issue. Remember, identifying the underlying cause is key, and if necessary, don’t hesitate to seek professional assistance.
Why is my Jeep Grand Cherokee remote start not working?
Answer: The remote start may not be working due to potential causes such as faulty electrical wiring or connections, issues with the security system, software glitches or module malfunctions, a faulty starter or ignition switch, restricted fuel pump or fuel filter, weak battery or loose connections, a damaged remote start module, obstructed or faulty signal antenna, or the need for computer reprogramming.
What can I do if only the Auto Start button on my key fob is malfunctioning?
Answer: If only the Auto Start button on the key fob is not working, try using the spare key fob to rule out fob-related issues. Inspect the original fob’s contacts for any debris or damage and clean as necessary. Check the instrument cluster screen for error codes after an unsuccessful remote start attempt, and consider starting the ignition to reset the system. Ensure the Check Engine light is not illuminated, as this will prevent remote start from operating.
Troubleshooting Remote Start Issues
Characteristics, Advice, or Key Points
Check Alternative Key Fob
Use the spare key fob to determine if the issue is fob-related. If the spare fob works, the original fob may have malfunctioning contacts or other issues.
Inspect Fob Contacts
Carefully disassemble the original fob and check the contacts for debris or damage. Clean any contacts as necessary.
Verify Remote Start Error Code
After an unsuccessful remote start attempt, check the instrument cluster screen for an error code. Common errors include low fuel, open hood or door, or a lit Check Engine light.
Requirement for Ignition Reset
If a failed remote start attempt occurs, start the ignition to reset the system. This will allow subsequent remote starts.
Check Engine Light
Ensure the Check Engine light is not illuminated, as this will prevent remote start from operating.
