The Jeep Grand Cherokee is known for its luxurious appeal, rugged performance, and advanced technology, including the popular remote start feature. However, when this feature fails to function, it can be frustrating for many owners. In this article, we will explore the various reasons why your Grand Cherokee remote start might not be working, how to troubleshoot these issues, and the steps you can take to restore this convenient functionality.
Understanding the Remote Start System in Grand Cherokee
Before diving into troubleshooting, it is essential to understand how the remote start system works in the Grand Cherokee. The remote start feature allows you to start your vehicle from a distance, typically using your key fob or a mobile app. This not only warms up or cools down the vehicle’s interior before you get in but also makes your driving experience more comfortable, especially in extreme weather conditions.
The system operates through a series of components, including:
- The key fob or mobile app used for activation
- The vehicle’s onboard computer
- The ignition system
- The security system, which prevents unauthorized access
Each component must function correctly for the remote start feature to work smoothly. When things go wrong, finding the cause is the first step in resolving the issue.
Common Reasons Your Grand Cherokee Remote Start May Not Be Working
Understanding potential issues can help in the troubleshooting process. Here are some of the common reasons your remote start may not be functioning:
Battery Issues
A dead or weak battery in your key fob is one of the most common culprits. The remote start system relies on signals from the key fob, and if the battery is low, it may not communicate effectively with the vehicle.
Solutions for Battery Issues
Check the Key Fob Battery: If you notice that the buttons on your key fob are unresponsive, replace the battery with a new one and test the remote start functionality.
Inspect the Vehicle Battery: A weak vehicle battery may not provide enough power for the remote start feature. Ensure your Grand Cherokee battery is fully charged and in good condition.
Incorrect Settings or Activation Issues
Sometimes, the remote start feature may not activate due to incorrect settings or improper procedures. Make sure you are following the correct steps to use the remote start, as outlined in the owner’s manual.
Steps for Proper Activation
Ensure All Doors are Closed: The remote start feature will not activate if the doors are open or ajar. Double-check that all doors, including the trunk, are securely closed.
Verify the Vehicle is in Park: The vehicle must be in ‘Park’ mode for the remote start to function. If the transmission is not in ‘Park,’ the feature will not work.
Security System Interference
The Grand Cherokee’s security system may sometimes interpret the remote start attempt as a security risk. If the system detects unauthorized access, it may prevent the engine from starting remotely.
How to Check for Security System Issues
Look for Warnings on the Dashboard: If there are any warnings displayed on the dashboard, they may provide clues about security system malfunctions.
Test the Regular Start Function: If the vehicle starts without issues using the ignition key, it may indicate a problem with the remote start system rather than with the vehicle itself.
Software Glitches and Updates
Software issues can affect the performance of many electronic systems within the Grand Cherokee, including the remote start feature. Occasionally, the vehicle’s software might need an update, which could solve ongoing issues.
Resolving Software Glitches
Consult Your Dealership: If you suspect a software issue, visit your local Jeep dealership to check for available updates or reinstallations that could help resolve the problem.
Perform a System Reset: Sometimes, performing a simple reset of the vehicle’s electronics can resolve temporary glitches. Refer to the owner’s manual for guidance on resetting the system.
Troubleshooting Steps for Remote Start Problems
If you find that your remote start feature is still non-functional after reviewing potential causes, here are additional troubleshooting steps to consider:
Inspect Your Key Fob
While a dead battery is the most common issue, the key fob itself can also be damaged.
- Check for Physical Damage: Look for cracks, broken buttons, or water damage.
- Try a Spare Key Fob: If available, use a spare to see if the issue persists.
Check the Remote Start System
The remote start system may be malfunctioning.
Listen for a Response: When you press the remote start button, listen carefully for any sounds from the vehicle, like the ignition attempting to start. If you hear nothing, there may be a disconnect in the system.
Look for Error Codes: If you have access to an OBD-II scanner, you can check for error codes that may suggest what’s wrong with the remote start system.
Professional Assistance
If you have gone through the troubleshooting steps and your Grand Cherokee remote start still isn’t functioning, it may be time to seek professional assistance.
Finding a Qualified Technician
It is crucial to find a qualified technician who specializes in Chrysler or Jeep vehicles to accurately diagnose and repair the issue. Here are some tips for finding assistance:
Visit an Authorized Jeep Service Center: These technicians have specific training and software access to diagnose factory-installed systems.
Check Reviews and Recommendations: Look for customer reviews and testimonials to find a trustworthy mechanic familiar with Grand Cherokee models.
Preventive Measures for Future Issues
Once your remote start is working again, you might be wondering how to prevent similar issues from occurring in the future. Here are a few preventative measures you can take:
Regular Maintenance
Schedule regular maintenance check-ups for your vehicle. Keeping your Grand Cherokee’s electronics and battery in good condition can help prevent future problems with the remote start and other functionalities.
Keep Your Key Fob in Good Condition
Ensure your key fob is in good condition by avoiding exposure to extreme temperatures, water, and excessive physical stress. You might consider using a protective case for added security.
Conclusion
A malfunctioning remote start feature in your Grand Cherokee can be more than just an inconvenience; it can disrupt your daily routine. By understanding the common causes and following the troubleshooting steps outlined in this guide, you can effectively diagnose the problem and restore this useful feature. Remember that regular maintenance and being mindful of your vehicle’s electronic systems can go a long way in preventing future issues. If problems persist, don’t hesitate to seek professional assistance to get back to enjoying the comfort and convenience that the Grand Cherokee promises.
What are the common reasons for a Grand Cherokee remote start not functioning?
The most common reasons for a Grand Cherokee remote start not functioning include issues with the key fob battery, problems with the vehicle’s security system, or faulty wiring. If the key fob’s battery is weak or dead, the signal may not reach the vehicle. Additionally, the security system may prevent the remote start from working if it detects potential tampering or a problem with the ignition system.
Sometimes, wiring issues or connections in the remote start system can cause it to malfunction. It’s essential to inspect the wiring and ensure that everything is connected correctly. Environmental factors, such as extreme weather or obstructions between the key fob and the vehicle, can also affect the signal strength.
How can I troubleshoot the key fob battery issue?
To troubleshoot the key fob battery issue, start by checking the battery level in your key fob. Many key fobs have a small battery that can be replaced with a simple tool, such as a coin or a small screwdriver. If the fob is unresponsive, opening it up and inspecting or replacing the battery should be your first step.
After replacing the battery, test the remote start feature again. If it works, then the issue was likely due to the battery. If not, consider whether there might be other underlying problems with the fob or the vehicle’s systems that may require further investigation.
What should I do if the remote start feature was working and suddenly stopped?
If the remote start feature was previously functioning and suddenly stopped, there may have been a triggering event. This could include an issue with the vehicle’s battery, blown fuses, or even a software glitch in the onboard computer. Start by checking the vehicle’s battery and ensuring it is charged and functioning well.
If the battery and wiring appear fine, inspect the fuses related to the remote start system. If any fuses are blown, they will need to be replaced. In some cases, a simple reset of the vehicle’s computer system might restore the remote start functionality.
Could a recent vehicle service impact the remote start function?
Yes, a recent vehicle service can impact the remote start function, especially if the battery was disconnected or if any electronic systems were reset. Mechanics may inadvertently alter wiring connections or settings during routine maintenance. After servicing, it’s possible that the remote start has been disabled or not connected correctly.
If you suspect that service work might have impacted the remote start feature, revisit the service center to ensure that nothing was altered or left disconnected. They should be able to check the connections and settings to verify that everything is in working order.
Is there a specific temperature range that affects remote start operation?
Yes, temperature can significantly affect the remote start operation in vehicles like the Grand Cherokee. Most remote start systems are designed to function within a certain temperature range; extreme cold, typically below 0°F (-18°C), can create issues with the battery’s performance and the functionality of the key fob.
In extremely hot weather, the vehicle’s sensors may also behave unpredictably, impacting the remote start. If you’re attempting to use the remote start in extreme temperatures, consider any environmental factors that may be interfering with its operation.
What if the lights blink but the engine doesn’t start?
If the lights blink but the engine does not start, it is a sign that the remote start system is attempting to engage but is unable to do so, likely due to an underlying issue. The problem could be related to the vehicle’s safety features, such as the brake pedal not being fully pressed or an issue with the ignition system. Ensure that the vehicle is in the proper gear and that all doors are closed securely.
Another possibility is that the vehicle has a problem with the battery or fuel system. Checking that the battery is charged and that there’s enough fuel in the tank may resolve the issue. If the problem persists after these checks, it might be time to consult a professional technician for a thorough diagnostic.
How can I reset the remote start system on my Grand Cherokee?
Resetting the remote start system on your Grand Cherokee usually involves specific sequences of button presses on your key fob or using the vehicle’s onboard settings. Start by disconnecting the vehicle battery for a few minutes, which can reset the vehicle’s systems, including the remote start functionality.
After reconnecting the battery, follow the key fob instructions in your owner’s manual for resetting the remote start. This process may vary based on the model year, so it’s essential to reference the specific manual for detailed guidance. If necessary, reach out to a dealership or mechanic for assistance.
When should I seek professional help for my remote start issue?
You should seek professional help for your remote start issue if you have tried basic troubleshooting steps without success. If the problem persists despite replacing the key fob battery, checking fuses, and ensuring the vehicle is in optimal working condition, it might signify a more complex issue that requires diagnostics.
Additionally, if you notice any unusual behavior from your vehicle, such as warning lights or other systems failing, it’s crucial to have it evaluated by a professional. Qualified technicians have the tools and knowledge to diagnose and resolve issues that could affect the remote start functionality, ensuring your vehicle operates safely and effectively.