The 2018 Jeep Grand Cherokee is a powerful SUV that combines luxury, performance, and practicality. Its remote start feature offers undeniable convenience, allowing you to start your vehicle from a distance, ensuring your ride is warm in winter or cool in summer. But what happens when you’re ready to enjoy that perk, and the remote start isn’t functioning? In this article, we will dive deep into the common reasons why the remote start on your 2018 Jeep Grand Cherokee may not be working, as well as potential solutions, maintenance tips, and troubleshooting steps.
Understanding the Remote Start System in the 2018 Jeep Grand Cherokee
The remote start system in the 2018 Jeep Grand Cherokee is a sophisticated blend of technology and safety features. It allows drivers to start their vehicle without being physically present, which not only provides comfort but also security.
How the Remote Start Feature Works
To give you a better grasp of this feature, here’s a brief overview of how it functions:
- Key Fob Communication: The remote start system is activated through the key fob, which sends a signal to the vehicle when the start button is pressed twice within a short period.
- Vehicle Status Detection: The system checks for the vehicle’s status, including the gear position, door status, and overall vehicle conditions.
- Starting the Engine: If all conditions are met, the engine will start, allowing the vehicle to idle for a predetermined time (typically 15 minutes) before shutting down.
Common Issues with Remote Start in the 2018 Jeep Grand Cherokee
Despite its efficiency, several issues can hinder the remote start capability in your Jeep Grand Cherokee. Understanding these common problems is the first step toward diagnosis and repair.
1. Key Fob Battery Failure
One of the simplest yet most overlooked problems is a depleted key fob battery. If the battery is weak or dead, the signal may not reach your vehicle, preventing the remote start from functioning.
How to Check Key Fob Battery Status
To check whether the key fob is the issue:
- Try starting the vehicle with the fob inserted in the ignition.
- If the vehicle starts, the fob battery is likely the problem.
To replace the battery:
- Open the key fob using a small flathead screwdriver.
- Replace the old battery with a new CR2032 battery.
- Reassemble the fob and test the remote start feature again.
2. Vehicle Battery Issues
In some cases, a weak vehicle battery can interfere with the remote start system. If your Jeep struggles to start using the ignition key, it’s likely an issue with the vehicle battery.
Signs of a Failing Vehicle Battery
Look for the following signs:
- Dim dashboard lights.
- Slow engine crank when starting.
- Warning lights on the dashboard.
If you suspect a battery issue, have the battery tested or replaced if necessary.
3. Incorrect Vehicle Settings
The remote start feature can be disabled through the vehicle’s settings. Check your system settings through the Uconnect infotainment system to ensure the remote start is enabled.
How to Enable Remote Start
To check your settings:
- Turn on the ignition without starting the engine.
- Access the Settings menu on your Uconnect system.
- Navigate to the “Remote Start” section and ensure it is toggled on.
4. Faulty Antenna or Receiver
The remote start system relies on an antenna to receive signals from the key fob. If the antenna or receiver is damaged, the signal may not be detected. Signs of this issue may include intermittent issues with the key fob functions.
Signs of Antenna or Receiver Issues
- Remote start works occasionally or only when close to the vehicle.
- Other key fob functions (like unlocking doors) are also inconsistent.
If you suspect this is the issue, consult a qualified technician for diagnostics.
Troubleshooting Steps for Remote Start Issues
Before you seek professional help, you may want to follow these troubleshooting steps to identify or remedy the problem.
Step 1: Check for Error Messages
Use your vehicle’s onboard diagnostics system to check for any error codes that may indicate a problem with the remote start system. You can do this by:
- Connecting an OBD-II scanner to the vehicle’s diagnostics port.
- Reviewing any error codes related to the remote start functionality.
Step 2: Inspect Fuse Related to Remote Start
If the remote start feature isn’t activating at all, check the vehicle fuses. The remote start system has a dedicated fuse that may blow, interrupting functionality.
How to Inspect Fuses
- Access the fuse box, usually located under the dashboard or in the engine compartment.
- Identify the fuse labeled for the remote start (refer to your owner’s manual).
- Inspect the fuse for any signs of damage or breakage.
- Replace if necessary.
Step 3: Listen for Relay Click
When attempting to engage the remote start, listen for a clicking sound coming from the relay. If you hear no sound, the remote start system might not be activating.
Professional Help: When to Seek Assistance
If you’ve gone through these troubleshooting steps and the remote start feature is still malfunctioning, it may be time to consult a professional technician.
1. Diagnostic Assessment
A professional can provide a comprehensive diagnostic assessment of the remote start system, which may include:
- Testing the key fob functionality.
- Examining the vehicle’s electrical systems.
- Checking for software updates that could affect the remote start feature.
2. Addressing Software Issues
Sometimes, remote start issues might stem from software glitches in the vehicle’s system. Technicians can reprogram the system or update software to resolve such issues.
Maintenance Tips to Ensure Your Remote Start Works Smoothly
For ongoing functionality, consider these maintenance tips for your Jeep Grand Cherokee’s remote start system.
Regular Battery Checks
Ensure you monitor the health of both the key fob and vehicle batteries. Replacing weak batteries in a timely manner can prevent issues down the line.
Keep Your Key Fob in Good Condition
Avoid exposing your key fob to extreme conditions (like high moisture or excessive heat) to prolong its lifespan. Also, regularly clean the key fob to prevent dirt from interfering with its buttons.
Scheduled Vehicle Maintenance
Integrate vehicle maintenance routines that include checks for electronic systems, ensuring that everything functions as intended. Consult your owner’s manual for recommended service intervals.
Conclusion
A non-functional remote start feature can be frustrating, but understanding the potential issues is the key to finding a solution. From checking the key fob battery to ensuring proper vehicle settings, many problems can be easily addressed with a little vigilance.
If troubleshooting proves fruitless, don’t hesitate to seek professional assistance for a thorough diagnostic check-up. By staying vigilant and maintaining your vehicle, you can ensure your 2018 Jeep Grand Cherokee remains a reliable companion, ready to start on command whenever you need it!
With these steps and insights, you can get back to enjoying the convenience and comfort that comes with your Jeep’s remote start feature in no time!
What are common reasons why the remote start on my 2018 Jeep Grand Cherokee is not working?
The remote start feature on your 2018 Jeep Grand Cherokee might not function due to a variety of reasons. One of the most common issues is that the vehicle’s battery might be low or dead. Remote start systems require a certain level of battery charge to operate, and if the battery is weak, the remote start may not engage.
Another potential cause could be an unobstructed line of sight between your key fob and the vehicle. Sometimes, if you’re too far away or there are obstacles in the way, the signal may not transmit. Additionally, if the key fob is damaged or the battery inside it is also low, it might not send the needed signal to start your car remotely.
Could there be a problem with my key fob?
Yes, issues with the key fob can certainly lead to problems with the remote start feature. If the key fob’s battery is weak or dying, it might struggle to send the proper signal to the vehicle. Replacing the battery in your key fob is a straightforward process and can often resolve these types of issues, allowing the remote start function to work smoothly again.
Moreover, physical damage to the key fob, such as cracks or water exposure, can disrupt its functionality. If you suspect that your key fob is damaged, it may be wise to test it with a spare fob if you have one available. This can help you determine if the issue lies with the original fob or with the vehicle itself.
Are there any settings I need to check in my vehicle?
Yes, it is important to check the settings of your 2018 Jeep Grand Cherokee to ensure that the remote start feature is enabled. Vehicles typically have an option to enable or disable the remote start feature through the vehicle’s settings menu or the Uconnect system. If this feature has been inadvertently disabled, your remote start won’t function correctly.
Additionally, some vehicles require specific conditions to be met for remote start to work, such as ensuring that the vehicle is in “park” mode and all doors are closed. Checking your owner’s manual for requirements and settings can provide clarity on how to enable or troubleshoot the remote start feature effectively.
What should I do if the vehicle won’t start remotely after several attempts?
If your Jeep Grand Cherokee won’t start remotely after multiple attempts, it’s wise to troubleshoot further. Begin by reviewing the vehicle’s battery condition, ensuring it has sufficient charge to power the remote start system. If the battery is fine, consider looking into whether there are any diagnostic trouble codes in the vehicle’s system that might indicate a problem.
If these steps do not resolve the issue, resetting the remote start feature may help. You can often reset the remote start system by disconnecting the vehicle’s battery for a few minutes and then reconnecting it. However, if problems persist, consulting with a professional mechanic or a Jeep dealership could be necessary to diagnose and repair any underlying issues with the remote start system.
Could environmental factors be affecting the remote start?
Yes, environmental factors can play a significant role in the functionality of the remote start feature. For instance, extreme weather conditions, such as heavy rain, snow, or strong winds, might interfere with the key fob’s ability to send signals effectively. Additionally, if you are located in an area with a lot of radio interference, it may disrupt the communication between your key fob and the vehicle.
Moreover, physical obstacles can impede the signal transmission. If you are trying to start your vehicle in a crowded parking lot or near tall buildings, these surroundings might block the remote start signal. In such cases, moving to a more open area could help improve your chances of successfully utilizing the remote start feature.
Is there a fuse related to the remote start system that could be blown?
Yes, your Jeep Grand Cherokee’s remote start system is connected to various electrical systems, and there is indeed a possibility that a fuse related to this feature might have blown. If a specific fuse has failed, it can disrupt the entire remote start functionality. You can find the fuse box under the dashboard or in the engine compartment, and checking the owner’s manual will guide you to the right fuse related to the remote start system.
If you do find a blown fuse, replacing it with a fuse of the same amperage could potentially resolve the issue. However, if the new fuse blows again, this may indicate an underlying electrical problem that should be checked by a qualified technician. Addressing any electrical issues promptly can help avoid further complications in the future.
What are the next steps if I can’t resolve the issue myself?
If you have gone through the troubleshooting steps and still cannot resolve the remote start issue, the next step is to seek assistance from a professional. Taking your 2018 Jeep Grand Cherokee to an authorized dealership can ensure that you receive expert advice and service tailored to your vehicle model. Dealership technicians have access to specialized diagnostics that can pinpoint the exact problem with the remote start system.
Furthermore, independent automotive technicians who specialize in Jeep vehicles can also assist with diagnosing and fixing the issue. Providing them with details about the troubleshooting steps you have already taken can help streamline the process, allowing them to focus on potential problems that have not yet been addressed. Getting professional help will ensure that your remote start feature is restored effectively and safely.