Jeep grand Cherokee limited edition 2015
Joined 9 mo ago
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10 Posts
Discussion Starter · #1 · 8 mo ago
Hi! My key fob sometimes work and other times doesn't. I have replaced the batteries in the fob with this instruction 🔋 2019 Jeep Grand Cherokee Key Fob Battery Remote Replacement and Type After that I check also my second fob and it didn't work
at all. Does the second key need reprogramming? Is it possible to do that by myself from OBD-II scanner? It is generally the same key fobs .
PS The car 2019 Grand Cherokee
Joined Jun 17, 2012
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68 Posts
Use a browser search for your year vehicle key fob programming.
Some need the dealer to reflash the computer to recognize the key fob.
Others recognize new key fobs by following steps unusually involving a combination of button presses and switching the ignition on and off.
I have a 2014 Jeep Grand Cherokee and the key fobs don't always work.
They won't unlock the Jeep or start it. When I open the door with the key
the alarm always goes off and takes a few minutes for it to stop. I have
changed the batteries and have had it in the shop two times and still does
not work all the time. when I leave the car and the key fob is still in vehicle it
states that the key has left the vehicle.. Very aggravated to say the lease.
Your Answer:
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This is the solution for you if you’re looking for an easy way to get into your Jeep without fumbling around with your keys or finding a remote. With a simple push of a button, you can unlock your Jeep with a key fob. The problem is that the key fob with your vehicle has stopped working.
So what can you do? This guide will walk you through the steps necessary to replace your key fob and fix the problem.
- Why is the Jeep key fob not detected? Top 8 Reasons
- Dead key fob battery
- Loose connection
- Use of a wrong fob key
- Programming issue
- Jeep/Car battery worn out
- Faulty door lock
- Radio interference
- Broken wire in a key fob
- How to fix your Jeep key fob that is not detected?
- (1) Improve Conductivity of the Contacts
- (2) Replace the Battery
- (3) Replace the Fuse
- (4) Reprogram Your Key Fob
- (5) Unblock Signal
- (6) Try changing out your Jeep key fob receiver
- How to start a jeep Cherokee when the key fob is not detected?
- How do I program my Jeep key fob?
- How To Program a Jeep Key for Jeep Wrangler 2013
- Conclusion
Why is the Jeep key fob not detected? Top 8 Reasons
Dead key fob battery
Many Jeep owners or drivers face this issue because the key fob battery is drained. This can be due to a few reasons: leaving the key fob in a hot car or leaving the key fob inside your Jeep when it’s cold outside.
When the key fob’s battery is dead or weak, the Jeep will not be able to detect it and will not start.
Loose connection
Due to the loose connection of the key fob to the Jeep, it is possible for the Jeep not to detect it. This could be due to a dirty or corroded connection on the part of the key fob.
Use of a wrong fob key
Sometimes your Jeep key fob cannot detect due to using the wrong fob key. Because the Jeep key fob communicates with the Jeep through an RFID chip, if you use a key fob that is not made for the Jeep/car, the car won’t be able to read the chip and recognize the fob.
Programming issue
The programming issue is the most common reason why the jeep key fob does not detect. If the programming module is damaged or if there is a malfunction in the keyless entry system, then the device will not be able to communicate with your Jeep.
Jeep/Car battery worn out
The key fob is a small device used to start the Jeep. If the car battery is worn out, the key fob will not be able to detect it. A few things can cause the car battery to wear out. One of them is if you don’t use your Jeep regularly. Your Jeep battery won’t last as long if you just drive it around town.
Another thing that can cause the Jeep battery to wear out has many electronics in your Jeep. If you have a lot of USB ports or chargers in your Jeep, those ports can drain your battery over time. In this case, you will need to get a new car battery.
Faulty door lock
The most common reason that the only cause not to detect Jeep key fob is the faulty door lock. If the door lock is not working properly, the Jeep key fob will not be able to detect it. A few things can cause the door lock not to work properly.
Some of them are if there is a broken wire in the system, if there is water damage to the system, or if there is a malfunction with the keyless entry system.
If you are experiencing this problem and you don’t know what to do, you will need to have your car mechanic look at it. They will be able to diagnose the issue and fix it.
Radio interference
If there is radio interference in the area, the Jeep key fob will not be able to detect it. This can happen if there is much metal in the area, much electrical equipment, or any radio towers nearby.
Broken wire in a key fob
Sometimes your Jeep key fob may not work because there’s a broken wire in the key fob. If this is the case, you’ll need to have a mechanic replace the whole key fob.
How to fix your Jeep key fob that is not detected?
The Jeep key fob not detected can mean a few different things. The most common is that the battery in your Jeep key fob has died so that it won’t work. If you’ve tried charging the battery, but the fob still isn’t working, there’s a good chance that your Jeep key fob receiver has been damaged and needs to be replaced.
If you’ve never had trouble with your Jeep key fob before and it just stopped working suddenly, there’s a good chance that someone stole your Jeep and replaced the battery with their own. In any case, if you’re having trouble with your Jeep key fob not detecting, here are 6 tips to help fix the problem:
(1) Improve Conductivity of the Contacts
You can do a few things to troubleshoot and fix the problem. One common issue is that the contacts in the key fob may be dirty or have lost their conductivity.
Here are five tips to improve the conductivity of the contacts:
- Clean the contacts with a microfiber cloth and rubbing alcohol.
- Replace any broken or corroded contacts.
- Check for any electrical damage to the key fob’s circuitry, which could cause poor conductivity.
- Check for any debris trapped between the contacts and case of the key fob. Remove any obstructions with small needle-nose pliers, if necessary.
- Try repairing the key fob to your vehicle. If the key fob still doesn’t work, it may be necessary to replace the receiver.
(2) Replace the Battery
To solve the Jeep key fob not detected issue, you can replace the battery. If your key fob isn’t detecting even after following the tips above, it may be that the battery is just not working anymore.
Here are five steps to replace the battery in a Jeep:
- Disconnect the key fob from the vehicle’s electrical system.
- Remove the four screws that hold down the cover of the key fob receiver.
- Remove the cover of the receiver and remove the battery.
- Replace with new battery and reinstall cover and screws.
- Connect the electrical system and test the key fob function.
(3) Replace the Fuse
If the key fob still doesn’t work, replacing the entire fuse box may be necessary. You can also try to reset the key fob by pressing and holding down the “Lock” button for 10 seconds.
(4) Reprogram Your Key Fob
You can try reprogramming the key fob if it seems to be incompatible with the Jeep’s security system. Try to run your key fob with the proper program. If it fails, you can take your Jeep to a mechanic for repairs.
(5) Unblock Signal
Ensure nothing is blocking the signal from reaching your Jeep key fob. If there are huge metal objects in the area, like a car, they can block the signal from reaching your Jeep key fob. To remove metal objects that may be blocking the signal and try again.
(6) Try changing out your Jeep key fob receiver
If you think that there’s something wrong with the receiver of your Jeep key fob, like it’s been damaged, you can try replacing it yourself. Just be sure to follow instructions carefully so don’t damage your Jeep.
Read: 15 Jeep Wrangler Key Fob Tricks You Will Love
How to start a jeep Cherokee when the key fob is not detected?
If your Jeep Cherokee key fob doesn’t seem to be working, there are a few things you can do to try and fix the problem. First, check to see if the battery is fully charged. If it’s not, you’ll need to charge your Jeep key fob before trying to start the vehicle.
Next, ensure that you’re properly inserting the key into the ignition. If you’re having trouble starting your Jeep Cherokee with the key fob, try replacing it with a new one. If those steps don’t work, you may have to take your Jeep Cherokee to a mechanic for repair or replacement.
How do I program my Jeep key fob?
Jeep vehicles come with keyless entry remotes that can be programmed to lock and unlock the doors. The programming process is simple, but it must be done correctly to work properly.
Here are the steps to programming a Jeep key fob:
- Sit in the driver’s seat and close all doors.
- Insert the key into the ignition and turn it to the “On” position, but do not start the engine.
- Press and release the “Lock” button on the key fob.
- Within five seconds, press and hold down the “Unlock” button for at least two seconds.
- Release both buttons simultaneously, then turn off the ignition and remove the key from it.
- The doors should now be locked and unlocked with the key fob. If they are not, repeat the steps above.
How To Program a Jeep Key for Jeep Wrangler 2013
Conclusion
A Jeep key fob not detected is a common problem that can be fixed by following these six tips. By troubleshooting the issue and taking the necessary steps, you should be able to get your key fob working properly again in no time.
So try to apply these steps the next time you face this problem.
Hi, I am Ashley Kiser a professional automotive blogger. I have worked in the automotive industry for over 5 years. I am passionate about cars and love sharing my knowledge with others. I hope this blog will help you make the best decisions when it comes to your car.