2011 jeep grand cherokee key not detected

Question

Introduction

I developed issues with the FOB not functioning right, needing to be close to the vehicle and in certain areas for it to work. Changing the battery was straight forward and restored its function immediately.

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Introduction
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Why is my key fob not detected?

Here is the FOB for my Jeep. It decided to finally quit. The functionality became less over the last couple of weeks and required frequent attempts to unlock the vehicle etc.
Remove the key by moving
locking hatch to the left side first.
The two halves where the FOB needs to be split are clearly visible

Using a plastic opening tool (or finger nail, guitar pick etc.) start at the front of the FOB to separate it
Moving the tool along the split line with slight sideways pressure
will separate the FOB easily.

Here is the cleanly opened FOB
Bottom half of the FOB contains the CR2032 coin battery
Remove the battery by pulling it out of the holder pushing it gently against the spring contacts.
Replace the battery following the polarity with the positive side to the body of the FOB

Insert wisdom here.

Conclusion

To reassemble your device, follow these instructions in reverse order.

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« back to accessories - exterior
Complaints 3K
Crash Tests 3
Grand Cherokee Recalls 6
Defect Investigations 5
TSBs 222
Lemon Law

CarComplaints.com Notes: The fourth generation Grand Cherokee took the relatively trouble-free run of the 3rd-generation and flipped the script.

From 2010 to 2011, complaints about the vehicle not starting increased 10-fold. In fact, the 2011 model year is riddled with engine problems and a defective TIPM might be to blame. The TIPM (Totally Integrated Power Module) distributes power to all the eletrical components in the vehicle, so when it starts acting funny so do numerous other components in the car. Orders for new TIPMs were so abundant that parts became scarce, prompting a class-action lawsuit claiming Chrysler ignored this obvious defect.

By 2012 complaints dropped back down by about 80%. Needless to say, if you see a used 2011 Jeep Grand Cherokee on a lot just keep walking.

Typical Repair Cost:$800Average Mileage:44,350 milesTotal Complaints:6 complaints

Most Common Solutions:

not sure (4 reports)
replaced entire keyless system, including fobs (1 reports)
time to get a new battery (1 reports)

accessories - exterior problem

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Search for Car Problems

Why is my key fob not detected?

A bad battery in the key fob is most commonly the reason for a failure to send signals to the keyless entry system. If it is available, use the spare key fob to open the vehicle and start the ignition. If the spare fob is not available, use the provided key embedded in the fob to unlock the door.

jeep grand cherokee key detected