A broken key fob is not always a signal that you will need to replace your whole device. If the buttons still work and the car starts normally, then the electronic chip is probably just fine.
In any case, a broken casing ought to be dismissed. It gives protection to the electronics against a lot of factors like dust, moisture, and physical impact. Exposing the chip can turn a simple casing issue to a costly key error.
The Casing Covers What Exactly By
The plastic shell serves more of a purpose than just prettying up the key. This helps keep the internal components locked properly into place.
Depending on the remote key fob, an internal circuit board may also include a battery, buttons, and other components of a transponder. The casing keeps these pieces protected and aligned.
Dust and moisture get in more easily when the casing cracks. A very badly damaged case will also allow movement of internal components.
Can You Only Change the Casing?
In some cases, yes. The screen may feature an updated glass and a shell that simply houses the existing electronic bits, if they’re functioning.
This can be an ideal option when:
- The buttons still operate normally
- The vehicle starts without problems
- The circuit board is undamaged
- The transponder chip is intact
- Only the plastic mount is broken
You might have to transfer the shell from your old fob. Additionally, the shell must also match not only the original key’s outer casing but also interior components.
When to Get a Complete Replacement?
If the internal electronics are damaged, it may need to be completely replaced.
Watch for signs such as:
- The remote fails to lock or unlock the vehicle
- This means your vehicle doesn’t recognise the key
- Buttons stop responding
- The circuit board shows corrosion
- The fob has gotten wet (it is a waterproof battery)
In this case, it may not be necessary to completely change the key if only the shell is cracked but everything else works.
Why Professional Inspection Helps?
Just looking at the key and not by itself because you start to realise that you no longer have a healthy chip and circuit board.
An auto locksmith can inspect it casing and interior hardware. They can also figure out if the key is repairable or if replacing it is a more viable option.
That can save money while the electronics still operate. The precise solution, however, is contingent upon vehicle and key system.
What About the Transponder Chip?
Many modern vehicle keys contain a transponder as an important part of their assembly. It talks to the immobiliser system in the vehicle.
Just because you find a cracked case it doesn’t mean that the transponder is also damaged. If the chip is loose, wet, or damaged physically, the vehicle may not to identify this key.
This is yet another reason to run and procure a new badly damaged case before this problem escalates.
Choosing the Right Locksmith
If you’re expecting assistance, opt for a professional auto locksmith who knows their way around automotive keys rather than calling just any key-cutting service.
An automotive locksmith in Kensington can examine the key, swap out its casing, and also test the remote. They can also advise if any programming is needed, if a new key is not being added.
Confirm what is included in the quoted price before approving the work.
Final Thoughts
Cracked key fob case does not necessarily mean you need to replace your key fob entirely. If the chip, circuit board and buttons are still operational then it might be OK to replace just the shell.
Leaving a broken casing in a state of exposure can lead dust, moisture and impact to sensitive electronics.
An automotive locksmith in Kensington can examine your key, tell you if only the casing needs to be repaired, or if it makes more sense to replace the key itself.
