while I was driving the other day my key light turned on while I was driving an it shut off, gave me problems ever since.

can anyone give me insight on what might it be?

 

Quite possibly starting to have an issue with your key. If you're somewhat tech savvy, take the key apart and take a look at the immobilizer and check for any defects or burnt/broken PCM parts. Hopefully it was just a fluke!

 

Do you have a spare? Keep the space on you and continue using the potential problem key. If you get a key light again swap keys and see if it goes away. If that ends up being the problem get a new key to replace the bad one.

 

Had a similar issue a few years ago, swapping keys didn't work. Replaced the immobilizer and resolved the issue. It was a little difficult to remove and replace...but in the end it was plug and play, no reprogramming necessary.

 

As with anything electronic, "re-seat" the plug a couple times first (maybe add dielectric grease or deoxit to the pins), before resorting to buying and replacing entire parts/components.
(this is commonly done in analog music studio equipment [my other long-time hobby])

Could be as simple as a little corrosion on connectors/plugs. You'd be surprised how common this is and how many things this fixes (90% of the time too).