OK, so I finally go around to figuring out why my tail light warning is on all the time and it turns out that my "High-mount Stop Light" was burnt, so I replaced it (bulb# 921 in case anyone is wondering). Now the strange thing is that every time I use the brakes, the tail light warning comes on again, but when I'm not pressing on it, it goes away.

Any suggestions guys?

Thanks so much.

 

Try jiggling the high mounted bulb around, remove and replace it.

Check the combination brake/tail light bulbs. It is possible one of the filaments in the two filament bulb has failed and has fallen onto the other filament.

Check your other bulbs also.

 

Thanks for the suggestions. I found out that it was because I wired my aftermarket brake light socket incorrectly. I matched the coloured wires correctly but the aftermarket socket had the wires weird.