A Once Off ECU Error, Possible?

[AUSVX]

Hello everyone!

I started the car the other day and noticed the ABS light stay ON once the car had started but I started driving anyway but got a bit worried, pulled over, took the keys out of the ignition and started the car up again and everything was as if nothing ever happened!!!

I haven't checked codes but should I be worried, and what in the car may have potentially failed to make the light stay on after start up... (just out of curiousity) ??

Thanks, Jordan.