ABS, ((!)), Traction Lights on after snow chains

2011 Prius IV
Approx 75,000 miles
Great condition, never any issues...great car!

I drove down from Big Bear to Los Angeles on a snowy Sunday, I put snow chains on for a good portion of the drive down the mountain. The drive with the chains was fine and relatively slow. Although at one point it sounded as though there was a loose wire dangling inside of the left wheel well. The sound went away after about a minute, but the ABS, ((!)), Traction lights came on and did not turn off (they are still on). When it was safe to pull over I did and I removed the chains and continued the drive home without a problem. Note - the chains were intact and did not appear to have come loose during the drive. Like I said, I continued the drive back home to Los Angeles without a problem and the car continues to drive fine to this day.

The following day I looked behind the left wheel and I noticed a severed wire, which I suspect is the sensor wire/s for ABS, ((!)), Traction Lights.

If this is indeed the case, can I purchase the wire harness for this and replace it myself? Or is this something that requires a visit to the dealer? To replace, reset, calibrate? Or can a DIYer take care of this and save some money.

Any and all input is appreciated.