E-locker

I am a brand new owner of 2003 tacoma TRD Never plan to take it off road but it came with off road package including rear electronic differential locker can someone tell me what that iis and how to use.
Thanks

 

The locker "locks" the differential so that both rear tires turn the same amount. This aids in traction when one rear tire has less traction or is in the air.

To engage the locker, make sure you're below 5mph, press the locker button, and make small s-turns until the light on the dash stops blinking. That's how you'll know it's engaged.

Never make tight turns on terrain that has no give (i.e. pavement) or you run the risk of putting too much torque on your differential and possibly destroying the gears.