ITEM NAME:For EL-50448 TPMS Reset Relearn tool Auto Tire Pressure For GM Vehicles W4S0 Features: Compact design makes it lightweight and portable, easy to carry. Checking the pressure.After replacing a tire or wheel speed sensor. --The turn signal is lighted for 3 seconds and the horn beep sound twice to enter the learning mode. --Make the J-46079 or Diagnostic Tool EL-50448 antenna up against the valve core position & close to the rim of the tire sidewall.
