TPMS EL50448 Auto Car Tire Presure Monitor System For GM TPMS Activation Tool
EL50448 FAQ. El-50448 could program TPMS on for G-M 2010-2013 year. Also works on 2014 GM models. Make the J-46079 or Diagnostic Tool EL-50448 antenna up against the valve core position & close to the rim of the tire sidewall.