HOW DO YOU REST A WINDOW ON A 1999 LX470

i HAD TO REPLACE A REAR LEFT DOOR WINDOW. tHE WINDOW DOES NOT ROLLUP COMPLETELY. tHE GLASS INSTALLATION COMPANT STATED I HAD TO TAKE THE VEHICLE TO DEALEER AND HAVE THE WINDOW SENSOR RESET. DOES ANYB ODY HAVE ANY SUGGESTIONS OR KNOW HOW TO RESET THE WINDOW? snipped-for-privacy@YAHOO.COM