SERVICE BULLETIN - CERTAIN DRIVE CYCLE CONDITIONS MAY CREATE HIGHER-THAN-NORMAL STRESS ON THE INPUT SHAFT PULLEY WHICH, IF REPEATED ENOUGH TIMES, COULD CAUSE THE PULLEY TO BREAK. IF THE SHAFT PULLEY BREAKS, THE VEHICLE IS NOT ABLE TO MOVE WHILE IN GEAR OR THE WHEELS MAY LOCK, INCREASING THE RISK OF A CRASH.