STEERING:HYDRAULIC POWER ASSIST SYSTEM
THESE VEHICLES HAVE DUAL AXLE STEERING WITH A HYDRAULIC VALVE WHICH DIVERTS POWER ASSIST FROM ONE SIDE TO THE OTHER AS NECESSARY. THE HYDRAULIC VALVE CAN BE CONTAMINATED CAUSING THE VALVE TO MALFUNCTION.
Remedy: DEALERS WILL INSPECT THE STEERING CONTROL VALVE AND PARKING BRAKE INTERLOCK FOR PROPER OPERATION. CONTAMINATED OR MALFUNCTIONING UNITS WILL BE REPLACED.
422 vehicles affected