1GDJ7F1386F413880

CERTAIN MEDIUM DUTY TRUCKS EQUIPPED SR-7 BENDIX BRAKE VALVES, THE CHECK VALVE INSIDE THE VALVE CAVITY MAY NOT PROPERLY SET, CAUSING INTERNAL AIR LEAKAGE. IF THE CHECK VALVE DOES NOT PROPERLY SEAT, THE RESULTING LEAKAGE CAN CAUSE A DELAY IN THE APPLICATION OF THE SPRING BRAKES TO PARK THE VEHICLE AFTER OPERATOR PULLS THE DASH VALVE BUTTON.

THE DELAYED PARKING BRAKE APPLICATION CAN OCCUR WITHOUT WARNING, LEADING TO UNINTENDED VEHICLE ROLLAWAY INCREASING THE RISK OF A CRASH.

DEALERS WILL INSPECT THE VALVES AND REPLACE IT FREE OF CHARGE. THE RECALL BEGAN ON JULY 31, 2006. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463, OR ISUZU AT 1-800-255-6727.

CERTAIN TRUCKS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS." AN INTERNAL CONTROL AND CHECK VALVE WITHIN THE AIR BRAKE APPLICATION VALVE ASSEMBLY WAS CONFIGURED IMPROPERLY, PREVENTING AIR FROM FLOWING THROUGH THE BRAKE SYSTEM AS DESIGNED. IN THE EVENT OF AN EMERGENCY STOP, THE VEHICLE'S STOPPING DISTANCE WOULD BE INCREASED.

IF STOPPING DISTANCE WAS LIMITED, A VEHICLE CRASH COULD RESULT.

DEALERS WILL REPLACE THE AIR BRAKE APPLICATION VALVE ASSEMBLY ON C-SERIES OR REROUTE THE AIR BRAKE LINES ON T-SERIES FREE OF CHARGE. THE RECALL BEGAN ON SEPTEMBER 20, 2006. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463 AND ISUZU AT 1-800-255-6727.