VEHICLE DESCRIPTION: CERTAIN MOTOR HOMES FAIL TO COMPLY WITH REQUIREMENTS OF FMVSS NO. 121, "AIR BRAKE SYSTEMS." THE REAR BRAKE CHAMBERS INSTALLED ON THESE VEHICLES AS PART OF THE AIR BRAKE SYSTEM ARE INADEQUATE. THE INADEQUATE REAR BRAKE CHAMBERS COULD ADVERSELY AFFECT THE PERFORMANCE OF THE PARKING BRAKE.
THIS COULD RESULT IN THE UNANTICIPATED MOVEMENT OF AN UNATTENDED VEHICLE, AND POSSIBLE VEHICLE CRASH.
DEALERS WILL REPLACE THE REAR BRAKE CHAMBERS.