United States 91V197000
Volvo Trucks North America
The problem
THE PARKING BRAKE MAY NOT EXERT SUFFICIENT FORCE TO ENABLE THE VEHICLE TO CONFORM TO THE GRADE HOLDING REQUIREMENTS OF FMVSS 121.
Risk
VEHICLES WITH INSUFFICIENT PARKING BRAKE FORCE CAN ROLLWITHOUT PRIOR WARNING WHEN PARKED ON A GRADE, THIS COULD RESULT IN A VEHICLEACCIDENT.
What owners should do
REPLACE THE PARKING BRAKE CHAMBERS.
Units 83