GMC · Canada · Crit
GMC C7, B6 +1 more: Brakes
Affects GMC C7, B6, C6 · 1985–1986 — about 1K vehicles.
The hazard
VEHICLES EQUIPPED WITH A TRANSMISSION MOUNTED INTERNAL EXPANDING TYPE PARKING BRAKE MAY HAVE A CRACKED PARKING BRAKE ACTUATING LEVER CAM. UNDER NORMAL OPERATING CONDITIONS, IN TIME, THE CRACK CAN GRADUALLY WIDEN, REDUCING THE FORCE OF THE PARKING BRAKE. THE WIDENING OF THE CRACK CAN ALSO OCCUR WHEN THE PARKING BRAKE IS APPLIED. IF THIS SHOULD HAPPEN TO AN UNATTENDED VEHICLE, IT COULD ROLL AWAY UNCONTROLLED.
What to do
Contact your dealer; the remedy details were not included in the filing.
Critical — crash/injury risk now
High — injury risk; see remedy
Moderate — fix at next service
Low — minor / informational