Peterbilt 389, 567 +2 more: Brakes

Affects Peterbilt 389, 567, 579, 367 · 2021–2022 — about 38 vehicles.

The hazard

Issue: On certain trucks, the Hill Start Assist valve assembly could be damaged by contact with the rear axle. If this happens, there could be reduced braking or a loss of rear brakes. Safety Risk: Reduced braking or a loss of rear brakes can cause extended stopping distances and increase the risk of a crash. Corrective Actions: PACCAR will notify owners by mail and instruct you to take your truck to a dealer to inspect the clearance between the Hill Start Assist valve assembly and the rear axle. The dealer will rework the assembly if more clearance is needed.

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