Kenworth · Canada · Mod
Kenworth T450, T600A +4 more: Visual System
Affects Kenworth T450, T600A, W900B, T800, C500, T400 · 1989–1991 — about 4K vehicles.
The hazard
THE SPRAGUE WIPER ASSEMBLY PIVOT CAN SEIZE DUE TO GALVANIC CORROSION BETWEEN THE ZINC-PLATED STEEL SHAFT AND THE BRONZE BUSHING CAUSING THE WIPER ARM/BLADE ASSEMBLY TO STOP WIPING THE WINDSHIELD. THIS COULD CAUSE REDUCED DRIVER VISIBILITY DURING INCLEMENT WEATHER AND RESULT IN A VEHICLE CRASH. CORRECTION: SPRAGUE WIPER ASSEMBLY PIVOT WILL BE REPLACED WITH AN ASSEMBLY NOT SUSCEPTIBLE TO GALVANIC CORROSION.
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