Mack Gu: Brakes

Affects Mack Gu · 2009 — about 15 vehicles.

The hazard

Certain vehicles may have been assembled with an incorrectly manufactured Bendix MV-3 dash control valve. If the double check valve becomes lodged, in the event of a primary reservoir failure, air pressure can leak past the lodged valve, thereby depleting the secondary reservoir, causing a reduced ability for modulating the emergency brakes. Extended stopping distances may result in a vehicle crash, causing property damage, and/or personal injury or death. Correction: Dealers will inspect and, if necessary, replace the dash control valve.

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