Mack MR: Powertrain

Affects Mack MR · 1989–1991 — about 25 vehicles.

The hazard

NOTE: VEHICLES EQUIPPED WITH ALLISON TRANSMISSIONS AND STONE BENNETT SHIFT SELECTORS. THESE VEHICLES DO NOT COMPLY WITH C.M.V.S.S. 102 - TRANSMISSION SHIFT CONTROL SEQUENCE. - GEAR POSITIONS IN RELATIONSHIP TO ONE ANOTHER ARE NOT DISPLAYED TO THE DRIVER. (EXAMPLE: R-N-D-3-2-1 ) CORRECTION: OWNERS WILL BE PROVIDED WITH DECALS AND INSTALLATION INSTRUCTIONS.

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