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Service bulletin KC-2117

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10195000
Published by NHTSA2021-06-04
Manufacturer's numberKC-2117
Manufacturer's date2021-05-25
NHTSA componentBACK OVER PREVENTION:DISPLAY FUNCTION

NHTSA's summary

Mack Chassis - Radio Loses Presets And Time Setting - Terrapro Models (MRU, TE)

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Driver assistance, Backup camera

Vehicles listed
MACK MACK

Listing a model year does not mean every vehicle of it is concerned: the document says which.