Some 2021 F-Super Duty vehicles equipped with a 6.7L engine and built on 01-Nov-2020 and through...

Bulletin number

SSM 49845

Component

Electrical system

Summary

Some 2021 F-Super Duty vehicles equipped with a 6.7L engine and built on 01-Nov-2020 and through 30-Dec-2020 may exhibit a no crank/no start condition with an open fuse F48 (position 23) in the battery junction box (BJB). This may be due an intermittent short circuit in a transmission main control solenoid. To correct the condition, replace the open fuse and replace the main control valve body. Refer to Workshop Manual (WSM), Section 307-01. For claiming, use causal part 7A100 and applicable labor operations in Section 07 of the Service Labor Time Standards (SLTS) Manual.

Owners of these vehicles have filed 36 complaints in the electrical category.