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August 13, 2026 Service bulletin

When DAVIE version 26.21.2 is used to update the VECU3 to software version 3.4.46.0, the VECU3 5071...

Kenworth technical service bulletin 46-029 for 2024-2026 Kenworth T680, 2024-2026 Peterbilt 579 and 2024-2026 Kenworth T880 and others.

Bulletin number
46-029
Component
Electrical system
Summary
When DAVIE version 26.21.2 is used to update the VECU3 to software version 3.4.46.0, the VECU3 5071 component group may display as --- after programming.

Owners of these vehicles have filed 1 complaints in the electrical category.

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