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June 14, 2021 Service bulletin

Safety Recall – Interim Notification

Peterbilt technical service bulletin 21-PBF for 2019-2022 Peterbilt 579, 2019-2022 Peterbilt 389 and 2019-2022 Peterbilt 567.

Bulletin number
21-PBF
Component
Exterior lighting
Summary
Safety Recall – Interim Notification - The Daytime Running Lamps (DRLs) may turn off while the vehicle is in motion and the headlamps, fog lamps or turn signals are not on. This is non-compliant with Canadian Regulation CMVSS 108, which states that the DRLs must be on while the vehicle is in motion without certain other lamps being activated. This bulletin will be updated when a repair is available.

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