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May 22, 2025 Service bulletin

T016: Warranty section updated to include 0.5 hours for test drive

Peterbilt technical service bulletin T016 / 26-040 for 2017-2023 Peterbilt 579, 2017-2023 Peterbilt 389 and 2017-2023 Peterbilt 567 and others.

Bulletin number
T016 / 26-040 (T016 / 26-040)
Component
Power train
Summary
T016: Warranty section updated to include 0.5 hours for test drive. Recommended Repair T016C has been updated from 6.4 hours to 6.9 hours. SRT codes updated in PRWS Claim Coding Table: B25-17A for 6.9 hours created to replace all other codes. 26-040: Warranty section updated to include 0.5 hours for test drive. Recommended Repair 26040C has been updated from 6.4 hours to 6.9 hours. SRT codes updated in PRWS Claim Coding Table: B25-17A for 6.9 hours created to replace all other codes.

Owners of these vehicles have filed 10 complaints in the transmission category.

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