2017 Freightliner Cascadia, 2017 Western Star 5700 Recall: During the hardening process, the axle assembly output shaft may have been…
NHTSA campaign 17V315000 · Power Train · filed May 11, 2017 · verified Jul 30, 2026
The defect
Daimler Trucks North America LLC (DTNA) is recalling certain 2017 Freightliner Cascadia and Western Star 5700 trucks built with NFD tandem rear axles. During the hardening process, the axle assembly output shaft may have been made brittle, possibly resulting in the output shaft fracturing while the vehicle is in use.
The risk
If output shaft fractures while descending a grade, the compression braking will be ineffective. Additionally, large debris may land in the road. Both scenarios increase the risk of a crash.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
DTNA will notify the owners, and Detroit Axle dealers will replace the output shaft, free of charge. The recall began on July 7, 2017. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-738.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Affected vehicles
| Make | Model | Model years |
|---|---|---|
| Freightliner | Cascadia | 2017 |
| Western Star | 5700 | 2017 |
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Source: NHTSA recall database, campaign 17V315000 (manufacturer number FL-738). Data last verified Jul 30, 2026.