There was one technical service bulletin issued for the 1999 Freightliner XC.
| Bulletin Date: | Dec. 1, 1999 |
| Component: | Rear suspension springs air suspension system. |
| Bulletin Summary: | Vehicles equipped with wabco air compressor manufactured between March 1, 1999 and July 2, 1999 have experience air exhausting to the atmosphere instead of going into the air tanks when the relief valve opens. The modification consists of |
| Vehicles covered in this TSB: |
1999 Freightliner XC.
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