There was one technical service bulletin issued for the 2013 Collins DH500.
| Bulletin Date: | Apr. 17, 2014 |
| Component: | Lighting (pws). |
| Bulletin Summary: | Lighted sign led strips : lighted led strip may experience corrosion at the wire connection which may cause failure. |
| Vehicles covered in this TSB: |
2013 Collins DH400,
2013 Collins DH416,
2013 Collins DH500,
2013 Collins DH516,
2012 Collins Dw516wr.
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