Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
1ZP-K8A2M-11
Service Bulletin/Repair Instructions
This Technical Service Bulletin provides an inspection guide and corrective actions for travel trailers produced during 2014 and 2015 that may experience degraded braking due to a sub-optimal ground through the ball connection when an optional anti sway hitch is installed. During the affected model years some Oliver models relied upon providing a ground to the electric braking system through the connection between the tow vehicle hitch and trailer frame. This usually provides sufficient grounding capacity for the brakes to operate normally, however, a better method of grounding the trailer would be to provide a grounding bond through the 7-pin ground wire to the trailer frame.
1ZPK8A2M11
Service Bulletin/Repair Instructions
This Technical Service Bulletin provides an inspection guide and corrective actions for travel trailers produced during 2014 and 2015 that may experience degraded braking due to a sub-optimal ground through the ball connection when an optional anti sway hitch is installed. During the affected model years some Oliver models relied upon providing a ground to the electric braking system through the connection between the tow vehicle hitch and trailer frame. This usually provides sufficient grounding capacity for the brakes to operate normally, however, a better method of grounding the trailer would be to provide a grounding bond through the 7-pin ground wire to the trailer frame.
1Z9-V8T4B-10
Service Bulletin/Repair Instructions
This Technical Service Bulletin provides an inspection guide and corrective actions for travel trailers sold with an optional Xantrex inverter that potentially have a missing inverter chassis ground wire or were installed using improper hardware on the inverter chassis ground.