26-05
Service Bulletin/Repair Instructions
It has been discovered the DC/DC Charger may have been wired backwards. If the charger wires are reversed, it is preventing the chassis alternator from charging the house batteries.
Vehicle report
2026 THOR MOTOR COACH PALLADIUM
Service bulletins
4 bulletinsTechnical 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.
26-06
Service Bulletin/Repair Instructions
It has been discovered the DC/DC Charger may not have the correct (LiFePO4) type of house batteries selected. Constant exposure to improper charging will result in incomplete charging and/or premature battery aging.
26-01
Service Bulletin/Repair Instructions
Thor Motor Coach (TMC) has been made aware of an emergency WARNING label adhered in error to the interior slider door window on the Ford and Mercedes chassis. The label instructions ONLY pertain to the RAM ProMaster chassis product and are ineffective on the Ford and Mercedes brands.
TSB 26-01
Service Bulletin/Repair Instructions
Thor Motor Coach (TMC) has been made aware of an emergency WARNING label adhered in error to the interior slider door window on the Ford and Mercedes chassis. The label instructions ONLY pertain to the RAM ProMaster chassis product and are ineffective on the Ford and Mercedes brands. TMC is requesting the removal of the WARNING label from the sliding door window to prevent confusion in emergency situations.
Reading this report
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.