Vehicle report

2020 WONDER W24RTB

Service bulletins

4 bulletins

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.

CA#10000

Service Bulletin/Repair Instructions

The Victron Battery Protect BP100 is allowing the AGM batteries to be drawn down lower than 11.25V than the intended 12V. A reset on the component from A3 to A8 is required. An SOP (Standard Operating Procedure) is being provided as instruction on how to perform the reset.

CA#9848

Service Bulletin/Repair Instructions

On certain 2020 & 2021 Wonder models the Firefly Multiplex panel requires a software update to version 3.1.2. The Multiplex panel will try to prime the generator if the furnace is "ON" when the battery disconnect is turned "OFF". SOP2839 is included for instruction on how to perform the Campaign.

CA#9694

Service Bulletin/Repair Instructions

The hitch & towing information for the 2019 & 2020 Wonder W24RTB was omitted from the owner manual. A decal with the correct information will be sent out to dealers & retail owners. The decal should be placed in the owner manual under the heading "Towing". A SOP2885 will be sent out to indicate where the decal should be placed.

CA#9703

Service Bulletin/Repair Instructions

The Firefly auto generator start feature periodically turns off shortly after the heating ventilation air conditioner is triggered stalling the generator. A software update to the G12 module to the version 3.10 provided by Firefly has to be performed. A USB stick with the software update and a SOP (Standard Operating Procedure) will be sent out to dealers and retail owners of motorhomes that are affected.

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.

2020 Wonder W24rtb Service Bulletins: 4 bulletins | CarFathom