WenmarOpen by Wenmar Pro

Service bulletins for the 2021 NovaBUS LFS

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

102 on file from NHTSA, as of 2026-10-19.

By type

By component

Bulletins, newest first
FT5237R22022-08-31. Service bulletin. ENGINE AND ENGINE COOLING. Difficulty in removing the engine air filter housing cover affecting ease of serviceability of the filter.
FT5260R12022-08-31. Service bulletin. EQUIPMENT. Need to change the attachment of Lexan panels due to apparent cracks observed in production.
FT52912022-08-31. Service bulletin. ELECTRICAL SYSTEM. Some batteries temperature sensor may have an too high internal resistance and give an erroneous battery temparature reading causing F202 light battery to turn On, on dashboard
FT52752022-06-30. Service bulletin. ELECTRICAL SYSTEM. Parker Screen Software Update
LI5280E2022-06-30. Service bulletin. POWER TRAIN. Transmission
FT52722022-06-30. Service bulletin. SEATS; SEAT BELTS. Driver seat belt routing improvement
FT52732022-06-30. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Bitzer AC compressor electrical failure
FT5190R12022-06-04. Service bulletin. ENGINE AND ENGINE COOLING. Coolant leaks at supplier fittings
FT5271R12022-06-04. Service bulletin. EQUIPMENT. Loose drivers stanchion
FT52712022-06-04. Service bulletin. EQUIPMENT. Loose drivers stanchion
FT52642022-06-04. Service bulletin. LATCHES/LOCKS/LINKAGES; ELECTRICAL SYSTEM. Door code 105 is being logged on electric doors
FT5199R22022-05-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:SEALS/GASKETS. Gasket N55895 not installed in production (exhaust system)
FT52612022-05-05. Service bulletin. STRUCTURE:BODY:DOOR; LATCHES/LOCKS/LINKAGES; ELECTRICAL SYSTEM. Door code 105 is being logged on electric doors
FT52542022-05-05. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Turn Signal Foot Switch Failures
FT5245R12022-05-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:INFOTAINMENT:VIDEO (TOUCH)SCREEN/MONITOR/UNIT. ITS Moxy switch. The port 13 CAT6 cable of the NYCT Moxy switch is for a future option and should never be plugged in. Plugging this cable will cause malfunctions to the Infotainment screens and could cause damage
LI5164E2022-04-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. MCC Driver's Display Electrical Terminal Failure. Bracket installation to add a strain relief on the MCC display screen wires.
FT52402022-04-05. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; FUEL SYSTEM, DIESEL. Filler Neck Valve Issue
FT52372022-04-05. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. Difficulty in removing the engine air filter housing cover
FT5198R22022-04-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Water infiltration inside roof fuse box
FT52452022-04-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. ITS Moxy switch. The port 13 CAT6 cable of the NYCT Moxy switch is for a future option and should never be plugged in.Plugging this cable will cause malfunctions to the Infotainment screens and could cause damage.
BS5210ER12022-04-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Horn may fail due to the low internal high heat resistance.
FT5198R12022-03-18. Service bulletin. ELECTRICAL SYSTEM. Water infiltration inside roof fuses box
BS5210E2022-03-03. Service bulletin. ELECTRICAL SYSTEM. Horn may fail due to the low internal high heat resistance.
FT52322022-03-03. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Engine temperature too low. Engine code 3243
FT5199R12022-03-03. Service bulletin. ENGINE AND ENGINE COOLING. Missing gasket at flexible joint below

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.