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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
BS5580E2024-04-30. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. One fire suppression system pipe may be installed backwards and interfere with an alternator cable, creating friction that could damage one or both components.
FT55672024-03-29. Service bulletin. ELECTRICAL SYSTEM. Battery Unbalanced Light Logic with AGM Battery.
FT55502024-03-29. Service bulletin. ELECTRICAL SYSTEM. The Parker PHD70 display might freeze or not work properly.
FT55542024-03-04. Service bulletin. ENGINE AND ENGINE COOLING. The Cabin Coolant Level Sensors for the LOW and HIGH levels are swapped.
BS5495E2024-02-24. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; VISIBILITY. HVAC coolant pipe leaks from various solder locations.
BS5540E2024-02-24. Service bulletin. POWER TRAIN. P-clamps holding the transmission coolant pipes can break.
BS5543E2024-02-24. Service bulletin. ELECTRICAL SYSTEM. Battery tray structure cracks due to thin sheet metal.
FT55342024-02-01. Service bulletin. ELECTRICAL SYSTEM. The ground of the IVN unit (Intelligent Vehicle Network) could be connected to the wrong place.
BS5468E2024-01-04. Service bulletin. STRUCTURE. Driver barrier door stanchion hardware loose, missing, or broken.
BS5511E2023-12-22. Service bulletin. ENGINE AND ENGINE COOLING. The EGR cooling hose N95062-48 is not rated for the engine compartment temperature. Under certain conditions the EGR cooling hose may crack and cause coolant leak.
FT55362023-12-22. Service bulletin. ELECTRICAL SYSTEM. Battery Tray Structure Cracks. Battery hold downs may slip between batteries.
LI5427E2023-12-22. Service bulletin. ENGINE AND ENGINE COOLING. Improved durability of engine-side heat exchanger hoses.
BS5469E2023-12-22. Service bulletin. ENGINE AND ENGINE COOLING. The belt guard hinge may crack.
BS5503E2023-12-02. Service bulletin. ELECTRICAL SYSTEM. The WHA11 harness has a potential chafing issue.
FT55142023-11-24. Service bulletin. STRUCTURE; STRUCTURE:BODY:DOOR. Upper door shaft nut may get loose.
FT5510E2023-11-24. Service bulletin. STRUCTURE. Lower door shaft nut may get loose.
FT54482023-11-01. Service bulletin. ENGINE AND ENGINE COOLING; STEERING. Rework allied motion e-Steering motor. 24V e-steering power supply threads length tolerances might not be respecting to the drawing specifications.
BS5447E2023-11-01. Service bulletin. ENGINE AND ENGINE COOLING; STEERING. Rework allied motion e-Steering motor. 24V e-steering power supply threads length tolerances are not respect to standard.
LI5485E2023-10-31. Service bulletin. EXTERIOR LIGHTING. Introduction of headlight N109645 to replace N71373. The new headlight is interchangeable and offers better protection against water intrusion. It is possible to replace only one headlight if necessary.
FT54652023-10-29. Service bulletin. ELECTRICAL SYSTEM. Erroneous Fault Codes reporting on the AVM System of Clever Devices.
FT54092023-10-29. Service bulletin. POWER TRAIN. A bad connection at the ZF transmission connector may cause the transmission to jerk when shifting or show the fault code 188.
FT54552023-09-26. Service bulletin. VISIBILITY. Brass fitting (N79131) leaks found at BL2 and BL4 two-way valve, repairs were performed not per AVT0029.
FT5314R12023-07-13. Service bulletin. POWER TRAIN. P-Clamp failure on Transmission cooling pipes. P-Clamp cannot withstand the load of the cooling pipes. Thicker P-clamp as a containment solution.
FT54052023-07-12. Service bulletin. STEERING. Power steering lines chaffing the rear shell.
FT5404E2023-07-12. Service bulletin. STEERING. There is a potential restriction of fluid due to an improperly placed clamp which could cause the power steering system to not operate has intended.

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