Technical Service Bulletin S4636 102025 — 2026 VOLVO VN
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | S4636 102025 |
| Manufacturer | |
| Vehicle | 2026 VOLVO VN |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
SC - Vehicles were programmed with the incorrect Engine Electronic Control Unit (EECU) Software.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.