Technical Service Bulletin EG00299 — 1999 TOYOTA SIENNA
ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
Bulletin Details
| TSB ID | EG00299 |
| Manufacturer | |
| Vehicle | 1999 TOYOTA SIENNA |
| Component | ENGINE AND ENGINE COOLING:ENGINE:GASOLINE |
| Communication Date |
Bulletin Summary
SOME VEHICLES MAY EXHIBIT DIAGNOSTIC TROUBLE CODE P0420 INDICATING A POSSIBLE CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD CONDITION. *TT
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.