Service bulletin Circular26N6REV2
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10180063 |
| Published by NHTSA | 2020-10-06 |
| Manufacturer's number | Circular26N6REV2 |
| Manufacturer's date | 2020-09-05 |
| NHTSA component | ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR |
NHTSA's summary
"Over time and mileage, the factory-installed catalyst may not perform as required. If the effectiveness of the catalyst is reduced, this may result in increased tailpipe emissions and the vehicle could fail an emissions (IM) inspection. • Updated claiming instructions and part information with Criteria M1 information. • Updated claiming and work instructions to include rivet (N -038-549-4) for the noise insulation. Due to a change in the repair manual, this rivet is now a mandatory replacement part. • Updated work instructions to include a caution about working with exhaust fasteners. "
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Engine, Exhaust and emissions, Catalytic converter
| VOLKSWAGEN ATLAS | 2018 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| DC_26M4_26N6 | 2022-09-01. Service bulletin. Over time and mileage, the factory-installed catalyst may not perform as required. If the effectiveness of the catalyst is reduced, this may result in increased tailpipe emissions and the vehicle could fail an emissions (IM) inspection. Removed requirement for adding a zip tie to the catalyst core REMINDER: The catalysts MUST be separated from the exhaust system for recycling. |
|---|---|
| Circ 26N6_REV5 | 2022-09-01. Service bulletin. Over time and mileage, the factory-installed catalyst may not perform as required. If the effectiveness of the catalyst is reduced, this may result in increased tailpipe emissions and the vehicle could fail an emissions (IM) inspection. Removed requirement for adding a zip tie to the catalyst core REMINDER: The catalysts MUST be separated from the exhaust system for recycling. |
| Circ 26M4_REV5 | 2022-09-01. Service bulletin. "Over time and mileage, the factory-installed catalyst may not perform as required. If the effectiveness of the catalyst is reduced, this may result in increased tailpipe emissions and the vehicle could fail an emissions (IM) inspection. Removed requirement for adding a zip tie to the catalyst core. REMINDER: The catalysts MUST be separated from the exhaust system for recycling. |
| Circular26M4REV2 | 2020-10-06. Service bulletin. "Over time and mileage, the factory-installed catalyst may not perform as required. If the effectiveness of the catalyst is reduced, this may result in increased tailpipe emissions and the vehicle could fail an emissions (IM) inspection. Updated claiming instructions and part information with Criteria M1 information. Updated claiming and work instructions to include rivet (N -038-549-4) for the noise insulation. Due to a change in the repair manual, this rivet is now a mandatory replacement part. Updated work instructions to include a caution about working with exhaust fasteners. |
| V0120012058261_1 | 2020-03-05. Service bulletin. Catalytic converter hardware improved for long-term durability. ECM software improved to reduce thermal stress on catalytic converter, prevent erroneous EVAP leak faults, and prevent erroneous fuel trim faults. |