Service bulletin 18NA089
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 | 10137422 |
| Published by NHTSA | 2018-05-21 |
| Manufacturer's number | 18NA089 |
| Manufacturer's date | 2018-03-22 |
| NHTSA component | ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE) |
NHTSA's summary
This informational bulletin provides information for higher mileage Volts that are having the EGR cooler being plugged not allowing sufficient flow with DTC being set.
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, EGR valve
| CHEVROLET VOLT | 2016, 2017, 2018 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 15-NA-080 | 2021-09-07. Service bulletin. Malfunction Indicator Lamp (MIL) On, Possible P0300, P040B, P041B, P01427 and/or P1429 TDCs Set |
|---|---|
| 15-NA-080 | 2021-04-20. Service bulletin. Malfunction Indicator Lamp (MIL) On, Possible P0300, P040B, P041B, P1427 and/or P1429 DTCs Set Some customers may comment on a check engine light illuminated. During diagnosis a technician may find one or more of the following DTCs set: • P0300 — Engine Misfire Detected • P040B — Exhaust Gas Recirculation Temperature Sensor 2 Circuit Range/Performance • P041B — Exhaust Gas Recirculation Temperature Sensor 1 Circuit Range/Performance • P1427 — EGR Temperature Sensor 1 – Intake Air Temperature 1 Not Plausible • P1429 — EGR Temperature Sensor 2 – Intake Air Temperature 1 Not Plausible This may be caused by a calibration within the K20 Engine Control Module |