# Service campaign N242469060

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 campaign
- NHTSA id: 11006063
- Published by NHTSA: 2024\-08\-07
- Manufacturer's number: N242469060
- Manufacturer's date: 2024\-08\-07
- Campaign id or software version: N242469060
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

Certain vehicles may erroneously experience an illuminated Check Engine Malfunction Indicator Lamp \(MIL\) with Diagnostic Trouble Codes \(DTC\) P2201 NOx Sensor Circuit Performance Sensor 1 and/or P20EE Diesel Exhaust Fluid \(DEF\) System NOx Trap Low Efficiency. Dealers will reprogram the ECM and/or the DCU with the corrected service calibrations.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11006063-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11006063-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Trouble codes named

P20EE, P2201

## Vehicles listed

- 2022 to 2023 CHEVROLET 4500HD
- 2022 CHEVROLET 4500XD
- 2022 to 2023 CHEVROLET 5500HD
- 2022 CHEVROLET 5500XD

JSON: [/v1/bulletins/11006063](/v1/bulletins/11006063)

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