# Service bulletin S2118000011

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: 10221631
- Published by NHTSA: 2022\-09\-26
- Manufacturer's number: S2118000011
- Manufacturer's date: 2021\-07\-27
- NHTSA component: ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR:INTEGRATED STARTER\(OTHER THAN PROPULSION\)

## NHTSA's summary

Diagnostic Trouble Code \(DTC\) P049B ? EGR B Insufficient Flow Detected, Additional Diagnostics.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10221631-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10221631-9999.pdf)

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

## Components

Electrical system, Alternator

## Trouble codes named

P049B

## Vehicles listed

- 2021 JEEP GLADIATOR
- 2020 to 2021 JEEP WRANGLER
- 2020 to 2021 RAM 1500

## Other bulletins for the same vehicles and component

- [S2008000196](/bulletins/10187655.md), 2021-03-01, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR. Diagnostic Trouble Code \(DTC\) P065A ? Generator System Performance, Additional Information.
- [09\-007\-20](/bulletins/10176568.md), 2020-06-22, Service bulletin: ENGINE; ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR; EQUIPMENT. Inspect Hydraulic Belt Tensioner This bulletin involves inspecting the Julian date on the hydraulic belt tensioner for possible replacement. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Codes \(DTCs\) have been set:P2BA3\-00 \- Starter/Generator Mechanical Performance. P0A92\-00 \-Hybrid Generator Performance. Customers may also experience the following:Dead battery. The accessory drive belt may be slipping or belt noise.

JSON: [/v1/bulletins/10221631](/v1/bulletins/10221631)

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