# Service bulletin LI27.00\-P\-071367

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: 10177567
- Published by NHTSA: 2020\-07\-27
- Manufacturer's number: LI27.00\-P\-071367
- Manufacturer's date: 2020\-06\-29
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ENGINE

## NHTSA's summary

When leaving gliding mode, the transmission can shift to neutral by itself. The complaint only occurs in drive program E. Check software release of transmission control unit and perform a software update.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10177567-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10177567-9999.pdf)

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

## Components

Electrical system, Engine, Transmission and driveline, Automatic transmission, Software, Transmission control module

## Vehicles listed

- 2020 MERCEDES\-BENZ A 220
- 2020 MERCEDES\-BENZ AMG A35
- 2020 MERCEDES\-BENZ CLA 250
- 2020 MERCEDES\-BENZ GLB 200
- 2020 MERCEDES\-BENZ GLB 250

JSON: [/v1/bulletins/10177567](/v1/bulletins/10177567)

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