# Service bulletin LI54.10\-P\-077542

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: 11000594
- Published by NHTSA: 2024\-05\-31
- Manufacturer's number: LI54.10\-P\-077542
- Manufacturer's date: 2024\-05\-06
- Campaign id or software version: LI54.10\-P\-077542
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

12V message comes on instrument cluster and/or Mmc app During a park cycle, the bus takes too long to go to sleep. Remedy Follow guided test for U116000, if present, and perform the requested SW updates. \(Refer to Li54.10\-P\-076896\). If U116000 is not present or after the SW updates have been performed, update the SCN coding of the EZS. After, lock the vehicle and place the key \>25 ft. away from the vehicle. Once the vehicle is in sleep mode, approach the vehicle with the key and verify that the key is not acknowledged \(door handles extend\) until roughly 13ft. from the vehicle. Once confirmed, faults can be cleared and vehicle released. \*Note \- Ensure the 12V battery is fully charged before releasing the vehicle to the customer. • Performing the test after SCN coding in the shop, may present an amplification factor and the key will still be recognized further than 13 ft. away. If this is the case, move the vehicle outside.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11000594-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11000594-9999.pdf)

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

## Components

Electrical system

## Trouble codes named

U1160

## Vehicles listed

- 2022 to 2024 MERCEDES\-BENZ AMG SL43
- 2024 MERCEDES\-BENZ AMG SL53E
- 2022 to 2024 MERCEDES\-BENZ AMG SL55
- 2022 to 2023 MERCEDES\-BENZ AMG SL63
- 2024 MERCEDES\-BENZ AMG SL63 S E

JSON: [/v1/bulletins/11000594](/v1/bulletins/11000594)

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