# Service bulletin ATI\-4\-1303

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: 10053443
- Published by NHTSA: 2013\-10\-28
- Manufacturer's number: ATI\-4\-1303
- Manufacturer's date: 2015\-02\-23
- Replaces: ATI\-4\-1303\-A
- NHTSA component: SERVICE BRAKES

## NHTSA's summary

PORSCHE: WHEN THE FAULT CODE P055600 IS STORED, SOME VEHICLES MAY REQUIRE THE BRAKE BOOSTER VACUUM SYSTEM FUNCTION TO BE TESTED. MODEL ALSO INCLUDED PANAMERA S HYBRID \(970\) MODEL YEAR 2013. \*JS UPDATED 6/12/15. \*PE

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Brakes

## Trouble codes named

P0556

## Vehicles listed

- 2012 PORSCHE PANAMERA S HYBRID

## Other bulletins for the same vehicles and component

- [No. D752](/bulletins/11028352.md), 2026-02-05, Service bulletin: SERVICE BRAKES. Parts information for parts withdrawal involving the caliper without brake pads. The part numbers affected are in the attached PDF. The vehicles associated are cars that use the part numbers in the PDF.
- [No. D749](/bulletins/11026376.md), 2025-12-05, Service bulletin: SERVICE BRAKES. Parts information for parts withdrawal involving the brake disc 9Y0615301AJ
- [D719](/bulletins/11018757.md), 2025-06-02, Service bulletin: SERVICE BRAKES. Parts information for Parts Withdrawal \- 1 Set of Brake Pads for Disk Brake. Vehicles included are all cars that use part number 992698451R
- [No. D689](/bulletins/11005786.md), 2024-08-06, Service bulletin: SERVICE BRAKES. Parts information for parts withdrawal involving the brake hose 9J1611707F and 9J1611708F
- [No. D684](/bulletins/11002860.md), 2024-07-02, Service bulletin: SERVICE BRAKES. Parts information for parts withdrawal involving the retainer for brake hose/brake line
- [No. D681](/bulletins/11001069.md), 2024-06-05, Service bulletin: SERVICE BRAKES. Parts information for parts withdrawal involving the retainer for brake hose/pressure difference sender. \(9J1611845C, 9J1611846C, PAB906051C\)
- [No. 1801.4](/bulletins/10209901.md), 2022-04-05, Service bulletin: SERVICE BRAKES. Advanced technical information for a brake squeal.
- [ATIALL41605](/bulletins/10198525.md), 2021-06-28, Service bulletin: EQUIPMENT; SERVICE BRAKES. Understanding and addressing brake squeal complaints.
- [ATI41303](/bulletins/10198517.md), 2021-06-28, Service bulletin: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. ATI \- Fault P055600 Brake Vacuum System: Mechanical Fault Stored in DME \(1303\) \- Check Engine and Hybrid warning illuminated.
- [122\-S6Q2R\-06](/bulletins/10188291.md), 2021-03-06, Service bulletin: EQUIPMENT; SERVICE BRAKES. Resubmitting at request of Mr. Bernard Hardgrave. Advanced technical information on brake fluid for all Porsche vehicles.

JSON: [/v1/bulletins/10053443](/v1/bulletins/10053443)

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