# Service bulletin 122\-N9Z4L\-07

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: 10120794
- Published by NHTSA: 2017\-10\-27
- Manufacturer's number: 122\-N9Z4L\-07
- Manufacturer's date: 2017\-06\-13
- NHTSA component: ELECTRICAL SYSTEM:12V/24V/48V BATTERY

## NHTSA's summary

Concerns: AGM starter battery \(referred to below simply as 'battery'\) Situation: Support for the care andmaintenance of the AGMstarter battery \(at the dealership\): From the time the vehicle is delivered to the Porsche Centre until it is handed over to the customer, the battery must be maintained and charged regularly, depending on use.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10120794-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10120794-0001.pdf)

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

## Components

Electrical system, 12\-volt battery

## Vehicles listed

- 2017 PORSCHE 718 BOXSTER
- 2016 PORSCHE 718 CAYMAN
- 2017 PORSCHE 718 CAYMAN
- 2012 to 2017 PORSCHE 911
- 2012 to 2015 PORSCHE BOXSTER
- 2012 to 2015 PORSCHE CAYMAN
- 2016 PORSCHE PANAMERA TURBO S

## Other bulletins for the same vehicles and component

- [No. 17\-20](/bulletins/10180560.md), 2020-10-01, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\); ENGINE AND ENGINE COOLING:COOLING SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. Service campaign information on Porsche Workshop Campaign WKK5 Workshop campaign \- Re\-programming air conditioning and high\-voltage battery control units.
- [No. 139\-20](/bulletins/10180552.md), 2020-10-01, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Information on replacing the HV battery on the Panamera S E Hybrid.
- [122\-S7H6V\-03](/bulletins/10130122.md), 2018-03-13, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Concerns: Battery trickle charging with "Charge\-o\-mat"may time out within a short period of time. The trickle charging will thus end prematurely. Thismay result in a dead battery. Information: The ?Charge\-o\-mat? device recommended by Porsche can be connected to the plug socket in the above\-mentioned vehicles again in accordance with instructions in order to trickle\-charge the battery \(e.g. in the showroom\) if: ? the gateway control unit is re\-coded beforehand using the PIWIS Tester with test software version 36.800.030 installed.
- [122\-X4J6P\-10](/bulletins/10122097.md), 2017-11-08, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Installation and Care of the Li\-ion Starter Battery
- [122\-R7W2C\-07](/bulletins/10120793.md), 2017-10-27, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Concerns: AGM starter battery \(referred to below simply as ?battery?\) Situation: Customer complaints concerning battery\-related topics Recurring customer complaints concerning topics relating to battery capacity and quality.
- [122\-Z6W8C\-07](/bulletins/10120792.md), 2017-10-27, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Subject: Discharge protection function of the batterymanagement system\(BMS\) in order to extend the service life of high\-voltage and low\-voltage batteries
- [122\-X3Y7Q\-07](/bulletins/10120791.md), 2017-10-27, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Concerns: AGM starter battery \(referred to below simply as 'battery'\) Situation: Support for the care andmaintenance of the AGMstarter battery \(at the dealership\): From the time the vehicle is delivered to the Porsche Centre until it is handed over to the customer, the battery must be maintained and charged regularly, depending on use.
- [122\-R8X7Z\-07](/bulletins/10120790.md), 2017-10-27, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Customer complaints concerning battery\-related topics Recurring customer complaints concerning topics relating to battery capacity and quality.
- [122\-W4G8S\-10](/bulletins/10119316.md), 2017-10-15, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. Technical Concern: By design, the vehicle gateway allows certain vehicle features to time\-out, in stages. This allows the vehicle to sleep. One feature that can time\-out is the 12 V DC power point \(cigarette lighter\) in the center console area. One of the recommended methods of using the battery maintainer is to plug the battery maintainer into this power point. If this power point becomes disabled, it will not allow current flow from the battery maintainer to the vehicle, the vehicle battery will not trickle charge, and the battery maintainer will eventually shut off.
- [122\-B7U4T\-05](/bulletins/10119291.md), 2017-10-15, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Customer Concern: Certain vehicle systems have unwanted, unpredictable behavior. Technical Concern: The symptoms are difficult to diagnose. There may be multiple symptoms intermittently affecting multiple systems. Though this is not an exhaustive list, some common failure modes are: ? Start/stop issues ? Power windows not fully returning to the parked position after automatic preopening ? PCM audio stopping during a start/stop cycle Ultimately, the technician determines that low 12\-volt battery voltage is the underlying root cause of the unwanted behavior. The technician corrects the battery?s low voltage. Consequently, the unwanted behavior ends.

JSON: [/v1/bulletins/10120794](/v1/bulletins/10120794)

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