# Service bulletin 122\-U8S4N\-05

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: 10117424
- Published by NHTSA: 2017\-09\-14
- Manufacturer's number: 122\-U8S4N\-05
- Manufacturer's date: 2015\-07\-08
- NHTSA component: ELECTRICAL SYSTEM:12V/24V/48V BATTERY

## NHTSA's summary

Concerns: 'High\-voltage battery' control unit Information: In the event of spare parts requirements for \* 'High\-voltage battery' control unit \* High\-voltage battery the software version must be checked after installing these components.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2015/MC-10117424-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2015/MC-10117424-0001.pdf)

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

## Components

Electrical system, 12\-volt battery

## Vehicles listed

- 2014 to 2015 PORSCHE PANAMERA S E\-HYBRID

## 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\-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\-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.
- [122\-W8J3S\-09](/bulletins/10117509.md), 2017-09-14, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Technical Concern: Porsche designs plug\-in hybrid vehicles to protect the health of the high voltage battery. One way the vehicle does this is by disabling high electrical load features when the high voltage battery has a low state of charge.
- [122\-U5S5J\-09](/bulletins/10117506.md), 2017-09-14, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Information: During the packaging of a High Voltage Lithium Ion battery, copies of The test log for classification of lithium\-ion high voltage batteries \(located in PIWIS \- Standard Forms\) must be attached inside the box and to the document bag on the exterior of the box as per the Workshop Manual 2X00IN Packing non\-critical high\-voltage battery \(970, 971, 92A\) or Workshop Manual 2708IN Packaging instructions for high\-voltage battery \(918\)
- [122\-L7N8T\-06](/bulletins/10117458.md), 2017-09-14, Service bulletin: HYBRID PROPULSION SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Concerns: High\-voltage battery control unit Information: This is to inform you of a voluntary Workshop Campaign on the above\-mentioned vehicles. The errormessage "Hybrid system failure \- Park vehicle safely" can appear sporadically in the instrument cluster on the affected vehicles because the high\-voltage system diagnostic function is too sensitive.
- [122\-J6D9Z\-05](/bulletins/10117433.md), 2017-09-14, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Concerns: Replacing cover for high\-voltage battery vent line Information: This is to inform you of a voluntary Workshop Campaign on the above\-mentioned vehicles. Vent line covers that do not comply with the latest standards may have been installed on the affected vehicles.

JSON: [/v1/bulletins/10117424](/v1/bulletins/10117424)

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