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Service bulletins for the 2014 Porsche Panamera

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.

558 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
122-T7Y5Q-122017-12-14. Service bulletin. ELECTRICAL SYSTEM. Information: This document updates information previously published in EQ 1105, EQ 1105, and EQ 1401. To provide stable voltage and sufficient current throughout certain service operations, you should connect the vehicle to a battery charger (sometimes referred to as a power supply). However, you may experience ECU programming and coding issues if the chosen battery charger has insufficient power. Many workshop manuals currently advise use of a battery charger with a 40 or 70 A current rating. However, with the increasing current requirements of modern Porsche vehicles, we recommend a battery charger capable of producing a minimum current of 90 A.
122-P6P7K-102017-11-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. There is increased friction in the air spring compressor valves at temperatures below ?13° F (?25° C). This can result in a situation in which the maximum control current is not sufficient to actuate the valves. As a result, a warning message will be displayed in the instrument cluster and Porsche Active Suspension Management (PASM) will stop working temporarily. Re-program PASM control unit using the PIWIS Tester with software version 33.010.030 (PIWIS Tester 3) or version 17.100.030 (PIWIS Tester II) or a higher software version installed.
122-Z6W8C-072017-10-27. 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-072017-10-27. 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-072017-10-27. 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-U5S5J-092017-09-14. 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-E5F6L-062017-09-14. Service bulletin. ELECTRICAL SYSTEM. Concerns: Power distributor Information: In the event of complaints relating to the overall power supply on the vehicle and if "Connections in power distributor corroded"? is discovered as the cause of the fault, the cover on the power distributor (? Figure 1) must be sealed using new sealant. Complaints can include various malfunctions in the vehicle electrics (fault in PCM, failure of power windows or similar problems) or various error messages displayed in the instrument cluster.
122-C8W5T-062017-09-14. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. Concerns: Charging electronics Information: This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. Implausible fault entries can be stored in the fault memory on the affected vehicles even though there is no fault in the system due to a software error in the charging electronics.
122-L7N8T-062017-09-14. 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-W7J3A-062017-09-14. Service bulletin. ELECTRICAL SYSTEM. Concerns: E-box for the high-voltage system Information: This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. An E-box for the high-voltage system that does not comply with current standards was installed in the affected vehicles. The new E-box is considerably more robust than the existing standard version.
122-J5A5S-052017-09-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. Concerns: High-voltage battery control unit Information: This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. New software for the high-voltage battery control unit is available for the affected vehicles. This software improves or corrects the following: The temperature of the high-voltage battery is monitored by two temperature sensors for each cell module. The current diagnostic setup of the high-voltage system does not allow for this redundancy and causes the warning message "Hybrid system failure - Park vehicle safely" to be displayed in the instrument cluster if one temperature sensor fails even though the temperature of the cell module is still monitored reliably by the remaining sensor.
122-J6D9Z-052017-09-14. 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.
122-U8S4N-052017-09-14. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. 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.
122-J8S7Q-062017-08-01. Service bulletin. HYBRID PROPULSION SYSTEM; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:SOFTWARE. Concerns: Power electronics for the high-voltage system Information: This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. A fault can occur in the temperature monitoring system for the high-voltage system at low outside temperatures due to a software error in the power electronics. If this happens, the yellow warning message "Hybrid system fault" will be displayed in the instrument cluster and the performance of the electric motor will be reduced by up to 50%. But the vehicle can still be driven.
122-A2N2B-062017-08-01. Service bulletin. HYBRID PROPULSION SYSTEM; ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. Concerns: ? Decoupler for hybrid system ? High-voltage battery control unit Information: This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. ? Minimal clutch slip can occur on the decoupler for the hybrid system in certain driving conditions on new vehicles with a lowmileage as a result of corrosion protection residues. As a result, the error message "Hybrid system failure - Park vehicle safely" can appear in the instrument cluster. The vehicle is ready to drive again after switching the ignition off and on again, but the fault can occur again up to and including the tenth time the combustion engine is engaged. ? The history-based electric energy requirements, among other things, are taken into account when calculating the vehicle's electric range. Depending on the driving profile while transporting the vehicle (e.g. high electric energy requirements when manoeuvring the vehicle), the customer may find that a low electric range is displayed initially following vehicle delivery.
122-V8Q9H-062017-08-01. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM; HYBRID PROPULSION SYSTEM. Concerns: High-voltage battery Information: This is to inform you of a Stop Sale/Workshop Campaign on the above-mentioned vehicles. There is a possibility that high-voltage batteries from a batch that does not conform to the high quality standards of Porsche AGmay have been installed in the affected vehicles. As a result, the high-voltage battery may fail after the vehicle has been driven for just a short time. If this happens, the message "Hybrid system failure" will be displayed in the instrument cluster
122-D7F5F-062017-08-01. Service bulletin. ELECTRICAL SYSTEM; HYBRID PROPULSION SYSTEM. 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. The vehicle can then no longer be driven.
122-F4A5V-062017-08-01. Service bulletin. ELECTRICAL SYSTEM. Concerns: Rear-end electronics control unit Information: This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. New data records for the rear-end electronics control unit are available for the affected vehicles.
122-H3G7P-062017-08-01. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Concerns: Instrument cluster Information: This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles.Due to a software error in the instrument cluster, the departure time set in the departure timermay be read incorrectly while the high-voltage battery is charging. As a result, there is a possibility that the vehicle's high-voltage battery may not be fully charged by the required departure time.
122-W3M6V-062017-08-01. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. Concerns: Gateway control unit Information: This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. The range on remaining fuel calculation may be inaccurate in the affected vehicles due to a software error. As a result, the range on remaining fuel calculation displayed may be up to 60 miles (100 km) less than the range achievable on the remaining fuel.
122-S7Y6Y-062017-08-01. Service bulletin. TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS; ELECTRICAL SYSTEM:SOFTWARE. Concerns: Tire Pressure Monitoring control unit (referred to below as "TPM control unit") Information: This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. High speeds (> 165mph/270 km/h) can cause an implausible warning message due to a software error in the TPM control unit. If this happens, the warning message "Tire pressure! Reduce speed" appears in the instrument cluster, although no pressure loss has occurred in the tire.
122-W9W2E-062017-08-01. Service bulletin. ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL; ELECTRICAL SYSTEM; POWER TRAIN. Concerns: DME control unit Information: This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. The following software errors in the DME control unit can cause the following inconveniences when driving: ? When manually engaging the accelerator, the adaptive cruise control deactivates instead of just temporarily switching to passive. ? The Hold function is unavailable due to an upward slope detection malfunction. ? Complaints relating to noises from the dual-mass flywheel area.
122-Q5C4S-062017-07-28. Service bulletin. ENGINE; ELECTRICAL SYSTEM:WIRING. Issue: Oil in the wiring harness. Information: If oil is found in the engine wiring harness during a repair, the wiring harness and all the affected components (including the oil pump control valve) must be replaced.
42/102016-07-07. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:SOFTWARE. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
TI-29-142014-10-31. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. PORSCHE: THE HIGH VOLTAGE SYSTEM DIAGNOSTIC FUNCTION IS OVERLY SENSITIVE AND SPORADICALLY AN ERROR MESSAGE HYBRID SYSTEM FAILURE-PARK VEHICLE SAFELY WOULD APPEAR AN HIGH VOLTAGE BATTERY CONTROL UNIT NEEDS TO BE REPROGRAMMED. MODEL 2014 PANAMERA S E HYBRID. *PE

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.