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Service bulletins for the 2018 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.

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

By type

By component

By trouble code

Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
122-C4A5S-102018-10-15. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL. Technical Background The garage do or opener does not recognize the vehicle?s Homelink system and will not respond. This symptom only occurs on MyQ branded garage door openers. Many garage door opener manufacturers have a MyQ product line. (See common logos in figure 1.) The garage door opener itself, and not the vehicle, must be resynchronized.
122-B9L7S-072018-08-06. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. Subject: Control unit for rear-end electronics Symptom: The alarm system is triggered spontaneously (for no apparent reason). Cause: The mobile phone antenna (GSM) signals can be picked up by the interior surveillance system and result in spontaneous triggering of the alarm system.
122-R9H5B-072018-08-06. Service bulletin. ENGINE; EQUIPMENT ADAPTIVE/MOBILITY. Concerns: Belt tensioner Information: Checking belt tensioner in the event of a complaint about "leaks" before carrying out any other work.
122-H8L6P-072018-08-06. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY; EQUIPMENT. Information: Side sections can crack when replacing the tank module or charging module
122-B9V4V-062018-06-25. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Information: The Approval and Support Management system was created to offer assistance to the dealer organization with new and complex technical issues by utilizing the Support Specialists within Porsche R&D. As a result, this process has reduced vehicle downtime and repeat repairs substantially.
122-G6M3G-062018-06-25. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; FUEL SYSTEM, GASOLINE; EQUIPMENT. Symptom: The filler flap/charge port door is difficult to open or close. Cause: The filler flap/charge port door may be difficult to actuate due to unfavorable component tolerances on the affected vehicles. Remedial Action: Replace the filler flap/charge port door and rework it if necessary (if there is a visible edge) before fitting.
122-A2R4B-062018-06-25. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. There is a possibility that the pressure hose between the charge-air cooler and throttle valve for cylinders 4?6 is rubbing against the cooling fan housing on the affected vehicles. This can cause a leak in the pressure hose at the chafing point over the service life of the vehicle. This will result in reduced engine power and the Check Engine light will be activated.
122-T5A2Z-052018-05-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); EQUIPMENT. Condition The remote key battery is discharged before it?s expected. Technical Background A manufacturing defect damages the key and causes the key battery to discharge prematurely. This damage cannot be repaired.
122-R6Y8J-052018-05-21. Service bulletin. EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Condition The customer experiences an interruption in Apple CarPlay service after selecting the reverse gear. In other words, after the PCM screen displays the reverse camera, the PCM screen will not display Apple CarPlay until the user resets the PCM (perhaps by cycling the ignition).
122-E7C5Z-052018-05-21. Service bulletin. LATCHES/LOCKS/LINKAGES:FUELING/CHARGING DOOR/HATCH/PORT; FUEL SYSTEM, GASOLINE:DELIVERY; EQUIPMENT. Condition The fuel filler door flap, or the charging door flap is difficult to open or close. Technical Background The tolerance for the flap against the body is too tight.
122-M7G3R-052018-05-21. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Information: The 48-volt system on the affected vehicles can fail when the ignition is switched on due to incorrect initialization. As a result, the electronic anti-roll stabilization system (eAWS) of Porsche Dynamic Chassis Control (PDCC) will no longer be available until the next time the ignition is switched off and on again and the warning message "Chassis system fault - Adapted driving permitted" will be displayed in the menu on the instrument cluster. Remedial Action: Re-program control unit for 48-volt additional battery.
122-D9R9E-042018-04-23. Service bulletin. EQUIPMENT. This Technical Information is intended as a supplement to the existing information in the event of complaints about data processing or data transfer between the Porsche Diagnostic Key and reader. The list provided here is sorted according to possible faults and is not a complete list. The Porsche Diagnostic Key functions are used for the first time with the Porsche Panamera (971). Remote vehicle key/hand-held transmitters from other Porsche models or earlier model years cannot be read out.
122-A7E7V-032018-03-13. Service bulletin. EQUIPMENT. Customer Concern: The remote key battery is dead before its expected end of life. Technical Concern: The technician confirms this behavior. Service Information: For vehicles built before 8/19/2017, the key itself is defective and the battery likely performs as expected. In this case, replace the key.
122-Y3W6C-022018-02-12. Service bulletin. EQUIPMENT; STRUCTURE. Subject: Gap between rear spoiler and roof Information: There is a possibility that the gap dimension fromthe rear spoiler to the roof does not comply with specifications on the affected vehicles. Customers may regard this as a visual defect.
122-H7B7W-092017-09-14. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Information: Very small leaks may not be found on a normal inspection. Extra effort to locate these leaks is required.

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