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Service bulletins for the 2020 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.

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

Warranty extensions
No. 50-26-22026-09-04. POWER TRAIN; ENGINE. Update to Warranty Information: Warranty Extension for Additional Coolant Pump
18/262026-08-06. POWER TRAIN. Warranty Information: Warranty Extension for Transmission Electronics Control Unit (18/26)
50/262026-08-05. ENGINE. Warranty Information: Warranty Extension for Coolant Pump (50/26)

A warranty extension may pay for a repair after the basic warranty has ended. Read the document for which vehicles and which repair it covers.

By type

By component

By trouble code

Bulletins, newest first
SPTL26092026-10-02. Service bulletin. WHEELS; STEERING; SUSPENSION. Special Tools and Equipment Information for alignment machines - Q3 2026 Software Spec Update Available
No. 103-25-22026-10-02. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. Technical Information for Need to Replace Components of the High-Voltage Battery - High-Voltage Battery Control Unit / Cell module; No Mixed Installation Permitted: Observe Specified Approach
No. 28-262026-10-02. Service bulletin. POWER TRAIN; ENGINE. Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils. Note that this bulletin covers all models back to model year 1984, for which C40 engine oils are allocated.
No. 27-262026-10-02. Service bulletin. POWER TRAIN; ENGINE. Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils. Note that the bulletin covers all models back to model year 1984, for which C20 engine oils are allocated.
No. 26-262026-10-02. Service bulletin. ENGINE; POWER TRAIN. Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils. Note that the bulletin includes all models back to model year 1984, for which C30 engine oils are allocated.
No. 25-262026-10-02. Service bulletin. POWER TRAIN; ENGINE. Manufacturer's Certificate for Overview of Approved Porsche A40 Engine Oils. Note that this bulletin covers all vehicles from model year 1997 to 2020, for which A40 engine oils are assigned. Model years 1997-2001 are not available for selection in the system.
No. 12-262026-10-02. Service bulletin. ELECTRICAL SYSTEM. Technical Information for Damage to Nano Plug Contacts Due to Utilization of Incorrect Measuring Equipment
SPTL2314a2026-09-04. Service bulletin. UNKNOWN OR OTHER. Special Tools and Equipment Information for Diagnostic Equipment Standards for all USA Porsche Centers
SPTL26082026-09-04. Service bulletin. WHEELS; SUSPENSION; STEERING. Special Tools and Equipment Information for alignment machines - Q2 2026 Software Spec Update Available
GR16D8a2026-09-04. Service bulletin. UNKNOWN OR OTHER. Product Knowledge for Model Type Designations
GR16D82026-09-04. Service bulletin. UNKNOWN OR OTHER. Product Knowledge for Chassis/VIN Numbering Systems
GR13D8022026-09-04. Service bulletin. ENGINE; POWER TRAIN. Parts Information for Parts Withdrawal - Coolant Regulator Housing
No. 2433-42026-09-04. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. Information on Advanced Technical Information for Porsche Mobile Charger NEMA Supply Cable Initialization Failure
No. 2315-12026-09-04. Service bulletin. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. Information on Advanced Technical Information for Porsche Mobile Charger Plus (PMC+) Red LEDs and Fault B191E49
No. 2304-22026-09-04. Service bulletin. ENGINE; POWER TRAIN. Information on Advanced Technical Information for E3.I/G2 V8 – Oil/Air Separator Membrane Failure
No. 58-262026-09-04. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY/WIPER. Symptom-based workshop manual for Reversing Camera Spray Nozzle Not Working - Dirty/Clogged/Air in the System
No. 50-26-22026-09-04. Warranty extension. POWER TRAIN; ENGINE. Update to Warranty Information: Warranty Extension for Additional Coolant Pump
51/262026-08-06. Service bulletin. POWER TRAIN. Shrill Humming/Clacking Noise from the Engine Compartment: Check Mounting/Fastening of the ATF Cooler and/or ATF Lines (SY 51/26)
74/252026-08-06. Service bulletin. AIR BAGS. Belt Lock Warning on Driver Side Permanently Active / No Fault Memory Entries: Delete Airbag Control Unit Fault Memory (SY 74/25)
18/262026-08-06. Warranty extension. POWER TRAIN. Warranty Information: Warranty Extension for Transmission Electronics Control Unit (18/26)
13/262026-08-06. Service bulletin. ENGINE. Allocation of Approved Engine Oils MY 2027 (13/26)
50/262026-08-05. Warranty extension. ENGINE. Warranty Information: Warranty Extension for Coolant Pump (50/26)
GR13D7972026-08-05. Service bulletin. ELECTRICAL SYSTEM. Parts Withdrawal - Steering Column Switch
GR13D7942026-08-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Parts Withdrawal - Various Parts
SPTL 2607a2026-08-05. Service bulletin. UNKNOWN OR OTHER. VAS 621001A Matrix Headlamp Aimer – Automatic Shipment / Maha Installation

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