Service bulletin No. 28-26
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 | 11037816 |
| Published by NHTSA | 2026-10-02 |
| Manufacturer's number | No. 28-26 |
| Manufacturer's date | 2026-09-22 |
| NHTSA component | POWER TRAIN; ENGINE |
NHTSA's summary
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.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Engine, Transmission and driveline
| PORSCHE 718 | 2017 |
|---|---|
| PORSCHE 718 BOXSTER | 2016 |
| PORSCHE 718 BOXSTER | 2017, 2018, 2019, 2020 |
| PORSCHE 718 BOXSTER S | 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 718 CAYMAN | 2016 |
| PORSCHE 718 CAYMAN | 2017, 2018, 2019, 2020 |
| PORSCHE 718 CAYMAN S | 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 718 SPYDER | 2018 to 2019 |
| PORSCHE 718 SPYDER | 2020 |
| PORSCHE 911 | 2002, 2003, 2004, 2005 |
| PORSCHE 911 | 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 |
| PORSCHE 911 (997) | 2005, 2006, 2007, 2008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA | 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA | 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA 4 | 2009 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA 4 | 2012, 2013 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA 4 CABRIOLET | 2003 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA 4 GTS | 2012 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA 4S | 2003 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA 4S | 2009 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA 4S | 2012 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA CABRIOLET | 2003 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA GTS | 2012 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA S | 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA S CABRIOLET | 2005, 2006 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 GT2 | 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 GT2 | 2019 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 GT2 RS | 2010, 2011 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 GT2 RS | 2018, 2019 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 GT3 | 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 GT3 | 2018, 2019 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 GT3 RS | 2008 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 GT3 RS | 2010, 2011 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 GT3 RS | 2016 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 GT3 RS | 2019 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 R | 2016 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 SPEEDSTER | 2011 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 TARGA | 2003 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 TARGA 4 | 2009 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 TARGA 4 | 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 TARGA 4S | 2009 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 TARGA 4S | 2012 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 TARGA 4S | 2014 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 TURBO | 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 TURBO S | 2005 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 TURBO S | 2010, 2011, 2012 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 918 | 2015 |
| PORSCHE 918 SPYDER | 2014 |
| PORSCHE 918 SPYDER | 2015 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 918 SPYDER | 2016 |
| PORSCHE 987 CAYMAN | 2009 |
| PORSCHE 996 TURBO | 2002 |
| PORSCHE 997 (911) | 2008 |
| PORSCHE BOXSTER | 2002, 2003, 2004, 2005, 2006 |
| PORSCHE BOXSTER | 2012, 2013, 2014, 2015 |
| PORSCHE BOXSTER (987) | 2005, 2006, 2007, 2008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE BOXSTER S | 2002, 2003, 2004, 2005 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE BOXSTER S | 2011, 2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE BOXSTER SPYDER | 2012 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CARRERA GT | 2004 to 2005 |
| PORSCHE CARRERRA GT | 2006 |
| PORSCHE CAYENNE | 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 |
| PORSCHE CAYENNE (E2) | 2011 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE DIESEL | 2013, 2014, 2015 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE E-HYBRID | 2014 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE E-HYBRID | 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE GT | 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE GTS | 2006, 2007, 2008, 2009, 2010 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE GTS | 2013, 2014 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE GTS | 2016 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE S | 2003, 2004, 2005, 2006, 2007, 2008, 2009 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE S | 2011, 2012, 2013, 2014, 2015 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE S | 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE S E-HYBRID | 2015, 2016, 2017, 2018 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE S E-HYBRID | 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE S HYBRID | 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE TRANSSYBERIA | 2010 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE TURBO | 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE TURBO | 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE TURBO COUPE | 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE TURBO S | 2006, 2007, 2008, 2009, 2010 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE TURBO S | 2014 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE TURBO S | 2016 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE TURBO S E-HYBRID | 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE TURBO S HYB COUPE | 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYMAN | 2005 |
| PORSCHE CAYMAN | 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 |
| PORSCHE CAYMAN | 2020 |
| PORSCHE CAYMAN GT4 | 2016 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYMAN GT4 | 2020 |
| PORSCHE CAYMAN GTS | 2020 |
| PORSCHE CAYMAN R | 2012 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYMAN S | 2005 |
| PORSCHE CAYMAN S | 2006 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYMAN S | 2012 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYMAN S | 2014 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE GT2 | 2002 |
| PORSCHE MACAN | 2014 |
| PORSCHE MACAN | 2015, 2016, 2017, 2018, 2019, 2020 |
| PORSCHE MACAN GTS | 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE MACAN S | 2015, 2016, 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE MACAN SPORT EDITION | 2018 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE MACAN TURBO | 2015, 2016, 2017, 2018 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE MACAN TURBO | 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 |
| PORSCHE PANAMERA 4 | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA 4 E-HYBRID | 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA 4 EXECUTIVE | 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA 4 HYBRID | 2018 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA 4 HYBRID EXECUTI | 2018 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA 4 HYBRID SPORT T | 2018 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA 4 SPORT TURISMO | 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA 4S | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA 4S E-HYBRID | 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA 4S EXECUTIVE | 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA 4S SPORT TURISMO | 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA GTS | 2010, 2011, 2012, 2013, 2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA GTS | 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA GTS SPORT TURISM | 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA S | 2010, 2011, 2012, 2013, 2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA S E-HYBRID | 2011, 2012, 2013, 2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA S HYBRID | 2011, 2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA TURBO | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA TURBO EXECUTIVE | 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA TURBO S | 2012, 2013, 2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA TURBO S E-HYBRID | 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA TURBO S HYBRID | 2018 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA TURBO S HYBRID E | 2018 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA TURBO S HYBRID S | 2018 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA TURBO SPORT TURI | 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 21V679000 | 2021-09-01. POWER TRAIN:AXLE ASSEMBLY |
|---|---|
| 20V381000 | 2020-07-01. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT |
| 2020211 | 2020-05-14. Powertrain |
| 20V271000 | 2020-05-13. POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES |
| 2019291 | 2019-06-12. Powertrain |
| 2019290 | 2019-06-12. Powertrain |
| 19V446000 | 2019-06-12. POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL) |
| 19V445000 | 2019-06-12. POWER TRAIN:AXLE HUBS; POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT |
| 2017296 | 2017-06-07. Engine |
| 17V368000 | 2017-06-07. ENGINE |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| No. 91-26 | 2026-10-02. Service bulletin. Technical Information for Particles/Metal Chips/Residues in Engine Oil |
|---|---|
| No. 103-25-2 | 2026-10-02. Service bulletin. 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. 37-26 | 2026-10-02. Service bulletin. Manufacturer's Certificate for Overview of approved Porsche C40 GT engine oils |
| No. 27-26 | 2026-10-02. Service bulletin. 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. 26-26 | 2026-10-02. Service bulletin. 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. 25-26 | 2026-10-02. Service bulletin. 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. 81-26 | 2026-10-02. Service bulletin. Technical Information for Yellow Warning Message “All-Wheel Drive System Malfunction”, “C12BEF6” and “C133700” in the All-Wheel Electronics Control Unit |
| GR13D802 | 2026-09-04. Service bulletin. Parts Information for Parts Withdrawal - Coolant Regulator Housing |
| No. 2304-2 | 2026-09-04. Service bulletin. Information on Advanced Technical Information for E3.I/G2 V8 – Oil/Air Separator Membrane Failure |
| 18/26 | 2026-08-06. Warranty extension. Warranty Information: Warranty Extension for Transmission Electronics Control Unit (18/26) |