# Service bulletin No. 26\-18 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: 10189604 - Published by NHTSA: 2021\-04\-02 - Manufacturer's number: No. 26\-18 - Manufacturer's date: 2021\-03\-01 - NHTSA component: ELECTRICAL SYSTEM ## NHTSA's summary Information on a Navigation system update for the PCM3.1 ## The document - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10189604-0001.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10189604-9999.pdf) The document is the manufacturer's. This site does not hold it. ## Components Electrical system ## Vehicles listed - 2017 PORSCHE 718 - 2016 PORSCHE 718 BOXSTER - 2017 to 2018 PORSCHE 718 BOXSTER - 2016 PORSCHE 718 CAYMAN - 2017 to 2018 PORSCHE 718 CAYMAN - 2012 to 2018 PORSCHE 911 - 2011 PORSCHE 911 \(997\) - 2011 to 2017 PORSCHE 911 CARRERA - 2012 to 2013 PORSCHE 911 CARRERA 4 - 2012 PORSCHE 911 CARRERA 4 GTS - 2012 PORSCHE 911 CARRERA 4S - 2012 PORSCHE 911 CARRERA GTS - 2012 PORSCHE 911 CARRERA S - 2011 to 2013 PORSCHE 911 GT2 - 2011 PORSCHE 911 GT2 RS - 2018 PORSCHE 911 GT2 RS - 2011 to 2016 PORSCHE 911 GT3 - 2018 PORSCHE 911 GT3 - 2011 PORSCHE 911 GT3 RS - 2016 PORSCHE 911 GT3 RS - 2016 PORSCHE 911 R - 2011 PORSCHE 911 SPEEDSTER - 2012 to 2017 PORSCHE 911 TARGA 4 - 2012 PORSCHE 911 TARGA 4S - 2011 to 2018 PORSCHE 911 TURBO - 2011 to 2012 PORSCHE 911 TURBO S - 2015 PORSCHE 918 - 2015 PORSCHE 918 SPYDER - 2016 PORSCHE 918 SPYDER - 2012 to 2015 PORSCHE BOXSTER - 2011 PORSCHE BOXSTER \(987\) - 2011 to 2014 PORSCHE BOXSTER S - 2012 PORSCHE BOXSTER SPYDER - 2011 to 2018 PORSCHE CAYENNE - 2011 PORSCHE CAYENNE \(E2\) - 2011 to 2012 PORSCHE CAYENNE S - 2015 to 2018 PORSCHE CAYENNE S E\-HYBRID - 2011 to 2013 PORSCHE CAYENNE S HYBRID - 2011 to 2012 PORSCHE CAYENNE TURBO - 2011 to 2015 PORSCHE CAYMAN - 2012 PORSCHE CAYMAN R - 2012 PORSCHE CAYMAN S - 2014 PORSCHE MACAN - 2015 to 2018 PORSCHE MACAN - 2017 to 2018 PORSCHE MACAN GTS - 2015 to 2018 PORSCHE MACAN S - 2015 to 2018 PORSCHE MACAN TURBO - 2011 to 2018 PORSCHE PANAMERA - 2011 to 2018 PORSCHE PANAMERA 4 - 2018 PORSCHE PANAMERA 4 EXECUTIVE - 2018 PORSCHE PANAMERA 4 HYBRID - 2018 PORSCHE PANAMERA 4 HYBRID EXECUTI - 2018 PORSCHE PANAMERA 4 HYBRID SPORT T - 2018 PORSCHE PANAMERA 4 SPORT TURISMO - 2011 to 2018 PORSCHE PANAMERA 4S - 2017 to 2018 PORSCHE PANAMERA 4S EXECUTIVE - 2018 PORSCHE PANAMERA 4S SPORT TURISMO - 2011 to 2016 PORSCHE PANAMERA GTS - 2011 to 2016 PORSCHE PANAMERA S - 2011 to 2016 PORSCHE PANAMERA S E\-HYBRID - 2011 to 2018 PORSCHE PANAMERA TURBO - 2017 to 2018 PORSCHE PANAMERA TURBO EXECUTIVE - 2012 to 2016 PORSCHE PANAMERA TURBO S - 2018 PORSCHE PANAMERA TURBO S E\-HYBRID - 2018 PORSCHE PANAMERA TURBO S HYBRID - 2018 PORSCHE PANAMERA TURBO S HYBRID E - 2018 PORSCHE PANAMERA TURBO S HYBRID S - 2018 PORSCHE PANAMERA TURBO SPORT TURI - 2017 PORSCHE redundant BOXSTER - 2014 PORSCHE redundant CAYENNE S HYBRID ## Recalls for the same vehicles and component - [23V033000](/recalls/nhtsa/23V033000.md), 2023-01-27: ELECTRICAL SYSTEM - [19V735000](/recalls/nhtsa/19V735000.md), 2019-10-16: SERVICE BRAKES; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL - [2019200](/recalls/tc/2019200.md), 2019-04-25: Electrical - [19V322000](/recalls/nhtsa/19V322000.md), 2019-04-24: ELECTRICAL SYSTEM - [2019115](/recalls/tc/2019115.md), 2019-03-06: Electrical - [19V180000](/recalls/nhtsa/19V180000.md), 2019-03-06: ELECTRICAL SYSTEM - [19V115000](/recalls/nhtsa/19V115000.md), 2019-02-20: SERVICE BRAKES; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL - [18V318000](/recalls/nhtsa/18V318000.md), 2018-05-16: ELECTRICAL SYSTEM - [2015217](/recalls/tc/2015217.md), 2015-05-21: Electrical - [13V506000](/recalls/nhtsa/13V506000.md), 2013-10-17: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL ## Other bulletins for the same vehicles and component - [No. 103\-25\-2](/bulletins/11037837.md), 2026-10-02, 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. 12\-26](/bulletins/11037795.md), 2026-10-02, Service bulletin: ELECTRICAL SYSTEM. Technical Information for Damage to Nano Plug Contacts Due to Utilization of Incorrect Measuring Equipment - [No. 2433\-4](/bulletins/11037061.md), 2026-09-04, Service bulletin: FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. Information on Advanced Technical Information for Porsche Mobile Charger NEMA Supply Cable Initialization Failure - [No. 2109\-3](/bulletins/11037058.md), 2026-09-04, Service bulletin: ELECTRICAL SYSTEM. Information on Advanced Technical Information for Critical 12V Li\-ion Battery Recycling - [No. 58\-26](/bulletins/11037048.md), 2026-09-04, Service bulletin: ELECTRICAL SYSTEM; VISIBILITY/WIPER. Symptom\-based workshop manual for Reversing Camera Spray Nozzle Not Working \- Dirty/Clogged/Air in the System - [102/25](/bulletins/11035929.md), 2026-08-06, Service bulletin: ELECTRICAL SYSTEM. PCCM\+ 9x7.II - [101/25](/bulletins/11035928.md), 2026-08-06, Service bulletin: ELECTRICAL SYSTEM. PCCM\+ 9x1.I - [GR13D797](/bulletins/11035889.md), 2026-08-05, Service bulletin: ELECTRICAL SYSTEM. Parts Withdrawal \- Steering Column Switch - [GR13D794](/bulletins/11035886.md), 2026-08-05, Service bulletin: ELECTRICAL SYSTEM; ENGINE. Parts Withdrawal \- Various Parts - [GR13D790](/bulletins/11034838.md), 2026-07-08, Other: ELECTRICAL SYSTEM; ENGINE. Parts Withdrawal \- Various Parts JSON: [/v1/bulletins/10189604](/v1/bulletins/10189604) [Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20No.%2026-18&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10189604&vehicle=Service%20bulletin%20No.%2026-18)