TSB: PORSCHE 911, 911 (997), 911 CARRERA, 911 CARRERA 4 CABRIOLET, 911 CARRERA 4S, 911 CARRERA CABRIOLET, 911 CARRERA S, 911 CARRERA S CABRIOLET, 911 GT2, 911 GT3, 911 GT3 RS, 911 TARGA, 911 TURBO, 911SC, 968, 996 TURBO, BOXSTER, BOXSTER (987), BOXSTER (987), BOXSTER S, CABRIOLET, CARRERA, CARRERA GT, CARRERRA GT, CAYENNE, CAYENNE GTS, CAYENNE S, CAYENNE TURBO, CAYMAN S, GT2, PORSCHE, TARGA (1994–2008)
Bulletin D77 — May 21, 2008
Bulletin Details
| Bulletin ID | D77 |
| Manufacturer | PORSCHE |
| Models | 911, 911 (997), 911 CARRERA, 911 CARRERA 4 CABRIOLET, 911 CARRERA 4S, 911 CARRERA CABRIOLET, 911 CARRERA S, 911 CARRERA S CABRIOLET, 911 GT2, 911 GT3, 911 GT3 RS, 911 TARGA, 911 TURBO, 911SC, 968, 996 TURBO, BOXSTER, BOXSTER (987), BOXSTER (987), BOXSTER S, CABRIOLET, CARRERA, CARRERA GT, CARRERRA GT, CAYENNE, CAYENNE GTS, CAYENNE S, CAYENNE TURBO, CAYMAN S, GT2, PORSCHE, TARGA |
| Model Years | 1994–2008 |
| Date Issued | May 21, 2008 |
| Date Added to NHTSA | July 16, 2008 |
| Component | VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| Vehicles Affected | 118 combinations |
What is a TSB?
A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.
If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.
Summary
PARTS WITHDRAW; PORSCHE CARS NORTH AMERICA REQUESTS RETURN OF THE FOLLOWING UNITS TO PCNA: PART NUMBERS 955 628 320 00 AND 955 628 321 00; DESCRIPTION TIP SWITCH. *PE
Affected Vehicles
| Make | Model | Year | Component |
|---|---|---|---|
| PORSCHE | 911 (997) | 2008 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 GT3 | 2008 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 GT3 RS | 2008 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | BOXSTER (987) | 2008 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYENNE | 2008 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYENNE S | 2008 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYENNE TURBO | 2008 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 (997) | 2007 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 TURBO | 2007 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | BOXSTER (987) | 2007 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | BOXSTER (987) | 2007 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYENNE | 2007 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYENNE GTS | 2007 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYENNE S | 2007 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYENNE TURBO | 2007 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 (997) | 2006 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA S | 2006 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA S CABRIOLET | 2006 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | BOXSTER | 2006 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | BOXSTER (987) | 2006 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CARRERRA GT | 2006 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYENNE | 2006 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYENNE GTS | 2006 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYENNE S | 2006 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYENNE TURBO | 2006 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYMAN S | 2006 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 (997) | 2005 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA | 2005 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA S | 2005 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA S CABRIOLET | 2005 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | BOXSTER | 2005 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | BOXSTER (987) | 2005 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CARRERA GT | 2005 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYENNE | 2005 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYENNE S | 2005 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYENNE TURBO | 2005 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA | 2004 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 GT2 | 2004 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 GT3 | 2004 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 TURBO | 2004 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | BOXSTER | 2004 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CARRERA GT | 2004 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYENNE | 2004 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYENNE S | 2004 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYENNE TURBO | 2004 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 | 2003 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA | 2003 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA 4 CABRIOLET | 2003 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA 4S | 2003 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA CABRIOLET | 2003 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 GT2 | 2003 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 GT3 | 2003 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 TARGA | 2003 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 TURBO | 2003 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | BOXSTER | 2003 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | BOXSTER S | 2003 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYENNE | 2003 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYENNE S | 2003 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CAYENNE TURBO | 2003 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 | 2002 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA | 2002 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 TURBO | 2002 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 996 TURBO | 2002 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | BOXSTER | 2002 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | BOXSTER S | 2002 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | GT2 | 2002 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | PORSCHE | 2002 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 | 2001 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA | 2001 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 TURBO | 2001 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 968 | 2001 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | BOXSTER | 2001 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | BOXSTER S | 2001 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CARRERA | 2001 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | PORSCHE | 2001 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 | 2000 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA | 2000 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911SC | 2000 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | BOXSTER | 2000 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | BOXSTER S | 2000 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 | 1999 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA | 1999 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | BOXSTER | 1999 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CABRIOLET | 1999 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CARRERA | 1999 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | PORSCHE | 1999 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 | 1998 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA | 1998 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA 4 CABRIOLET | 1998 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA CABRIOLET | 1998 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | BOXSTER | 1998 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CARRERA | 1998 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | PORSCHE | 1998 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 | 1997 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA | 1997 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA 4 CABRIOLET | 1997 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA CABRIOLET | 1997 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 TURBO | 1997 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 968 | 1997 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | BOXSTER | 1997 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CARRERA | 1997 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | PORSCHE | 1997 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 | 1996 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA 4 CABRIOLET | 1996 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA CABRIOLET | 1996 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CARRERA | 1996 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | PORSCHE | 1996 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | TARGA | 1996 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 | 1995 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA 4 CABRIOLET | 1995 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 CARRERA CABRIOLET | 1995 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 968 | 1995 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | CARRERA | 1995 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | PORSCHE | 1995 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 911 | 1994 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | 968 | 1994 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
| PORSCHE | PORSCHE | 1994 | 136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING |
Related PORSCHE Recalls
What Should You Do?
If your vehicle is affected by this TSB, contact your authorized PORSCHE dealer. Bring this bulletin ID (D77) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.
Frequently Asked Questions
A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.
If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.
Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.
This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.