# Service bulletin No. 1801.4

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: 10209901
- Published by NHTSA: 2022\-04\-05
- Manufacturer's number: No. 1801.4
- Manufacturer's date: 2022\-03\-30
- NHTSA component: SERVICE BRAKES

## NHTSA's summary

Advanced technical information for a brake squeal.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10209901-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10209901-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Brakes

## Vehicles listed

- 2017 PORSCHE 718
- 2016 PORSCHE 718 BOXSTER
- 2017 to 2020 PORSCHE 718 BOXSTER
- 2016 PORSCHE 718 CAYMAN
- 2017 to 2022 PORSCHE 718 CAYMAN
- 2019 PORSCHE 718 SPYDER
- 2020 PORSCHE 718 SPYDER
- 2021 PORSCHE 718 SPYDER
- 2022 PORSCHE 718 SPYDER
- 1966 to 1967 PORSCHE 911
- 1969 to 1970 PORSCHE 911
- 1972 to 1979 PORSCHE 911
- 1983 to 1984 PORSCHE 911
- 1987 to 2005 PORSCHE 911
- 2012 to 2022 PORSCHE 911
- 2005 to 2011 PORSCHE 911 \(997\)
- 1997 to 2017 PORSCHE 911 CARRERA
- 2020 to 2022 PORSCHE 911 CARRERA
- 2009 PORSCHE 911 CARRERA 4
- 2012 to 2013 PORSCHE 911 CARRERA 4
- 1995 to 1998 PORSCHE 911 CARRERA 4 CABRIOLET
- 2003 PORSCHE 911 CARRERA 4 CABRIOLET
- 2012 PORSCHE 911 CARRERA 4 GTS
- 2003 PORSCHE 911 CARRERA 4S
- 2009 PORSCHE 911 CARRERA 4S
- 2012 PORSCHE 911 CARRERA 4S
- 1995 to 1998 PORSCHE 911 CARRERA CABRIOLET
- 2003 PORSCHE 911 CARRERA CABRIOLET
- 2012 PORSCHE 911 CARRERA GTS
- 2005 to 2021 PORSCHE 911 CARRERA S
- 2005 to 2006 PORSCHE 911 CARRERA S CABRIOLET
- 2003 to 2013 PORSCHE 911 GT2
- 2019 PORSCHE 911 GT2
- 2010 to 2011 PORSCHE 911 GT2 RS
- 2018 to 2019 PORSCHE 911 GT2 RS
- 2003 to 2016 PORSCHE 911 GT3
- 2018 to 2019 PORSCHE 911 GT3
- 2021 to 2022 PORSCHE 911 GT3
- 2008 PORSCHE 911 GT3 RS
- 2010 to 2011 PORSCHE 911 GT3 RS
- 2016 PORSCHE 911 GT3 RS
- 2019 PORSCHE 911 GT3 RS
- 2016 PORSCHE 911 R
- 2011 PORSCHE 911 SPEEDSTER
- 2003 PORSCHE 911 TARGA
- 2009 PORSCHE 911 TARGA 4
- 2012 to 2021 PORSCHE 911 TARGA 4
- 2009 PORSCHE 911 TARGA 4S
- 2012 PORSCHE 911 TARGA 4S
- 1997 PORSCHE 911 TURBO
- 2001 to 2021 PORSCHE 911 TURBO
- 2005 PORSCHE 911 TURBO S
- 2010 to 2012 PORSCHE 911 TURBO S
- 1972 PORSCHE 911E
- 1974 PORSCHE 911S
- 1974 to 1975 PORSCHE 911SC
- 2000 PORSCHE 911SC
- 1972 PORSCHE 911T
- 1969 PORSCHE 912
- 1976 PORSCHE 912E
- PORSCHE 914
- 1970 to 1976 PORSCHE 914
- 2015 PORSCHE 918
- 2015 PORSCHE 918 SPYDER
- 2016 PORSCHE 918 SPYDER
- PORSCHE 924
- 1977 PORSCHE 924
- 1979 to 1980 PORSCHE 924
- 1982 PORSCHE 924
- 1987 to 1988 PORSCHE 924
- PORSCHE 928
- 1978 to 1980 PORSCHE 928
- 1981 to 1982 PORSCHE 928
- 1984 PORSCHE 928
- 1985 to 1988 PORSCHE 928
- 1989 to 1994 PORSCHE 928
- 1995 PORSCHE 928
- 1978 PORSCHE 930
- 1983 to 1991 PORSCHE 944
- 1992 to 1993 PORSCHE 944
- 1986 to 1988 PORSCHE 944 TURBO
- 1987 to 1988 PORSCHE 944S
- 1991 PORSCHE 968
- 1992 to 1994 PORSCHE 968
- 1995 PORSCHE 968
- 1997 PORSCHE 968
- 2001 PORSCHE 968
- 2009 PORSCHE 987 CAYMAN
- 2002 PORSCHE 996 TURBO
- 2008 PORSCHE 997 \(911\)
- 1996 PORSCHE BOXSTER
- 1997 to 2006 PORSCHE BOXSTER
- 2012 to 2015 PORSCHE BOXSTER
- 2005 to 2011 PORSCHE BOXSTER \(987\)
- 2000 to 2003 PORSCHE BOXSTER S
- 2005 PORSCHE BOXSTER S
- 2011 to 2014 PORSCHE BOXSTER S
- 2012 PORSCHE BOXSTER SPYDER
- 1990 PORSCHE CABRIO
- 1999 PORSCHE CABRIOLET
- PORSCHE CARRERA
- 1974 PORSCHE CARRERA
- 1987 to 1993 PORSCHE CARRERA
- 1995 to 1999 PORSCHE CARRERA
- 2001 PORSCHE CARRERA
- 1990 PORSCHE CARRERA 2
- 1989 to 1990 PORSCHE CARRERA 4
- 2004 to 2005 PORSCHE CARRERA GT
- 2006 PORSCHE CARRERRA GT
- 2003 to 2022 PORSCHE CAYENNE
- 2011 PORSCHE CAYENNE \(E2\)
- 2019 to 2022 PORSCHE CAYENNE E\-HYBRID
- 2020 to 2021 PORSCHE CAYENNE GT
- 2006 to 2009 PORSCHE CAYENNE GTS
- 2021 PORSCHE CAYENNE GTS
- 2003 to 2008 PORSCHE CAYENNE S
- 2011 to 2012 PORSCHE CAYENNE S
- 2019 to 2021 PORSCHE CAYENNE S
- 2015 to 2018 PORSCHE CAYENNE S E\-HYBRID
- 2020 PORSCHE CAYENNE S E\-HYBRID
- 2011 to 2013 PORSCHE CAYENNE S HYBRID
- 2003 to 2009 PORSCHE CAYENNE TURBO
- 2011 to 2012 PORSCHE CAYENNE TURBO
- 2019 to 2020 PORSCHE CAYENNE TURBO
- 2020 PORSCHE CAYENNE TURBO COUPE
- 2006 to 2008 PORSCHE CAYENNE TURBO S
- 2020 to 2021 PORSCHE CAYENNE TURBO S E\-HYBRID
- 2020 PORSCHE CAYENNE TURBO S HYB COUPE
- 2005 PORSCHE CAYMAN
- 2006 to 2015 PORSCHE CAYMAN
- 2020 PORSCHE CAYMAN
- 2020 PORSCHE CAYMAN GT4
- 2012 PORSCHE CAYMAN R
- 2005 PORSCHE CAYMAN S
- 2006 PORSCHE CAYMAN S
- 2012 PORSCHE CAYMAN S
- 1990 PORSCHE COUPE
- 2002 PORSCHE GT2
- 2014 PORSCHE MACAN
- 2015 to 2022 PORSCHE MACAN
- 2017 to 2021 PORSCHE MACAN GTS
- 2015 to 2020 PORSCHE MACAN S
- 2015 to 2018 PORSCHE MACAN TURBO
- 2010 to 2022 PORSCHE PANAMERA
- 2011 to 2021 PORSCHE PANAMERA 4
- 2017 to 2021 PORSCHE PANAMERA 4 E\-HYBRID
- 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
- 2010 to 2021 PORSCHE PANAMERA 4S
- 2019 to 2021 PORSCHE PANAMERA 4S E\-HYBRID
- 2017 to 2018 PORSCHE PANAMERA 4S EXECUTIVE
- 2018 PORSCHE PANAMERA 4S SPORT TURISMO
- 2022 PORSCHE PANAMERA E\-HYBRID
- 2010 to 2016 PORSCHE PANAMERA GTS
- 2021 PORSCHE PANAMERA GTS
- 2010 to 2016 PORSCHE PANAMERA S
- 2011 to 2016 PORSCHE PANAMERA S E\-HYBRID
- 2010 to 2018 PORSCHE PANAMERA TURBO
- 2017 to 2018 PORSCHE PANAMERA TURBO EXECUTIVE
- 2012 to 2016 PORSCHE PANAMERA TURBO S
- 2021 PORSCHE PANAMERA TURBO S
- 2017 to 2021 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
- PORSCHE PORSCHE
- 1989 to 1991 PORSCHE PORSCHE
- 1993 PORSCHE PORSCHE
- 1990 PORSCHE TARGA
- 1996 PORSCHE TARGA
- 2020 to 2022 PORSCHE TAYCAN
- 2020 to 2022 PORSCHE TAYCAN 4S
- 2020 to 2022 PORSCHE TAYCAN CROSS TURISMO

## Recalls for the same vehicles and component

- [21V697000](/recalls/nhtsa/21V697000.md), 2021-09-08: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS; SERVICE BRAKES, HYDRAULIC:CRITICAL FASTENERS
- [19V735000](/recalls/nhtsa/19V735000.md), 2019-10-16: SERVICE BRAKES; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [2019078](/recalls/tc/2019078.md), 2019-02-20: Brakes
- [19V115000](/recalls/nhtsa/19V115000.md), 2019-02-20: SERVICE BRAKES; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [2016131](/recalls/tc/2016131.md), 2016-03-23: Brakes
- [16V169000](/recalls/nhtsa/16V169000.md), 2016-03-23: SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES
- [1994005](/recalls/tc/1994005.md), 1994-01-13: Brakes
- [93V205000](/recalls/nhtsa/93V205000.md), 1993-12-07: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM:HOSES, LINES/PIPING, AND FITTINGS
- [82V049000](/recalls/nhtsa/82V049000.md), 1982-05-12: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS

## Other bulletins for the same vehicles and component

- [GR13D800](/bulletins/11035892.md), 2026-08-05, Service bulletin: SERVICE BRAKES. Parts Withdrawal \- 1 Set of Brake Pads for Disk Brake
- [GR13D798](/bulletins/11035890.md), 2026-08-05, Service bulletin: SERVICE BRAKES. Parts Withdrawal \- Brake Disc
- [No. 2210.3](/bulletins/11033623.md), 2026-06-05, Service bulletin: SERVICE BRAKES; ELECTRICAL SYSTEM. Instructions on advanced technical information for 9YA – Electric Parking Brake Warning in the Instrument Cluster
- [No. D752](/bulletins/11028352.md), 2026-02-05, Service bulletin: SERVICE BRAKES. Parts information for parts withdrawal involving the caliper without brake pads. The part numbers affected are in the attached PDF. The vehicles associated are cars that use the part numbers in the PDF.
- [No. 211\-23](/bulletins/11027029.md), 2026-01-06, Service bulletin: SERVICE BRAKES; ELECTRICAL SYSTEM. Symptom based workshop manual for a Brake Symptom \- Yellow Warning Message “PSM Failure” in the Instrument Cluster: Checking Hydraulic Unit and Re\-Program PSM Control Unit
- [No. 2530](/bulletins/11026378.md), 2025-12-05, Service bulletin: SERVICE BRAKES. Instructions on advanced technical information for Y1A, 971, 9YB, 9YA – Brake Noise \& Long Brake Pedal
- [No. D749](/bulletins/11026376.md), 2025-12-05, Service bulletin: SERVICE BRAKES. Parts information for parts withdrawal involving the brake disc 9Y0615301AJ
- [No. 31\-25](/bulletins/11021353.md), 2025-08-04, Service bulletin: SERVICE BRAKES. Technical information for a complaint Maneuvering Assistant: Implausible Standstill When Reversing
- [D719](/bulletins/11018757.md), 2025-06-02, Service bulletin: SERVICE BRAKES. Parts information for Parts Withdrawal \- 1 Set of Brake Pads for Disk Brake. Vehicles included are all cars that use part number 992698451R
- [No. 214\-21](/bulletins/11006852.md), 2024-09-04, Service bulletin: SERVICE BRAKES. Technical information on a complaint \- brake rubbing/floating pedal pressure point/high wear on brake pads and discs/lateral runout of brake disc. replacing brake pads with race track pads

JSON: [/v1/bulletins/10209901](/v1/bulletins/10209901)

[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.%201801.4&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10209901&vehicle=Service%20bulletin%20No.%201801.4)