Porsche Cayenne 2018–2023 — technical service bulletin
Bulletin No. 173-21-2 · NHTSA communication 10229632 · issued Dec 19, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2018–2023
model years
26
vehicle entries
Official summary
Technical information for a Warning Message "Coolant Temperature Too High": Checking Coolant Pump and Change-Over Valve
Vehicles covered
- 2019 Porsche Cayenne
- 2020 Porsche Cayenne
- 2021 Porsche Cayenne
- 2022 Porsche Cayenne
- 2023 Porsche Cayenne
- 2019 Porsche Cayenne S
- 2020 Porsche Cayenne S
- 2021 Porsche Cayenne S
- 2022 Porsche Cayenne S
- 2023 Porsche Cayenne S
- 2018 Porsche Macan
- 2019 Porsche Macan
- 2020 Porsche Macan
- 2021 Porsche Macan
- 2022 Porsche Macan
- 2023 Porsche Macan
- 2018 Porsche Macan GTS
- 2019 Porsche Macan GTS
- 2020 Porsche Macan GTS
- 2021 Porsche Macan GTS
- 2022 Porsche Macan GTS
- 2023 Porsche Macan GTS
- 2018 Porsche Macan Turbo
- 2020 Porsche Macan Turbo
- 2021 Porsche Macan Turbo
- 2022 Porsche Macan Turbo
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.