Porsche Cayenne 2017–2026 — technical service bulletin
Bulletin No. 115-25 · NHTSA communication 11028585 · issued Jan 23, 2026
Technical service bulletin
communication type
Electrical System
component
2017–2026
model years
60
vehicle entries
Official summary
Symptom based workshop manual for Refrigerant Loss – Possible Misdiagnosis due to Fluorescent Corrosion Protection at the Electric Air-Conditioning Compressor
Vehicles covered
- 2017 Porsche Cayenne
- 2018 Porsche Cayenne
- 2019 Porsche Cayenne
- 2020 Porsche Cayenne
- 2021 Porsche Cayenne
- 2022 Porsche Cayenne
- 2023 Porsche Cayenne
- 2024 Porsche Cayenne
- 2025 Porsche Cayenne
- 2026 Porsche Cayenne
- 2024 Porsche Cayenne Coupe
- 2025 Porsche Cayenne Coupe
- 2026 Porsche Cayenne Coupe
- 2019 Porsche Cayenne E-Hybrid
- 2020 Porsche Cayenne E-Hybrid
- 2021 Porsche Cayenne E-Hybrid
- 2022 Porsche Cayenne E-Hybrid
- 2023 Porsche Cayenne E-Hybrid
- 2024 Porsche Cayenne E-Hybrid
- 2025 Porsche Cayenne E-Hybrid
- 2026 Porsche Cayenne E-Hybrid
- 2024 Porsche Cayenne E-Hybrid Coupe
- 2025 Porsche Cayenne E-Hybrid Coupe
- 2026 Porsche Cayenne E-Hybrid Coupe
- 2020 Porsche Cayenne GT
- 2021 Porsche Cayenne GT
- 2022 Porsche Cayenne GT
- 2021 Porsche Cayenne GTS
- 2022 Porsche Cayenne GTS
- 2023 Porsche Cayenne GTS
- 2024 Porsche Cayenne GTS
- 2025 Porsche Cayenne GTS
- 2026 Porsche Cayenne GTS
- 2024 Porsche Cayenne GTS Coupe
- 2025 Porsche Cayenne GTS Coupe
- 2026 Porsche Cayenne GTS Coupe
- 2018 Porsche Cayenne S
- 2019 Porsche Cayenne S
- 2020 Porsche Cayenne S
- 2021 Porsche Cayenne S
- 2022 Porsche Cayenne S
- 2023 Porsche Cayenne S
- 2024 Porsche Cayenne S
- 2024 Porsche Cayenne S Coupe
- 2025 Porsche Cayenne S Coupe
- 2026 Porsche Cayenne S Coupe
- 2017 Porsche Cayenne S E-Hybrid
- 2018 Porsche Cayenne S E-Hybrid
- 2020 Porsche Cayenne S E-Hybrid
- 2018 Porsche Cayenne Turbo
- 2019 Porsche Cayenne Turbo
- 2020 Porsche Cayenne Turbo
- 2023 Porsche Cayenne Turbo
- 2020 Porsche Cayenne Turbo Coupe
- 2024 Porsche Cayenne Turbo E-Hybrid
- 2025 Porsche Cayenne Turbo E-Hybrid
- 2026 Porsche Cayenne Turbo E-Hybrid
- 2024 Porsche Cayenne Turbo E-Hybrid Coupe
- 2025 Porsche Cayenne Turbo E-Hybrid Coupe
- 2026 Porsche Cayenne Turbo E-Hybrid Coupe
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.