Cruise control parameters
The Subaru Ascent has 6 cruise control parameters.
● Confirmed◆ In testing○ Supported× Not supported
Cruise control cancel switch SUBARU_CC_CANCEL_SWITCHConfirmed
- Request
22 12 4A - Service 22
DID 124A - Module
7A2 → 7AA - Every
1 s - Testing
Example reply from a 2025 Subaru Ascent.
Bits 0 to 7 of the reply, 8 bits.
0x00 = 0 → 0
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2023 to 2025. In testing for 2020, 2026. Not supported for 2019, 2021 to 2022.
Cruise control main toggle switch SUBARU_CC_MAIN_TOGGLE_SWITCHConfirmed
- Request
22 12 34 - Service 22
DID 1234 - Module
7A2 → 7AA - Every
1 s - Testing
Example reply from a 2025 Subaru Ascent.
Bits 0 to 7 of the reply, 8 bits.
0x00 = 0 → 0
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2023 to 2025. In testing for 2020, 2026. Not supported for 2019, 2021 to 2022.
Cruise control resume/accelerate switch SUBARU_CC_RESUME_ACCELERATE_SWITCHConfirmed
- Request
22 12 32 - Service 22
DID 1232 - Module
7A2 → 7AA - Every
1 s - Testing
Example reply from a 2025 Subaru Ascent.
Bits 0 to 7 of the reply, 8 bits.
0x00 = 0 → 0
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2023 to 2025. In testing for 2020, 2026. Not supported for 2019, 2021 to 2022.
Cruise control set/coast switch SUBARU_CC_SET_COAST_SWITCHConfirmed
- Request
22 12 31 - Service 22
DID 1231 - Module
7A2 → 7AA - Every
1 s - Testing
Example reply from a 2025 Subaru Ascent.
Bits 0 to 7 of the reply, 8 bits.
0x00 = 0 → 0
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2023 to 2025. In testing for 2020, 2026. Not supported for 2019, 2021 to 2022.
Cruise control speed SUBARU_CC_SPD
- Request
21 21 - Service 21
PID 21 - Module
7E0 → 7E8 - Every
5 s - Testing
Bits 8 to 15 of the reply, 8 bits.
- Formula
val- Range
- 0 to 255 km/h
- Unit
- km/h
In testing for 2019 to 2026.
Cruise speed, set SUBARU_CRUISE_VSS_TConfirmed
- Request
22 10 E3 - Service 22
DID 10E3 - Module
7A2 → 7AA - Every
1 s - Testing
Example reply from a 2025 Subaru Ascent.
Bits 0 to 7 of the reply, 8 bits.
0x00 = 0 → 0 km/h
- Formula
val- Range
- 0 to 255 km/h
- Unit
- km/h
Confirmed for 2023 to 2025. In testing for 2020, 2026. Not supported for 2019, 2021 to 2022.