Trip parameters
The GMC Terrain has 4 trip parameters.
● Confirmed◆ In testing○ Supported× Not supported
Diesel particulate filter, average distance between regenerations GMC_DPF_AVG_DIST_BETWEEN_REGENSConfirmed
- Request
22 20 F7 - Service 22
DID 20F7 - Module
DA11 → 2AF111 - Every
1 s - Testing
Example reply from a 2026 GMC Terrain.
Bits 0 to 15 of the reply, 16 bits.
0x0000 = 0 → 0 km
- Formula
val- Range
- 0 to 65535 km
- Unit
- km
Confirmed for 2026. In testing for 2010 to 2012, 2014 to 2025. Not supported for 2013.
Diesel particulate filter, distance since last regeneration GMC_DPF_DIST_SINCE_LAST_REGENConfirmed
- Request
22 30 39 - Service 22
DID 3039 - Module
DA11 → 2AF111 - Every
1 s - Testing
Example reply from a 2026 GMC Terrain.
Bits 0 to 15 of the reply, 16 bits.
0x0000 = 0 → 0 km
- Formula
val- Range
- 0 to 65535 km
- Unit
- km
Confirmed for 2026. In testing for 2010 to 2012, 2014 to 2025. Not supported for 2013.
Odometer GMC_ODO
Pelican can show this parameter as the odometer.
- Request
22 44 8F - Service 22
DID 448F - Module
DA1A → 2AF11A - Every
30 s - Testing
Bits 0 to 31 of the reply, 32 bits.
- Formula
(val × 156.25 ÷ 10000)- Range
- 0 to 1000000 km
- Unit
- km
In testing for 2010, 2012, 2014 to 2019, 2021 to 2025. Not supported for 2011, 2013, 2020, 2026.
Odometer GMC_ODO_V2
u32/64 km. Verified against the dash to the mile (2,031,186/64 = 31,737 km = 19,720 mi). 22415B returns the same register.
Pelican can show this parameter as the odometer.
- Request
22 44 8F - Service 22
DID 448F - Module
DA40 → 40 - Every
30 s - Testing
Bits 0 to 31 of the reply, 32 bits.
- Formula
(val ÷ 64)- Range
- 0 to 671088 km
- Unit
- km
In testing for 2010 to 2026.
