Transmission parameters
The Chevrolet Silverado 1500 has 4 transmission parameters.
● Confirmed◆ In testing○ Supported× Not supported
Current gear SILVERADO1500_CURRENT_GEARConfirmed
- Request
22 1B 30 - Service 22
DID 1B30 - Module
DA18 → 2AF118 - Every
1 s - Testing for 1999 to 2021
Example reply from a 2026 Chevrolet Silverado 1500.
Bits 0 to 7 of the reply, 8 bits.
0x02 = 2 → (2 − 3) = -1
- Formula
(val − 3)- Range
- -3 to 252
- Unit
- Number
Confirmed for 2022 to 2026. In testing for 1999 to 2007, 2009, 2011, 2013 to 2014. Not supported for 2008, 2010, 2012, 2015 to 2021.
Current gear SILVERADO1500_CURRENT_GEAR_VAR_2Confirmed
- Request
22 19 9A - Service 22
DID 199A - Module
7E2 → 7EA - Every
250 ms - Testing for 1999 to 2009, 2011 to 2019, 2021, 2023 to 2026
Example reply from a 2022 Chevrolet Silverado 1500.
Bits 0 to 7 of the reply, 8 bits.
0x01 = 1 → 1
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2010, 2020, 2022. In testing for 1999 to 2009, 2011 to 2014, 2016 to 2019, 2021, 2023 to 2026. Not supported for 2015.
Transmission fluid temperature SILVERADO1500_TFTConfirmed
Pelican can show this parameter as the transmission fluid temperature.
- Request
22 19 40 - Service 22
DID 1940 - Module
DA18 → 2AF118 - Every
1 s - Testing for 1999 to 2021
Example reply from a 2026 Chevrolet Silverado 1500.
Bits 0 to 7 of the reply, 8 bits.
0x31 = 49 → (49 − 40) = 9 °C
- Formula
(val − 40)- Range
- -40 to 215 °C
- Unit
- °C
Confirmed for 2022 to 2026. In testing for 1999 to 2007, 2009, 2011, 2013 to 2014. Not supported for 2008, 2010, 2012, 2015 to 2021.
Transmission fluid temperature, filtered SILVERADO1500_TF_T_FLTEDConfirmed
- Request
22 29 5A - Service 22
DID 295A - Module
DA18 → 2AF118 - Every
1 s - Testing for 1999 to 2021
Example reply from a 2026 Chevrolet Silverado 1500.
Bits 0 to 7 of the reply, 8 bits.
0x39 = 57 → (57 − 40) = 17 °C
- Formula
(val − 40)- Range
- -40 to 215 °C
- Unit
- °C
Confirmed for 2022 to 2026. In testing for 1999 to 2007, 2009, 2011, 2013 to 2014. Not supported for 2008, 2010, 2012, 2015 to 2021.