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GMC Sierra 1500

Transmission parameters

The GMC Sierra 1500 has 1 transmission parameter.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

Current gear SIERRA1500_CURRENT_GEAR_VAR_2Confirmed

  • Request22 19 9A
  • Service 22DID 199A
  • Module7E2 → 7EA
  • Every250 ms
  • Testing for 1988 to 2020, 2022 to 2026

Example reply from a 2021 GMC Sierra 1500.

Bits 0 to 7 of the reply, 8 bits.

0x01 = 1 → 1

Formula
val
Range
0 to 255
Unit
Number

Confirmed for 2021. In testing for 1988 to 2020, 2022 to 2023, 2026. Not supported for 2024 to 2025.

  1. The parameter's name and its ID in the OBDb. Confirmed shows when a response from a real car confirms the parameter.
  2. The clutch mark shows a Connectable, a parameter that Pelican surfaces in its interface.
  3. The service and PID/DID asked for, the control module it's sent to, and how often Pelican asks.
  4. The reply's bytes. The parameter's bytes are blue. Bytes for other parameters in the same reply are grayed out. Hover over a byte to see the parameter it represents.
  5. Where the parameter is in the response, and how Pelican converts the raw value into a value.
  6. A real reply, decoded. The raw value comes first, then the reading.
  7. Which model years have tested this parameter.

Current gear SIERRA1500_CURRENT_GEAR_VAR_2Confirmed

  • Request22 19 9A
  • Service 22DID 199A
  • Module7E2 → 7EA
  • Every250 ms
  • Testing for 1988 to 2020, 2022 to 2026

Example reply from a 2021 GMC Sierra 1500.

Bits 0 to 7 of the reply, 8 bits.

0x01 = 1 → 1

Formula
val
Range
0 to 255
Unit
Number

Confirmed for 2021. In testing for 1988 to 2020, 2022 to 2023, 2026. Not supported for 2024 to 2025.

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