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Chevrolet Trailblazer

Movement parameters

The Chevrolet Trailblazer has 5 movement parameters.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

Vehicle speed TRAILBLAZER_VSSConfirmed

Pelican can show this parameter as the speed.

  • Request22 00 0D
  • Service 22DID 000D
  • Module7E0 → 7E8
  • Every250 ms
  • Testing for 2026

Example reply from a 2025 Chevrolet Trailblazer.

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 2021 to 2025. In testing for 2026.

  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.

Desired idle speed TRAILBLAZER_DES_IDLE_SPD

  • Request22 11 92
  • Service 22DID 1192
  • Module7E0 → 7E8
  • Every250 ms
  • Testing

Bits 0 to 7 of the reply, 8 bits.

Formula
(val × 12.5)
Range
0 to 3187.5 rpm
Unit
rpm

In testing for 2021 to 2026.

Torque converter clutch slip speed TRAILBLAZER_TC_SLIP_VSS

  • Request22 19 91
  • Service 22DID 1991
  • Module7E2 → 7EA
  • Every250 ms
  • Testing

Bits 0 to 15 of the reply, 16 bits. The value is signed.

Formula
(val × 1250 ÷ 10000)
Range
-4096 to 4095.875 rpm
Unit
rpm

In testing for 2021 to 2026.

Torque converter clutch slip speed TRAILBLAZER_TQ_CONV_CLU_SLIP_SPD

  • Request22 19 91
  • Service 22DID 1991
  • Module7E0 → 7E8
  • Every250 ms
  • Testing

Bits 0 to 15 of the reply, 16 bits. The value is signed.

Formula
(val ÷ 8)
Range
-4096 to 4095.875 rpm
Unit
rpm

In testing for 2021 to 2026.

Vehicle speed TRAILBLAZER_VSSConfirmed

Pelican can show this parameter as the speed.

  • Request22 00 0D
  • Service 22DID 000D
  • Module7E0 → 7E8
  • Every250 ms
  • Testing for 2026

Example reply from a 2025 Chevrolet Trailblazer.

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 2021 to 2025. In testing for 2026.

Vehicle speed VSSSAE J1979Confirmed

Pelican can show this parameter as the speed.

  • Request01 0D
  • Service 01PID 0D
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula
val
Range
0 to 255 km/h
Unit
km/h

Confirmed for 2021 to 2022, 2024 to 2025. Supported for 2008, 2023.

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