GMC Sierra 2500HD OBD-II support
Model years 2001 to 2026CombustionOnboarded
38,442 miles driven with Pelican by 19 drivers
61,866 kilometers driven with Pelican by 19 drivers
The OBDb lists 182 parameters for the GMC Sierra 2500HD, read from 8 control modules. Real responses from GMC Sierra 2500HD cars confirm 63 of the parameters. Drivers have tested model years 2024 to 2025.
Support by model year
A solid mark means a real response confirmed the parameter. A light mark means the car's signalset reads it but no response has confirmed it yet.
Parameters
The parameters of the GMC Sierra 2500HD, by group. These are the commands that GMC added, and the SAE J1979 standard parameters that real cars confirm. Open a group to see its parameters, how Pelican decodes each one, and the model years that real cars confirm.
- Connectables27
- Battery7
- Climate1
- Clocks1
- Control1
- DTCs51
- Engine118
- Fuel25
- Movement6
- OBD1
- Orientation2
- Tires18
- Transmission11
- Trips4
Connectables27
Absolute load value, Air flow rate from mass air flow sensor, Calculated engine load, Calculated engine oil temperature and 23 more14 of 27 parameters confirmed13 being tested14/27Battery7
Battery voltage, Charge air cooler temperature sensor 1, Charge air cooler temperature sensor 1, Charge air cooler temperature sensor 2 and 3 more3 of 7 parameters confirmed4 being tested3/7Climate1
Ambient air temperatureConfirmed1/1Clocks1
Time since engine start1 being tested0/1Control1
Steering wheel angleConfirmed1/1DTCs5
Distance traveled since diagnostic trouble codes cleared, Distance traveled while MIL was activated, Malfunction indicator lamp, Number of DTCs stored in this ECU and 1 moreAll parameters confirmed5/5DTCs › Status30
A/C system refrigerant monitoring, A/C system refrigerant monitoring completed, A/C system refrigerant monitoring ready, Catalyst monitoring and 26 moreAll parameters confirmed30/30DTCs › Support16
A/C system refrigerant monitoring supported, Catalyst monitoring supported, Comprehensive component monitoring enabled, Comprehensive component monitoring supported and 12 moreAll parameters confirmed16/16Engine118
1-2 shift error, 1-2 shift time, 2-3 shift error, 2-3 shift time and 114 more41 of 118 parameters confirmed77 being tested41/118Fuel25
Engine fuel rate, Ethanol content of fuel, Fuel consumption rate, Fuel consumption rate and 21 more12 of 25 parameters confirmed13 being tested12/25Movement6
Desired idle speed, Torque converter clutch slip speed, Torque converter clutch slip speed, Torque converter clutch slip speed and 2 more2 of 6 parameters confirmed4 being tested2/6OBD1
OBD requirements to which vehicle is designedConfirmed1/1Orientation2
Lateral acceleration, Longitudinal accelerationAll parameters confirmed2/2Tires18
Front left tire pressure, Front left tire sensor ID, Front left wheel speed, Front right tire pressure and 14 more6 of 18 parameters confirmed12 being tested6/18Transmission11
Clutch slip, AT C1, ring, Clutch slip, AT C3, ring, Current gear, Current gear and 7 more3 of 11 parameters confirmed8 being tested3/11Trips4
Diesel particulate filter, average distance between regeneration events, Diesel particulate filter, distance since last regeneration, Odometer, OdometerAll parameters confirmed4/4
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