2006 GMT360 (Envoy), not originally equipped with TPMS. LGM has been SPS'd with the VIN from another truck with TPMS, and all sensors learn and report correct pressures. However... every tire has a 'LOW' message and the light is on, even up to 38 PSI.
So I go to SI and it sez:
And here I hit the brick wall as I have no 'Suspension' selection in any menu anywhere.Tire Type/Pressure Selection
Since there are many different tire types and tire pressure combinations for different vehicles, it is necessary to select the correct tire type and front and rear tire pressures for the vehicle being serviced.
1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. With the scan tool select Suspension.
Is this a BCM programming issue (need to use a VIN equipped with TPMS) or a scantool (VCXnano/Tech2Win) issue or a SI issue (wrong instructions for this platform)?
Is the Suspension supposed to be on the first main screen, with Powertrain/Body/Chassis?