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Do I need to program Speedo

SDPWRWGN

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if you've got AlfaOBD, it's a 5 minute process (if that) to change the tire size. I've done a few trucks now to change them and they are all back to being dead on again.
Can you change the factory set TPMS alarm/dash light set points with the AlfaOBD? I want to run my power wagon tires around 50/55 and the computer is set to 60/65.
 

skyhawk42

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Can you change the factory set TPMS alarm/dash light set points with the AlfaOBD? I want to run my power wagon tires around 50/55 and the computer is set to 60/65.
To change the tire pressure thresholds, connect to the body computer, go into car configuration change, and find these two:

VehConfig 2: Max Load Inflation Pressure Rear

Tire (0-126PSI) - enter psi value

VehConfig 2: Max Load Inflation Pressure Front

Tire (0-126PSI) - enter psi value
 

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