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Tire pressure check & TPWS system set-up/calibration

7.4K views 14 replies 6 participants last post by  Cruiter  
Don't believe that it is a good idea to set the TPMS warning to be the same as the pressure at which the tires are supposed to be inflated. A few degrees lower in the ambient temperature could cause a, for example, 1 psi reduction in tire pressure and that would trigger the TPMS system annoyingly, especially given day to day ambient temperature variations. Dealer here sets TPMS trigger to occur when a tire pressure falls more than 5 psi below normal inflation pressure.