After Changing The Wheels, Low Tire Pressure Warning Light On

[babyduke]

Last night, I changed to winter wheels and drove today with no problem. Just now one the way home, the low tire pressure warning light blinked for a minute and remained on. I checked the tire pressure and all 4 tires are even at 35psi. What can be wrong here? I tightened all wheels properly at 76 ft/lb using a torque wrench.

[LexBob2]

If you have a full size spare, you should check the pressure in that one too.

[babyduke]

no I have to program the 2nd set ot tpms. but how do i do it w/o going to the dealer?