Well, 34 psi is setting his TPMS off whenever the temperature drops below 50 F. The tires are new (maybe 20k miles?... I'll have to check to confirm), but the car is a 2011 with factory stock tires. I'm probably going to pump them up to about 40 psi when I get back from work tomorrow. The temperatures look like they will start to rise again, so that should give him some room to play with the tire pressure.
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