How much air pressure should be in 16-inch tires on a Chevy Impala?

Answer

decal in the driver door jamb will have the the recommended air pressures

NOT IN DOOR JAMB ON W CAR IT'S UNDER DECK LID. SHOULD BE 30 PSI.

should not always be 30 psi, i have 14 in tires that take 60 psi. most this size take between 30 and 44 though. the tire itself will tell you. it will say (_ max psi) on the outside of the tire around where the white wall would be.