low tire light stays on dash with all tires reading35 psi

[Guest]

My daughters 2008 Mercury Grand marques has a low tire light that flashes for several seconds then glows steady after going a few miles. All tires have35 psi readings this happened about1,000 miles after we put new tires on.

[carriedi]

you need to have your TPMS sensors checked out. there are tools that can look for the sensors and see what they are sending out for information or if they are dead. You should take your car to a tire shop and have them check your tire monitors. The monitors run on batteries. 2008 means they are probably 13 years old. you might need to replace more than one. maybe all of them...