Yes, they can
Check door jambs or fuel filler door should be a label
It depends on the tire manufacterer. The correct pressure will be imprinted on the tire itself. The factory tires will be listed on the drivers door jamb.
what is the correct tire pressure on a 2002 vw passat
It will be written in small print on the side of the tire. It will also be written on a label in one of the door jambs. Go with the label. The pressure written on the side of the tire is the maximum tire pressure the tire will safely hold and is not the pressure you should inflate the tires to. The correct pressure is written on the driver's door post as stated above.
The maximum tire pressure is printed on the tire. Try looking in the car's manual for the correct pressure.
It should turn off automatically after you put in the correct tire pressure. I just did this the other day.
35 psi on the original or reccommended tires
I would check your owner's manual for the Correct Tire inflation used for your vehicle. Many people make the mistake of using the tire pressure on the side of the tire as the correct inflation pressure, which IS NOT the correct one. That is just the max. inflation pressure for the load carrying limit for that specific tire as marked on the tire itself. If your tire pressure is reading correct then, I would take it to the dealer, could be a faulty sensor. Good Luck.
There should be a sticker in the glove box telling the correct tire pressure.If not,the correct tire pressure with be on the tire itself telling the pressure for that specific tire