The tire pressure for 2012 Avalanche pick up is between 35 and 40 psi.
Check to see if there is a label on the door post or check with tire retailer
32psi
30psi
Depending on the make and model, maybe. Some vehicles do have a tire pressure sensor in the spare to monitor its pressure.
The correct pressure is listed in your owners manual and on the drivers door post.
32
Open the drivers door and on the end of the door ( or latch pillar ) you will see an information sticker that shows the size of tire that came on the vehicle from the factory and the cold inflation tire pressure
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Adjust tire pressure to the proper specs on all tires and take it for a short drive. It will reset before you get down the street. If it doesn't reset you have a problem with one of the tire pressure sensors.
It will reset itself in a few miles once you have ample pressure in tire
Low tire pressure or failed tire pressure sensor.Low tire pressure or failed tire pressure sensor.
Open the drivers door and on the end of the door ( or the latch pillar ) you will see an information sticker that shows the tire inflation pressure etcetera