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Tpms for rear wheel showing seven pounds

2K views 12 replies 7 participants last post by  TerrBear 
#1 ·
I was driving yesterday and received a warning about low tire pressure. I clicked the DIC, and it said left rear tire had seven pounds. The car was riding normal, and I was only a few minutes from the house, so I kept going. When I got home, I expected to see the tire almost flat, but it was fine. Is the tpms sensor broken? Is it covered under the pre-owned warranty?
 
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