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Why does the TPMS light come on and how to reset it

Model: GMC Sierra MK 5 - Years 2019-2026
Part:

In this video we see why the TPMS light comes on, which is a safety system that detects incorrect tire pressure in one or more tires: the causes can be low pressure in one or more tires; thermal fluctuations, in fact on cold mornings this light can come on for no other reason; slow and gradual leaks; never correct pressure because the tires have not been checked in a long time. Of course, we cannot exclude a system failure as well. When the light comes on, we check the tires and check the pressure, referring to the label located on the driver's side door pillar; if necessary, we inflate the tires to that value and drive for a few kilometers until the light goes off. If it does not reset with this system, we look in the owner's manual for the manual system of our car, or we use an OBD2 tool.

Posted on 26 August 2025 by ScegliAuto

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by ScegliAuto

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