Solid vs flashing TPMS Warning Light

A solid TPMS light usually means one or more tires are at least 25% below placard pressure. 

• Check all four tires first. Inflate to the door-jamb spec. Many “sensor” complaints end there.
• A light that flashes for 60–90 seconds, then stays on, is a system fault. A sensor isn’t communicating because of a dead battery, sensor damage, or a missed relearn after rotation or tire work.
• Do not guess. Trigger each sensor with an updated TPMS tool, confirm IDs and battery status, then replace the failed unit. With REDI-Sensor, there is no programming step; just install, scan, and run the OE relearn.
• If the light came on after new tires or a rotation, the relearn is often the only repair needed to solve the issue.

Here are some additional tips to keep in mind when your customer comes in for service:

• Check the Telltale/MIL every time a customer’s vehicle enters your service bay and document the presence of any illuminated or blinking light before performing any work.
• Don’t forget to inspect the spare if it has a TPMS sensor.
• While servicing TPMS, visually inspect stems, hex nut, seal, and cap. Best practice is to replace it with a new service kit.
• Always inform the customer of the benefits of TPMS, even if it doesn't present a sales opportunity.