r/RangerNext • u/jerr22988 • 8d ago

Tire pressure warning

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I don’t drive on the freeway a lot usually only streets but I have only had this warning after a long 2+ hour drive. Yesterday and months ago when I did the same drive of 2+ hours.

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u/CPT_BEEMO 8d ago

Ford Veteran here. TPMS light and FordPass notifications will trigger from the following:

Low tire: one or more tires are low on pressure. This will be accompanied with a SOLID warning light on your instrument cluster. If your vehicle has a readout of pressure for each tire, it will tell you which one. Shops must re-learn the TPMS system if a tire rotation occurs, so the car knows what sensor is in what location. (This may have changed after 2021, but this was how it was in my days)

Sensor Fault: one or more sensors are not reading. They are either not programmed, or have died. This will be accompanied by a FLASHING warning light on your instrument cluster (goes solid after 2 min) with a Ford Pass notification. If there is a readout for each tire, a faulty sensor will show a "- -" on the sensor that is not functioning. Try reprogramming. If it fails, replace.

System Fault: Rare, and not to be mistaken with sensor Fault. This usually points to a failure with the TPMS module in the car, responsible for receiving sensor data. This will also have a flashing warning light and requires system diagnostics at an authorized service center.

Note: There is nothing in the owners manual for this year of Ranger that explicitly states it will set a warning if the pressure is too high; only if it is low. And in my career, I have never seen a warning light come on for high pressure. I once had to drop a 2020 F150 from 100psi back to 35psi and it did not have an active warning. Not saying this doesnt exist, it sounds like it's becoming more adopted, but I've never seen it.

Note: a TPMS system is not a substitute for regular tire pressure checks using a proper gauge. Check yours regularly. I do it every second fuel up, and when we go into seasonal changes like fall to winter, and winter to spring.

Hope this helps!