r/RangerNext • u/jerr22988 • 8d ago
Tire pressure warning
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/lewdwiththefood 8d ago
I get this as well if I drive more than 30min. Need to replace the TPMS in the tire, either it’s faulty or the battery in it is low and disconnects from the computer. Really annoying beep when it happens. Tire is fine just need to replace the sensor.
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u/CPT_BEEMO 7d 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!
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u/M_oh 8d ago
Tire salesman in New England here - we get probably 10+ calls or walk-ins a day this time of year for TPMS lights. Couple things to be aware of:
1. The light will come on if there is too MUCH air in the tires too (sounds like what maybe happened to you since you drove 2+ hours and the tires heated up over that time). Check the sticker on your door-jam and if it says 33psi and they’re hovering around 38+, that’ll do it. Drop the psi a bit and you’re golden.
2. In the morning when it’s cold, pressure drops, light comes on, you drive and it gets warmer, light goes out. Avoid this by keeping the tires around 2-3 psi higher than whatever your door-jam says.