You can usually drive to a safe location or service center, but you should not ignore a TPMS fault. It means the Tire Pressure Monitoring System isn’t communicating correctly, so you could lose awareness of an underinflated tire on the road.
What TPMS is and what a fault means
The tire pressure monitoring system uses sensors in each wheel to report tire pressure to the vehicle’s computer. A fault warning means the system isn’t communicating properly, and the dashboard indicator may stay on, flash, or show a fault symbol instead of the usual pressure readouts. In Ford vehicles, causes can include a dead sensor battery, a damaged wheel sensor or wiring, or a faulty TPMS control module.
- A failed wheel sensor, depleted sensor battery, or damaged valve stem is a common cause of a TPMS fault.
- Other possible issues include wiring problems, a faulty TPMS control module, or a calibration/relearn need after tire service.
- When a fault is detected, the system may stop actively monitoring tire pressures and rely on manual checks until repaired.
- The dashboard may display a message such as “TPMS Fault” or “TPMS Malfunction.”
Understanding whether a real tire pressure issue exists or the fault is purely in the monitoring system helps determine how urgently you should seek service.
Driving with a TPMS fault
With a TPMS fault, you can still drive, but you should proceed with caution and avoid unnecessary trips until the system is repaired.
- Manually check the air pressure in all four tires (and the spare if you carry one) with a reliable gauge.
- Inflate each tire to the vehicle’s recommended pressure listed on the door placard or in the owner’s manual.
- Inspect tires for visible issues such as damage, punctures, bulges, or excessive wear.
- Drive at moderate speeds and avoid long highway journeys if you’re unsure about tire safety.
- If any tire cannot be inflated to spec or shows a leak, stop and arrange service or roadside assistance.
- Plan to have the TPMS diagnosed and repaired at the earliest convenient opportunity to restore automatic tire warnings.
Because the TPMS won’t reliably warn you about low pressure, addressing the fault promptly with a professional diagnosis is advisable.
What to expect at the shop
At a repair facility, technicians will diagnose the fault using Ford-compatible tools to read TPMS codes and verify sensor status.
- Inspect all wheel sensors, wiring, and the sensor batteries to identify the faulty component.
- Replace a defective sensor, damaged valve stem, or other faulty hardware as needed.
- Perform a TPMS relearn/reset so the vehicle’s computer recognizes any new sensors; some procedures require driving a short distance or using a scan tool at the shop.
- Check for software updates or calibration requirements that might be needed for your specific model year.
- Verify that the warning light stays off after the repair and that the system monitors tire pressures correctly.
After service, the TPMS should function normally again, and you’ll regain automatic alerts for underinflated tires. Keep your service receipt for future maintenance planning.
Ford-specific notes
Ford vehicles follow the general TPMS framework, but model year and trim can affect the relearn procedure and how the system reports faults.
- Many Ford models require a TPMS relearn with a scan tool after sensor replacement; some may relearn automatically after driving at moderate speed for a short distance.
- Spare tires on Ford vehicles often do not have TPMS sensors, so a fault typically relates to the main four wheels—not the spare.
- If you recently rotated tires or replaced sensors, a relearn or software check by a dealer or qualified shop is commonly needed.
Consult your owner's manual or a Ford dealer for model-specific instructions and the exact relearn procedure for your vehicle year and trim.
Summary
A TPMS fault on a Ford indicates the tire-pressure monitoring system isn’t communicating correctly. You can drive to a safe location, but you should manually verify tire pressures and arrange prompt diagnosis and repair. Typical fixes include sensor or valve replacement and a TPMS relearn. After service, the system should once again warn you about underinflated tires, helping keep you safe on the road.