2020 Ford Explorer Tire Pressure Sensor Fault – How To Diagnose
A tire pressure sensor fault on your 2020 Ford Explorer indicates a communication failure between the vehicle’s computer and the sensors inside your wheels. Unlike a low-pressure warning, this fault usually requires a system reset or a sensor replacement to ensure your safety on the road. This guide provides the exact steps to troubleshoot the error and restore your monitoring system.
Few things are as annoying as a persistent warning light on your dashboard, especially when your tires look perfectly inflated. If you are dealing with a 2020 ford explorer tire pressure sensor fault, you are likely staring at a message that refuses to go away despite your best efforts at the air pump.
Seeing this specific “Fault” message is different from a standard low-pressure notification. It means the Tire Pressure Monitoring System (TPMS) has detected a hardware or software issue rather than just a lack of air. This can be a major headache for daily commuters and off-roaders alike.
In this guide, we will break down exactly why this happens and how you can fix it yourself. We will cover the tools you need, the “secret” Ford reset procedures, and when it is time to admit defeat and head to a professional shop. Let’s get your Explorer back to its peak performance.
Understanding the 2020 ford explorer tire pressure sensor fault
When your dashboard displays the 2020 ford explorer tire pressure sensor fault, the vehicle is telling you it has lost contact with one or more sensors. The TPMS relies on small, battery-powered radio transmitters mounted inside each wheel to send data to the car’s central computer.
On the 2020 Explorer, this system is quite sophisticated, but it is not immune to glitches. A “fault” message typically triggers a flashing TPMS icon that eventually stays solid. This is the system’s way of saying, “I can no longer monitor your safety, so do not rely on me.”
It is important to distinguish this from the “Low Tire Pressure” light. A low-pressure light means the sensor is working and doing its job. A sensor fault means the system itself is broken. Ignoring this can lead to dangerous situations, as you won’t be alerted if a genuine blowout or slow leak occurs during your drive.
Common Causes of TPMS Failures in Ford Explorers
The 2020 model year is now at an age where hardware failures become more common. While these vehicles are robust, the electronics inside the wheels live in a very harsh environment. They deal with heat, centrifugal force, and moisture constantly.
Dead or Dying Sensor Batteries
Each TPMS sensor contains a small lithium-ion battery that is sealed inside the unit. These batteries generally last between five to ten years. If your Explorer was an early 2020 build, some sensors might be reaching the end of their natural lifespan, causing intermittent signals.
Physical Damage from Road Debris
If you enjoy taking your Explorer off-road or frequently drive on gravel, physical damage is a possibility. A hard hit against a rock or a deep pothole can crack the sensor housing. Even a simple tire change at a shop can lead to a broken sensor if the technician is not careful with the tire iron.
Electromagnetic Interference
Sometimes, the 2020 ford explorer tire pressure sensor fault is caused by external factors. High-powered radio towers, certain aftermarket electronic chargers, or even cheap LED light conversions can interfere with the radio frequency (RF) signals. If the fault only happens in one specific location, interference is the likely culprit.
How to Tell the Difference Between Low Pressure and a Fault
Understanding the dashboard signals is the first step in effective troubleshooting. A standard low-pressure warning usually shows a steady horseshoe-shaped icon with an exclamation point. On the 2020 Explorer, the infotainment screen will often show you exactly which tire is low.
A sensor fault behaves differently. Usually, the light will flash for 60 to 90 seconds every time you start the engine. After that period of flashing, the light will remain solid. This specific flashing sequence is the universal code for a system malfunction rather than a pressure issue.
If you see the “Tire Pressure Sensor Fault” text on your productivity screen, do not bother adding more air yet. Instead, use a high-quality manual pressure gauge to verify all four tires are at the recommended PSI (usually 33-35 PSI for the Explorer). If the pressures are fine, the sensor is definitely the problem.
Step-by-Step Troubleshooting for the DIY Mechanic
Before you spend money on new parts, there are several checks you can perform in your driveway. These steps can save you a trip to the dealership and help you narrow down which wheel is causing the 2020 ford explorer tire pressure sensor fault.
1. Perform a System Reset
Sometimes the computer just needs a “handshake” with the sensors again. You can often clear temporary glitches by performing a TPMS relearn. This involves putting the car into a special mode and “triggering” each sensor in a specific order starting from the driver’s front tire.
2. Check for Recent Electronic Changes
Did you recently plug in a new dashcam or a GPS unit? Unplug all accessories from the 12V ports and USB slots. Drive the vehicle for 20 minutes to see if the fault clears. Interference from unshielded electronics is a surprisingly common cause for Ford sensor issues.
3. Inspect the Valve Stems
Walk around the vehicle and look at the valve stems. If one looks different from the others, or if it appears bent or corroded, that is your primary suspect. Aluminum valve stems are prone to galvanic corrosion, which can eventually damage the internal electronics of the sensor.
The Ford TPMS Relearn Procedure (The “Hidden” Method)
The 2020 Ford Explorer has a specific sequence to enter the TPMS training mode without using a professional scan tool. This is a pro-tip that every Ford owner should know. Follow these steps carefully to see if your sensors are still communicating.
- Ensure all tires are inflated to the correct pressure listed on the door jamb sticker.
- Turn the ignition to the OFF position.
- Press and release the brake pedal once.
- Cycle the ignition from OFF to RUN (do not start the engine) three times, ending in the RUN position.
- Press and release the brake pedal again.
- Turn the ignition to the OFF position.
- Cycle the ignition from OFF to RUN three more times, ending in the RUN position.
If successful, the horn will honk once, and the dash will display “Train Left Front Tire.” At this point, you would typically use a TPMS trigger tool to activate the sensor. If you don’t have a tool, you can sometimes trigger them by letting air out of the tire for 10 seconds, though a tool is much more reliable.
Essential Tools for Fixing a Tire Pressure Sensor Fault
If the reset doesn’t work, you might need to get your hands dirty. Fixing a 2020 ford explorer tire pressure sensor fault requires a few specific items. While you can’t easily change the sensor itself without a tire machine, having these tools helps with the diagnosis.
- TPMS Activation Tool: A basic Ford-specific trigger tool costs about $15-$25 online. It is a must-have for any DIYer who owns a Ford vehicle.
- OBD-II Scanner: A scanner that can read TPMS codes will tell you exactly which sensor is failing (e.g., “C0077” for low pressure or specific “B” codes for sensor failure).
- Digital Pressure Gauge: Accuracy is key. Don’t rely on the cheap “pencil” style gauges when troubleshooting electronic faults.
- Replacement Sensor: If you find a dead sensor, always buy OEM Motorcraft sensors. Aftermarket sensors often have compatibility issues with the 2020 Explorer’s frequency.
When to Call a Professional
While we love a good DIY project, there are limits to what you can do at home. If you have performed the relearn procedure and the system refuses to “see” a specific tire, that sensor is likely dead. Replacing a sensor requires breaking the bead of the tire off the rim.
Unless you have a tire mounting machine and a high-speed balancer in your garage, this is a job for a local tire shop. A technician can swap the sensor in about 15 minutes. It is also wise to seek help if you suspect the TPMS Receiver Module (the part inside the car) has failed, as this requires advanced programming.
Always ask the shop to “clone” your existing sensor ID if possible. This prevents the car from getting confused by a new ID number. If they can’t clone it, ensure they perform the full relearn procedure before you leave the lot to ensure the light stays off.
Frequently Asked Questions About 2020 ford explorer tire pressure sensor fault
Can I drive with a tire pressure sensor fault?
Yes, the vehicle is mechanically safe to drive. However, you will not have an active warning system if a tire actually loses air. You should manually check your tire pressures every time you fuel up until the fault is repaired.
How much does it cost to replace a Ford Explorer TPMS sensor?
Expect to pay between $50 and $100 for the sensor itself, plus $30 to $50 for labor and balancing. Total costs usually land between $80 and $150 per wheel at a non-dealer shop.
Will a TPMS fault fail an emissions or safety inspection?
In most states, a TPMS light will not fail an emissions test. However, in states with strict safety inspections (like Hawaii or certain East Coast states), a malfunctioning safety system can result in a failed inspection. Check your local regulations.
Does cold weather cause a sensor fault?
Cold weather causes air to contract, which triggers a “Low Pressure” light. However, extreme cold can also sap the strength of a weak sensor battery, leading to a “Fault” message that might disappear once the tires warm up during a drive.
Can I disable the TPMS system entirely?
Legally, shops are not allowed to disable TPMS systems due to federal safety regulations. While some enthusiasts use software like FORScan to disable the alerts, it is generally discouraged as it removes a vital safety feature.
Final Thoughts on Resolving Your TPMS Issues
Dealing with a 2020 ford explorer tire pressure sensor fault is a rite of passage for many Ford owners. While it is frustrating to see that warning light, the fix is usually straightforward. By understanding the difference between a simple low-pressure alert and a system fault, you can save yourself time and unnecessary stress.
Start with the basics: check your actual pressures, look for electronic interference, and try the manual relearn sequence. If those steps fail, a new Motorcraft sensor is your best bet for a long-term solution. Maintaining your TPMS ensures that you stay informed and safe, whether you are cruising the highway or exploring a remote trail.
Stay proactive with your vehicle’s health, and don’t let a small sensor ruin your driving experience. Stay safe and keep those tires rolling!
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