2018 Ford Explorer Tire Pressure – Essential Maintenance And TPMS
Maintaining the correct 2018 ford explorer tire pressure is vital for ensuring your SUV handles safely, achieves maximum fuel efficiency, and prevents premature tread wear. This guide provides the manufacturer-recommended PSI settings for all trims, explains how to use the TPMS system, and offers expert tips for seasonal adjustments.
You probably know that a smooth, controlled ride in your Ford Explorer depends heavily on the cushion of air between your rims and the road. When your tires are underinflated, you sacrifice fuel economy and risk a dangerous blowout on the highway.
If you have seen that annoying horseshoe-shaped light pop up on your dashboard, you are not alone. Getting your 2018 ford explorer tire pressure back to factory specifications is a simple DIY task that saves you money and keeps your family safe during long road trips.
In this guide, we will break down the exact inflation numbers for every trim level, show you how to reset your monitoring system, and share professional secrets for maintaining your tires like a pro. Let us get your Explorer back to peak performance.
Understanding Your 2018 ford explorer tire pressure Requirements
For the 2018 model year, Ford designed the Explorer to run on a specific volume of air to balance comfort and load-carrying capacity. While wheel sizes vary across the Base, XLT, Limited, Sport, and Platinum trims, the standard recommendation remains consistent for most daily driving scenarios.
The vast majority of 2018 Ford Explorers require a cold tire pressure of 35 PSI (pounds per square inch) for all four tires. This applies whether you are running the 18-inch wheels found on the base model or the 20-inch wheels found on the Sport and Platinum editions.
It is important to remember that these numbers are cold inflation pressures. This means you should check the 2018 ford explorer tire pressure after the vehicle has been sitting for at least three hours, or has been driven less than a mile.
Where to Find Your Specific PSI Label
If you are ever in doubt, you do not need to hunt through your glovebox for the owner’s manual. Ford places a Tire and Loading Information placard on the driver-side B-pillar. You can see this sticker clearly when you open the driver’s door.
This placard is the ultimate authority for your specific vehicle. It lists the original tire size and the exact pressure required for the front, rear, and spare tires. Never use the “Max Pressure” number printed on the tire sidewall, as that is the limit the tire can hold, not what the vehicle requires.
The Importance of the Spare Tire
Many owners forget about the “donut” or full-size spare tucked away under the cargo floor. A flat spare is useless in an emergency. Most compact spare tires for this vehicle require a much higher pressure, typically 60 PSI, to function correctly under the weight of the SUV.
How to Accurately Check and Adjust Your Tire Pressure
To get the best results, you should invest in a high-quality digital tire pressure gauge. While the “pencil” style gauges are cheap and portable, they can lose accuracy over time due to internal spring fatigue. A digital gauge provides a clear, backlit reading that is much easier to see in low-light conditions.
Checking the 2018 ford explorer tire pressure when the tires are cold is the only way to ensure an accurate reading. Driving causes friction, which heats the air inside the tire and increases the pressure. If you adjust your tires while they are hot, they will likely be underinflated once they cool down.
Follow these steps for a perfect fill every time:
- Remove the valve stem cap and keep it in a safe place (like your pocket).
- Press the gauge firmly onto the valve stem until the hissing sound stops.
- Read the measurement and compare it to the 35 PSI recommendation.
- Use a portable 12V compressor or a gas station air pump to add air in short bursts.
- Re-check the pressure after each burst to avoid overshooting your target.
Dealing with Overinflation
If you accidentally put too much air in, simply use the small nub on the back of your tire gauge or a small screwdriver to depress the Schrader valve pin. This will release air in a controlled manner. Aim for exactly 35 PSI for the best blend of traction and efficiency.
Resetting the Tire Pressure Monitoring System (TPMS)
The 2018 Ford Explorer is equipped with a sophisticated TPMS that uses sensors inside each wheel to monitor air levels. If the pressure drops about 25% below the recommended level, a warning light will illuminate on your instrument cluster. This is your cue to take action immediately.
In most cases, after you have inflated the tires to the correct levels, the light will turn off on its own after a few minutes of driving at speeds over 20 MPH. However, if you have recently performed a tire rotation, the system might need a manual reset to recognize the new positions of the sensors.
The process for resetting the 2018 ford explorer tire pressure monitor is straightforward. You can usually find the “Tire Pressure” or “Maintenance” sub-menu within the Information Display on your dashboard. Use the steering wheel buttons to navigate to the settings and hold the “OK” button to reset the system.
When the TPMS Light Blinks
If your TPMS light flashes for about a minute and then stays solid, this indicates a fault in the system rather than a low-pressure issue. This usually means a sensor battery has died or a sensor was damaged during a tire change. In this scenario, you will need a professional technician with a TPMS scan tool to diagnose which wheel is failing.
Seasonal Changes and Temperature Fluctuations
Living in a climate with harsh winters or scorching summers means you will be checking your tires more often. For every 10-degree drop in ambient temperature, your tire pressure will drop by approximately 1 PSI. This is why many people see their low tire light come on during the first cold snap of autumn.
During the summer, the opposite happens. High road temperatures can cause the air to expand significantly. If you set your pressure to 35 PSI on a cool morning, it might climb to 39 or 40 PSI during a long highway haul in 100-degree heat. This is normal, but you should still monitor for excessive bulging or a harsh ride.
For those who live in mountainous regions or areas with extreme temperature swings, checking your tires once a month is the gold standard for maintenance. It prevents the “low pressure” light from surprising you during your morning commute.
Towing and Heavy Loads in Your Explorer
The 2018 Ford Explorer is a popular choice for towing small trailers or hauling heavy camping gear. When you fill the vehicle with seven passengers and luggage, the weight distribution changes. While the 35 PSI standard is a “catch-all,” some owners prefer to increase the rear tire pressure slightly when towing.
If you are pulling a trailer near the Explorer’s maximum capacity, you might consider bumping the rear tires up to 38 PSI. This helps reduce sidewall flex and improves stability while cornering. Always refer to your hitch’s weight ratings and never exceed the maximum load capacity listed on your door jamb sticker.
Once you have reached your destination and unloaded the heavy gear, remember to bleed that extra air back down to 35 PSI. Running high pressure on an empty vehicle will cause the center of the tread to wear out faster than the edges, shortening the life of your expensive tires.
Off-Roading and Soft Surfaces
If you are taking your Explorer off the beaten path—perhaps to a sandy beach or a muddy trailhead—you might be tempted to “air down.” Lowering tire pressure increases the contact patch, which provides better flotation on soft surfaces. However, you must be extremely careful when doing this with stock tires.
For light off-roading, you should generally not go below 20 PSI unless you have a way to reinflate them immediately upon returning to the pavement. Driving at highway speeds with low pressure will cause catastrophic heat buildup and destroy the tire’s internal structure in minutes. Always carry a portable air compressor if you plan to venture off-grid.
Common Tire Pressure Problems and Troubleshooting
Even if you are diligent, issues can arise. If you find yourself constantly adding air to one specific tire, you likely have a slow leak. This can be caused by a variety of factors that are often hard to see with the naked eye.
- Nails or Screws: The most common culprit. They often seal the hole they made, resulting in a loss of only 1-2 PSI per week.
- Corroded Rims: In “salt belt” states, corrosion can form where the tire bead meets the metal rim, allowing air to seep out.
- Faulty Valve Cores: Sometimes the tiny valve inside the stem gets grit in it and fails to seal completely. A simple valve core tool can tighten or replace it.
- Temperature Swings: As mentioned, don’t mistake a cold morning for a puncture.
If you suspect a leak, spray some soapy water on the tread and around the valve stem. If you see growing bubbles, you have found your leak. Most punctures in the center “tread zone” can be safely patched by a professional, but damage to the sidewall or the shoulder requires a full tire replacement.
The Impact of Tire Pressure on Fuel Economy and Safety
According to the Department of Energy, underinflated tires can lower your gas mileage by about 0.2% for every 1 PSI drop in the average pressure of all tires. While that sounds small, driving on tires that are 10 PSI low can cost you a significant amount of money over a year of driving.
Beyond the wallet, safety is the primary concern. Underinflated tires have a longer braking distance and poorer steering response. In an emergency swerve, a tire with low pressure can even unseat from the rim, leading to a total loss of control. Keeping your 2018 ford explorer tire pressure at the recommended level is the cheapest insurance policy you can buy.
Frequently Asked Questions About 2018 ford explorer tire pressure
What is the correct tire pressure for a 2018 Ford Explorer with 20-inch wheels?
The recommended pressure for the 20-inch wheels on the 2018 Ford Explorer is 35 PSI. This is the same as the 18-inch wheel recommendation, as Ford tuned the suspension to work with this specific inflation level across the trim lineup.
Can I use the tire pressure listed on the tire itself?
No. The pressure listed on the tire sidewall is the maximum pressure the tire can safely hold at its maximum load. Always use the 35 PSI recommendation found on the driver’s door jamb sticker for daily driving.
Why does my tire pressure light stay on after I fill the tires?
The TPMS often requires a few miles of driving to update the sensors. If the light stays on after 10 miles of driving, you may need to manually reset the system through the dashboard menu or check for a faulty sensor.
Does the 2018 Ford Explorer show individual tire pressures?
Yes, most 2018 Ford Explorer trims allow you to view the real-time pressure of each individual tire through the instrument cluster’s information display. This makes it easy to identify exactly which tire needs attention.
How often should I check my tire pressure?
You should check your tire pressure at least once a month and before any long road trips. It is also wise to check them whenever there is a significant change in the outside temperature.
Final Thoughts for the DIY Owner
Taking care of your 2018 ford explorer tire pressure is a fundamental skill that pays dividends in safety and savings. It only takes five minutes a month to walk around your vehicle with a gauge and ensure everything is up to spec. This simple habit prevents uneven tire wear and keeps your Explorer handling like the day it left the showroom.
Whether you are heading out for a weekend of camping or just navigating the daily school run, properly inflated tires provide the foundation for a successful journey. Grab a reliable gauge, check that door jamb sticker, and keep your tires at 35 PSI.
Stay safe, keep an eye on those gauges, and enjoy the road ahead!
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