RV owners spend a lot of time thinking about engines, generators, batteries, holding tanks, appliances, roofs and slides. But there are only a handful of relatively small contact patches connecting thousands of pounds of RV to the highway:
Your tires.
Whether you drive a motorhome or tow a travel trailer or fifth wheel, tire maintenance should be part of your regular RV routine. A tire failure at highway speed can be much more than an inconvenience. It can damage the RV, create a loss-of-control hazard and turn a vacation into a roadside emergency.
The good news is that many tire problems give you warning signs—you just have to know what to look for.
Tire Pressure Is More Important Than Most RV Owners Realize
One of the simplest things you can do for RV tire safety is also one of the most commonly overlooked:
Check your tire pressure before you travel.
Tire pressure affects how the tire carries the RV’s weight, how much heat it generates and how it responds on the road.
An underinflated tire flexes more as it rolls. That additional flex creates heat, and excessive heat can damage the tire internally. Overinflation isn’t the answer either. Your goal is to operate the tire at the appropriate pressure for the load it’s carrying.
The key word is cold tire pressure.
Check your tires before driving, when they haven’t been heated by highway use. Tire pressure naturally increases as tires warm up during travel, so don’t simply release air from a hot tire because the pressure has increased.
Make checking pressure part of your departure routine.
Don’t Guess at the Correct PSI
It’s tempting to look at the maximum pressure molded into the tire’s sidewall and assume that’s automatically what every tire on the RV should be inflated to.
It isn’t that simple.
Your RV manufacturer provides tire/loading information for the vehicle, and tire manufacturers publish load-and-inflation information for their tires. For the best understanding of what your tires are actually carrying, weigh the RV when it’s loaded for travel.
That means fuel, water you’re normally carrying, food, clothing, equipment and all the other things that go along for the trip.
If possible, get individual wheel-position weights. At minimum, know the actual loaded axle weights.
Once you know the load, you can compare it with the tire manufacturer’s load-and-inflation tables and the RV manufacturer’s requirements.
Get Yourself a Good Tire Pressure Gauge
A quality tire-pressure gauge should live in your RV.
Not at home.
Not in the garage.
In the RV.
Check all of the tires before departure, including the inside tires on dual-wheel motorhomes.
And don’t forget the spare.
Finding out your spare is sitting at 35 PSI when you need it on the side of the interstate isn’t the ideal time to discover nobody has checked it for two years.
Consider a TPMS
A Tire Pressure Monitoring System (TPMS) is one of the upgrades we particularly like for RVs.
A good system can monitor tire pressure while you’re traveling, and many aftermarket RV systems can also monitor tire temperature.
That’s valuable because the tires can change dramatically between your driveway and three hours down the interstate.
Think of a TPMS as an early-warning system—not a substitute for physically inspecting your tires.
You should still check pressure and condition before traveling.
RV Tires Can Age Out Before They Wear Out
This is one of the biggest differences between RV tires and tires on many everyday vehicles.
Your car may accumulate enough miles to wear out the tread.
Your RV may not.
An RV can spend weeks or months parked and accumulate relatively few miles each year. That means a tire can still have plenty of tread remaining while aging internally.
Sunlight, heat, environmental exposure, storage conditions, inflation history and usage all affect tire life.
That’s why tread depth alone doesn’t tell you whether an RV tire is healthy.
Learn How to Read the Tire Date Code
Check the DOT information on your tires.
The last four digits of the DOT tire identification number indicate the week and year the tire was manufactured.
For example:
1824
means the tire was manufactured during the 18th week of 2024.
Don’t assume the tires are the same age as the RV. Tires may have been manufactured months before the RV was built, and replacement tires may obviously have completely different dates.
Write the dates down somewhere in your RV maintenance records.
Inspect the Sidewalls
Before a trip, walk around the RV and actually look at the tires.
You’re looking for things such as cracking, cuts, bulges, unusual deformation, objects embedded in the tire or anything else that doesn’t look normal.
Pay attention to both the outside and, where accessible, inside sidewalls.
If you see a bulge or significant structural-looking damage, don’t just inflate the tire and continue down the highway. Have it professionally inspected.
Look for Uneven Tire Wear
Your tread can tell you a lot about what’s happening underneath the RV.
Uneven wear can potentially point toward inflation problems, alignment issues, suspension problems, axle concerns or other mechanical conditions.
If one tire looks substantially different from the others, don’t simply replace it and forget about it.
Ask:
Why did this tire wear differently?
Fixing the cause may prevent destroying another tire.
Don’t Overload the RV
A perfectly inflated tire can still be overloaded.
Every RV has weight limitations, including ratings for the vehicle and its axles. Tires themselves also have load limits.
This becomes particularly important because RV owners tend to accumulate stuff.
Tools.
Grills.
Chairs.
Food.
Batteries.
Generators.
Water.
Camping equipment.
Spare parts.
And somehow, after a few years, enough miscellaneous gear to outfit a small hardware store.
Weight adds up surprisingly quickly.
Knowing the RV’s actual loaded weight is one of the best things you can do for both tire and overall vehicle safety.
Trailer Tires Deserve Special Attention
Travel trailers and fifth wheels create their own tire concerns.
Trailer tires can experience substantial lateral forces during tight turns and backing maneuvers. Tandem- and triple-axle trailers can visibly scrub the tires when turning sharply.
Regularly inspect the trailer tires, wheels, valve stems and lug nuts, and pay attention to unusual wear.
Also make sure the tires installed on the trailer have the appropriate load capacity and specifications for the application.
Don’t buy tires based solely on price.
Valve Stems Matter Too
Sometimes the tire isn’t where the air is escaping.
Inspect the valve stems and valve hardware as part of your tire routine. Cracked, damaged or deteriorated valve components can create slow leaks.
If you’re installing a TPMS with external sensors, make sure your valve stems are appropriate for the system you’re using.
What About Lug Nuts?
Tire safety doesn’t stop at the rubber.
Your wheels need attention too.
For towable RVs especially, check the manufacturer’s recommendations for lug-nut torque and re-torque intervals, particularly after wheel removal or service.
Use a proper torque wrench and the manufacturer’s specified torque—not “good and tight” with an impact gun.
Heat Is the Enemy
RV tires carry significant loads, often for hours at highway speeds.
Underinflation, overloading, high ambient temperatures and sustained highway travel can all contribute to tire heat.
If your TPMS alerts you to an abnormal pressure or temperature condition, don’t ignore it just because the tire still looks okay from the driver’s seat.
Safely get off the roadway and investigate.
Five minutes spent checking something is considerably better than discovering what was wrong after the tire comes apart.
Don’t Forget About Storage
Your tires still need attention when the RV isn’t moving.
Long-term storage can expose them to sunlight, weather and extended periods of sitting in one position.
Keep the tires properly inflated during storage and inspect them when bringing the RV back into service.
If you use tire covers, they’re primarily helping protect the tires from prolonged UV and environmental exposure—they don’t eliminate the need for inspection.
Create a 5-Minute Pre-Trip Tire Routine
You don’t need to turn every departure into a 45-minute inspection.
Develop a simple routine and do it consistently:
- Check cold tire pressure on every tire and the spare.
- Walk around and visually inspect tread and sidewalls.
- Look underneath for anything unusual around the tires, wheels or suspension.
- Verify your TPMS is operating and displaying every tire.
- Take unusual pressure loss, wear, vibration or temperature seriously.
After fuel stops or rest breaks, another quick walk-around is worthwhile. You’re already stopped—it takes a minute to look at the tires and see whether anything has changed.
The Bigger Lesson: Preventive Maintenance Is Cheaper Than Roadside Repairs
The same philosophy applies throughout an RV.
You don’t maintain something because it’s broken.
You maintain it so it doesn’t break.
Tires, brakes, batteries, roof seals, wheel bearings, appliances and even your black and gray holding tanks all benefit from preventative attention.
At Tank Rangers RV Tank Service, that’s a big part of what we believe RV ownership should be about: identifying problems before they become expensive problems.
Before your next trip, take five minutes and walk around your RV.
Check the tires. Check the pressure. Look at the date codes. Look at the tread. Look at the sidewalls.
Because the best tire problem is the one you discover before you pull out of the campground.
