Buying an RV is only the beginning. Keeping it in good working order takes a little ongoing attention, too.

The good news? RV preventative maintenance doesn’t have to be overwhelming.

A few simple inspections throughout the year can help you catch small problems before they turn into expensive repairs, unexpected breakdowns, or weeks with your camper sitting in the service center. That’s exactly why. our favorite expert, Josh the RV Nerd, put together this preventative maintenance guide after reviewing manufacturer documentation, recommendations, and years of real-world RV experience.

This checklist is primarily focused on towable RVs, including travel trailers and fifth wheels. Many of the same maintenance practices also apply to motorhomes, although motorized RVs require additional engine, drivetrain, and chassis maintenance.

One important note before we start: every RV is different. Manufacturer recommendations, torque specifications, lubricants, sealants, roofing materials, axle systems, and service intervals can vary.

Always use your RV owner’s manuals and component manuals as the final authority for your specific camper.

RV Maintenance at a Glance

Table of Contents

Why RV Preventative Maintenance Matters
RV Pre-Trip Maintenance Checklist
Check Your RV Tires Before Every Trip
Inspect Lug Nuts, Axles & Suspension
Check Your RV Battery
Test Appliances & Propane
Test Smoke, CO & Propane Detector
Inspect Battery Connections
Clean Your RV Filters
Check Shower & Exterior Seals
Lubricate Doors & Hinges
Inspect Window Weep Holes
Check Your RV Roof
Every 6 Months
Annual RV Maintenance
FAQs
Final Thoughts

Why RV Preventative Maintenance Matters

Preventative maintenance isn’t just about keeping your RV looking nice, it’s about identifying problems before you’re hundreds of miles from home.

Things like low tire pressure, a damaged electrical connection, deteriorating roof sealant, or a weak battery may seem minor while your RV is parked in the driveway, but on the highway or at a campground, they can quickly become much bigger problems.

Simple maintenance schedules can help you spend more time camping and less time waiting for repairs.

Preventative Maintenance Can Help You:

Bottom Line: A few minutes of inspection today can potentially save you hours, or weeks, of headaches later.

RV Pre-Trip Maintenance Checklist

Before every trip, give your RV a quick inspection. You don’t necessarily need to perform an intensive service before every weekend getaway. The goal is simply to make sure the important systems look and operate the way they should before you leave for your next adventure.

Before You Leave, Check:

• Tire condition and pressure
• Lug nut torque
• Axles and suspension
• RV battery condition
• Major appliances
• Propane appliances
• Smoke and CO/propane detectors
• 7-way electrical connection
• Brake lights
• Turn signals
• Exterior marker lights

Check Your RV Tires Before Every Trip

Start where the rubber literally meets the road. Improper inflation and exceeding the tire’s rated speed are two common contributors to towable RV tire failures.

Before towing, visually inspect every tire for:

What PSI Should Your RV Tires Be?

This is where owners sometimes get confused.

The PSI molded onto the sidewall of the tire represents the tire’s rated maximum pressure. However, if your RV still has its factory-specified tires, you should also check the federally required tire and loading information label on the RV for the manufacturer’s recommended inflation pressure.

If your tires have been replaced with a different size, load range, or tire type, follow the applicable tire and RV manufacturer guidance rather than assuming the original sticker still applies.

Bottom Line: Don’t guess at tire pressure. Know what your specific RV and tire combination requires.

Inspect Lug Nuts, Axles & Suspension

While you’re already down by the tires, take a few minutes to inspect the rest of the running gear.

Check:

• Lug nuts
• Springs
• Axles
• Suspension components
• Axle hangers
• Attachment points
• Signs of significant corrosion or damage

Lug nut torque varies by RV, wheel, and axle configuration. Josh notes that many may fall somewhere around 90–120 ft.-lbs., but he specifically cautions owners not to treat that as a universal specification. Check the manual for your RV and components.

Surface rust isn’t necessarily cause for alarm. What you’re looking for is significant deterioration, damage, or anything that doesn’t look right.

Bottom Line: Discovering a suspension or wheel problem in your driveway is considerably better than discovering it at highway speed.

Check Your RV Battery

Your RV battery does much more than power lights when you’re camping.

On a towable RV equipped with electric brakes, the battery can also provide power to the emergency breakaway system if the trailer becomes disconnected from the tow vehicle. That’s one reason having a functioning 12-volt system is so important before towing.

A low battery can also make perfectly functional RV components appear broken.

Many perceived electrical problems trace back to low battery voltage rather than failed slides, awnings, jacks, or other equipment.

Before Leaving:

• Check battery charge
• Look for obvious cable damage
• Confirm your 12V systems operate
• Verify the breakaway system has power

A small solar panel can also help maintain the battery during storage, especially since some RVs continue to have parasitic electrical draw even when a battery disconnect is switched off.

Test Your Appliances Before You Leave

Don’t wait until you’re 500 miles from home to discover your refrigerator won’t cool. Take a few minutes before departure to test the equipment you expect to use.

Consider Checking:

• Refrigerator
• Microwave
• Stove
• Oven
• Water heater
• Furnace
• Other major appliances

For example, you can put a cup of water in the microwave and run it briefly to confirm it’s heating. Turn the refrigerator on early enough to verify that it’s cooling before loading it with food. It’s a simple habit that can save you from an unpleasant surprise when you arrive.

Don’t Forget the Propane System

If you’ll be using propane appliances during your trip, make sure the propane system is operating before leaving.

When propane bottles have recently been changed or the RV hasn’t been used for a while, air can sometimes enter the lines.

Josh’s tip: use the stovetop to help purge that air. Once the burner develops a steady, consistent flame rather than sputtering, much of the air has worked its way through the system.

Afterward, confirm other propane appliances you’re planning to use operate properly.

Important: If you smell propane, suspect a leak, or cannot get the system operating normally, shut the system down and have it inspected rather than continuing to troubleshoot by repeatedly attempting ignition!

Test Your RV Safety Alarms

Your pre-trip inspection should also include your safety equipment.

Test:

• Smoke alarm
• Carbon monoxide detector
• Propane/LP detector

Smoke alarms may use replaceable batteries, while many RV carbon monoxide and LP detectors are wired directly into the RV’s 12-volt system and are replaced as a complete unit once they reach the end of their service life.

Don’t ignore a detector that’s repeatedly chirping. Check the manufacturer’s instructions to determine whether it needs a new battery, has reached the end of its life, or is warning you of an actual problem.

Bottom Line: Safety detectors are easy to forget, until you desperately need one.

Inspect Your 7-Way Connector & Exterior Lights

Before connecting your RV to the tow vehicle, take a close look at the trailer’s electrical pigtail.

Watch For:

• Bent pins
• Corrosion
• Scorching or heat damage
• Frayed wiring
• Dirt or debris

Then connect the RV and verify:

• Brake lights
• Turn signals
• Running lights
• Exterior marker lights

Josh notes that when communication problems occur between the tow vehicle and RV, his experience has often traced the issue to the tow vehicle’s 7-way connection or wiring rather than the trailer pigtail itself. Road salt, rocks, water, and other debris can take a toll on the truck-side connection.

Bottom Line: Before assuming there’s an electrical problem inside your RV, inspect both sides of the connection.

Every 3 Months: RV Maintenance Checklist

Your pre-trip inspection is primarily about making sure your RV is ready to travel.

Your quarterly RV maintenance routine shifts the focus toward preventing long-term wear and damage.

About every three months, Josh recommends paying attention to the battery system, filters, shower seals, exterior seals, hinges, windows, and most importantly, the roof.

Every 3 Months, Check:

• Battery terminals and cables
• Range hood filter
• Air conditioner filters
• Shower seals
• Door and baggage-compartment hinges
• Exterior sealant
• Window drainage
• Roof condition

Inspect Battery Terminals & Cables

Open the battery compartment and take a close look at the connections.

Look for:

• Corrosion
• Loose or damaged cables
• Exposed wiring
• Deteriorating connections
• Other visible damage

The goal is to make sure the connection between your RV’s 12-volt system and its power source remains clean and secure.

Clean Your RV Filters

Filters are easy to ignore because you don’t usually see them. Unfortunately, a clogged filter can make a perfectly functional appliance seem like it’s failing.

Check the:

• Range hood/exhaust filter
• Air conditioner return filters

Depending on the filter, you may be able to wash it with mild soapy water, rinse it, allow it to dry, and reinstall it. Others may need to be replaced. Always follow the equipment manufacturer’s instructions.

Camping in dusty areas, heavy pollen, or around cottonwood and similar trees may require more frequent cleaning.

Bottom Line: Before deciding your A/C isn’t working properly, check whether it can actually breathe.

Check Your Shower Seals—But Don’t Seal Everything

Inspect the shower for deteriorating seals or areas where water could travel behind the surround. But don’t automatically assume every seam needs caulk.

On some two-piece RV shower designs, the shower pan has a raised lip behind the wall surround. The lower seam may intentionally remain unsealed so that any water that gets behind the surround has a way to drain back out. Sealing that joint could potentially trap moisture behind the wall.

That’s another reason the manufacturer’s instructions matter.

Bottom Line: A gap isn’t always a defect. Understand how your particular shower was designed before reaching for the caulk gun.

Lubricate Doors & Hinges

Every few months, walk around the RV and check moving exterior hardware such as:

Although the correct product can vary based on the component, the manufacturer documentation Josh reviewed commonly recommended graphite- or silicone-based lubricants.

Use the lubricant recommended for your specific hardware.

Inspect Exterior Seals

Walk around the entire RV and visually inspect sealant around:

• Windows
• Doors
• Baggage compartments
• Exterior fixtures
• Roof penetrations
• Other sealed openings

You’re looking for cracking, separation, gaps, or anything that has changed since your last inspection.

Finding a seal that’s beginning to fail is relatively simple to address.

Finding the same seal after it has allowed water into the wall for six months is an entirely different situation.

Don’t Plug Your Window Weep Holes

Those little openings along the bottom of some RV windows aren’t necessarily missing plugs, they’re weep holes. Their job is to allow condensation and moisture to drain instead of accumulating around the window frame. Plugging them can interfere with that drainage system.

Humidity becomes especially important during colder weather because furnaces don’t dehumidify the air in the same way an air conditioner does.

Bottom Line: Before “fixing” something that looks unusual on your RV, make sure it isn’t working exactly as intended.

Your RV Roof May Be the Most Important Quarterly Inspection

If you remember only one thing from this maintenance guide, make it this:

Check your roof!

Roof inspection is one of the most commonly overlooked, and potentially most important, parts of RV preventative maintenance.

Look For:

• Tears in membrane roofing
• Hail damage
• Tree-branch damage
• Cracked or separating sealant
• Damaged roof components
• Debris around air conditioners
• Anything that has changed since your last inspection

Water entering through the roof can travel downward through walls, insulation, cabinetry, and flooring before you ever notice the leak inside. That’s why catching a problem early matters so much.

Know Your Roof Material

RV roofs aren’t all the same.

You may have:

• EPDM
• TPO
• PVC
• Fiberglass
• Aluminum
• Another composite or proprietary roofing material

Different materials can require different cleaners, conditioners, and sealants. Some may need little more than water and mild soap, while others have manufacturer-specific products and maintenance requirements.

Bottom Line: Don’t use a random roof cleaner or sealant simply because the bottle says “RV.” Check what your roof manufacturer actually recommends.

Every 6 Months: RV Maintenance Checklist

At the six-month mark, it’s a good time to repeat many of the same checks you perform before a trip, especially if your RV has been sitting in storage.

That means going back through the basics:

• Tires
• Lug nuts
• Axles
• Suspension
• Battery
• Brakes
• Appliances
• Safety systems
• Exterior lights

If your RV is stored seasonally and you can’t access it every three months, Josh recommends doing your quarterly inspection before putting it away and again as soon as you bring it back out. The goal is to catch small problems before they have months to get worse.

Inspect the RV Underbelly

A couple of times each year, take a look underneath your RV.

Your camper may have an enclosed underbelly or an open one, but either way, you’re looking for anything that doesn’t belong there.

Watch For:

Bottom Line: A quick look underneath your RV can reveal leaks or damage long before they become obvious inside.

Give Your Tires an Annual Checkup

Tires deserve attention throughout the year, but your annual maintenance is a good opportunity for a more thorough inspection.

Check:

• Tire pressure
• Tread condition
• Sidewall condition
• Weather cracking
• Uneven wear
• Signs of flat spotting

RVs that sit for long periods can still experience tire problems. Temperature changes can affect inflation, and prolonged storage may contribute to flat spotting.

Josh also notes that some manufacturer recommendations call for annual tire rotation, something many RV owners never consider.

Should You Balance RV Tires?

Another maintenance item that’s easy to overlook, tire balancing.

We routinely balance tires on cars and trucks, and our expert Josh argues there’s little reason not to consider doing the same thing on a towable RV.

Properly balanced tires may help them:

• Track more smoothly
• Reduce vibration
• Generate less heat
• Wear more evenly
• Potentially reduce stress on the RV while traveling

It’s not necessarily the first maintenance task people think about, but it can be worth discussing with a tire professional.

Annual Axle & Bearing Maintenance

Josh says annual bearing inspection and service feels like a more practical routine for many average RV owners than automatically tearing everything apart every six months, especially if the RV isn’t traveling huge distances.

For higher-mileage travelers, service may need to happen more often!

Why It Matters

Problems with:

• Tires
• Bearings
• Brakes
• Wheels

aren’t just inconvenient. Josh points out that issues at ground level are a leading source of fires in towable RVs, making running-gear maintenance a genuine safety issue rather than simply an ownership chore.

Bottom Line: Your axle and bearing maintenance isn’t the glamorous part of RV ownership, but it’s among the most important.

Your RV Preventative Maintenance Schedule

Here’s a simplified version of the full routine.

This shouldn’t replace the maintenance schedule in your owner’s manuals. Think of it as a framework for organizing the things that are easiest to forget.

Frequently Asked Questions About RV Preventative Maintenance

How often should you inspect an RV roof?

Josh recommends making a visual roof inspection part of your quarterly maintenance routine. You should also inspect it after severe weather, tree contact, hail, or anything else that could potentially damage the roof.

How often should RV wheel bearings be serviced?

The correct interval depends on your axle system and how much you travel. The transcript discusses annual service or approximately every 3,000 miles for higher-use situations, but your axle manufacturer’s recommendations should take priority.

Should I grease RV easy-lube hubs myself?

You can if your axle manufacturer provides that procedure, but don’t simply keep pumping grease into the hub without understanding how the system works. Josh warns that excessive grease may potentially reach the brake components.

Do RV tires need to be rotated?

Some manufacturer recommendations call for periodic or annual tire rotation. Check the recommendations for your specific tires and axle setup.

Should travel trailer tires be balanced?

Josh recommends considering it. Balancing may help tires run more smoothly and reduce heat and vibration during travel.

What does a lifetime RV roof warranty cover?

It depends entirely on the warranty. Josh cautions that “lifetime roof warranty” often refers specifically to the roofing membrane rather than the entire roof structure, seals, decking, and other components.

Does this maintenance checklist apply to motorhomes?

Much of it does. However, motorhomes also require the additional engine, drivetrain, chassis, and vehicle maintenance associated with the motorized portion of the RV.

Final Thoughts: Preventative Maintenance Keeps You Camping

Owning an RV comes with maintenance. There’s really no way around that. But the purpose of this checklist isn’t to make RV ownership sound complicated. It’s actually the opposite.

Most of these tasks are quick inspections and small preventative steps… checking tire pressure, looking at seals, cleaning a filter, inspecting the roof, keeping a battery charged, or noticing that something doesn’t look quite right.

The sooner you catch a problem, the better your chances of fixing it before it becomes expensive, or before it leaves your RV sitting in the service center while everyone else is camping.

Consistently performing even the basic maintenance in this guide could significantly reduce preventable repairs and downtime.

So create a few reminders in your phone, save this checklist, and make preventative maintenance part of your camping routine.

Because the best place for your RV isn’t parked at a service center, it’s at the campground!