RV Maintenance Checklist: Keep Your Rig Road-Ready

Your RV is your home on wheels — and like any home, it needs regular care to stay safe, comfortable, and reliable. Skipping maintenance doesn't just cost you money down the road; it can strand you miles from help or cut a trip short at the worst possible moment.

This checklist covers everything you need to inspect and service, broken down by system and season. Whether you're a weekend warrior or a full-timer parked at a place like Double Time RV Park in Alvin, Texas, staying on top of these tasks keeps your investment protected and your travels stress-free.

RVs take a beating. They're exposed to UV rays, road vibration, temperature swings, and moisture — all of which degrade materials faster than a stationary home. A small roof leak ignored for one season can turn into a $10,000 repair. A tire with low tread can blow out at highway speed.

The good news: most RV maintenance is straightforward and inexpensive when caught early. A few hours of inspection twice a year can save you thousands.

The roof is your first line of defense against water damage — the number one cause of costly RV repairs.

Every 3 months:

• Walk the roof (if safe to do so) and inspect all seams, vents, and skylights
• Look for cracks, bubbling, or separation in the sealant
• Check around air conditioner units and antenna mounts
• Reapply lap sealant anywhere you see cracking or gaps

Every 6 months:

• Inspect all exterior caulking around windows, doors, and slide-outs
• Check slide-out seals for tears or compression loss
• Look for soft spots on the roof that indicate water intrusion below
• Clean the roof with an RV-safe cleaner and apply UV protectant

Pro tip: Use a self-leveling lap sealant like Dicor for rubber roofs. It flows into gaps and cures flexible, handling the constant movement of an RV.

Tire failure is one of the most dangerous and preventable RV problems.

Before every trip:

• Check tire pressure when cold (consult your door placard or owner's manual)
• Inspect tread depth — replace at 4/32" or less
• Look for sidewall cracking, bulges, or uneven wear
• Check lug nut torque after the first 50 miles of a new trip

Every 6 months:

• Inspect wheel bearings for play or noise
• Check brake pads and drums (or discs on newer rigs)
• Inspect brake lines for cracks or corrosion

Annual:

• Replace tires every 5–7 years regardless of tread, as UV and ozone degrade rubber internally
• Have wheel alignment checked if you notice uneven wear

RVs in Texas face intense UV exposure. Park in shade when possible and use tire covers to extend tire life significantly.

Water damage from plumbing failures is second only to roof leaks in repair costs.

Every 3 months:

• Run water through all faucets, shower, and toilet to check for leaks
• Inspect under sinks and around the toilet base for moisture
• Check the water heater anode rod (replace when less than 50% remains)
• Test the water pump for proper pressure

Annually:

• Flush and sanitize the fresh water tank with a bleach solution (1/4 cup per 15 gallons)
• Inspect all water lines for cracks, especially in areas exposed to heat
• Test the pressure relief valve on the water heater
• Check the black and gray tank sensors for accuracy

Winterizing (if applicable):

• Drain all tanks and water lines
• Blow out lines with compressed air or add RV antifreeze
• Bypass the water heater before adding antifreeze

In South Texas, hard freezes are rare but do happen. Even at a park with full hookups, know how to protect your lines during a cold snap.

Electrical issues range from nuisances to fire hazards — don't ignore them.

Every 3 months:

• Test all interior lights, outlets, and appliances
• Check the battery voltage (should be 12.4V+ when fully charged)
• Inspect battery terminals for corrosion — clean with baking soda and water
• Test the GFCI outlets in the kitchen and bathroom

Every 6 months:

• Inspect the shore power cord for damage, melting, or loose prongs
• Check the converter/inverter for proper operation
• Test the generator (run it under load for 2 hours)
• Inspect all 12V fuses and replace any that look discolored

Annually:

• Have a certified RV technician inspect the LP gas system and connections
• Test all smoke, CO, and LP gas detectors — replace batteries
• Check the slide-out motor and wiring for wear

At a full-hookup park: Always use a surge protector between the pedestal and your RV. Power surges and low voltage are common at campgrounds and can destroy your appliances.

If you're in a motorhome, the engine needs the same attention as any vehicle.

Every 3,000–5,000 miles or annually:

• Change engine oil and filter
• Check coolant level and condition
• Inspect belts and hoses for cracking or wear
• Check transmission fluid, power steering fluid, and brake fluid

Every 15,000–30,000 miles:

• Replace spark plugs and air filter
• Flush and replace coolant
• Inspect the exhaust system

Before long trips:

• Check all fluid levels
• Test headlights, taillights, and turn signals
• Verify the emergency brake works properly

These moving parts take constant stress and are often neglected.

Every 3 months:

• Lubricate slide-out rails and gears with a dry lubricant (not WD-40)
• Inspect the slide-out seals for tears or compression loss
• Clean and lubricate awning arms and roller tube
• Check awning fabric for mold, tears, or UV damage

Annually:

• Have a technician inspect slide-out motor and wiring
• Re-seal around slide-out openings if any gaps appear

Every 6 months:

• Clean refrigerator coils and check door seals
• Test the furnace and air conditioner before the season you'll need them
• Inspect the range hood filter and clean or replace
• Check all cabinet latches and drawer slides

Annually:

• Deep clean the refrigerator and check for mold in the door gaskets
• Inspect the mattress and bedding for moisture or mold
• Check all window seals and screens

The single best thing you can do for your RV's long-term health is keep a written maintenance log. Record every inspection, repair, and service with the date and mileage. This helps you:

• Track what's due and what's been done
• Spot patterns (a tire that keeps losing pressure, a seal that keeps cracking)
• Prove maintenance history when selling your RV
• Provide documentation for warranty claims

A simple notebook works fine. Apps like RV Life Maintenance Tracker or Roadtrippers make it even easier.

When you're parked long-term at Double Time RV Park in Alvin, Texas, you have the stability to tackle maintenance properly. You're not rushing to break camp — you can take your time, spread out your tools, and do the job right.

Our full hookups mean you can run your appliances while testing them, and our location near Houston gives you easy access to RV dealers, parts stores, and certified technicians if you need professional help.

A well-maintained RV is a reliable RV. Work through this checklist twice a year and you'll spend far more time enjoying the road than dealing with breakdowns.