A Five-Minute Walkaround Before You Roll

Published October 23, 2026 · Last reviewed October 23, 2026

Why a fixed lap beats a memory

Most departure mistakes are not ignorance. They are a step skipped on a morning when the weather, the kids or a late check-out changed the routine. An awning left out, a step still down, a cord still plugged in: each is easy to avoid and expensive to fix. A fixed lap, always in the same direction, turns a long list into a habit.

This page is generic. Every rig differs, and your manufacturer manuals come first for tow vehicle, trailer, chassis, slide, awning and propane equipment. Where something below conflicts with them, follow them.

The time budget

The lap below adds up to five minutes: tires 1:30, hitch or pin 1:00, lights 0:45, things that stick out 0:45, propane and utilities 0:30, mirrors and roof 0:30. Times are a target for a practised lap, not a rule, and a rushed lap is worse than a slightly longer one.

1. Tires (about 1.5 minutes)

Action

Look at every tire, including duals and the spare if you carry one, for bulges, cracks, objects stuck in the tread and a low-looking sidewall. Read the pressure with a gauge when the tires are cold, and compare it with the figure on your rig’s placard or in the manual.

Why it helps

A low or damaged tire is a common cause of breakdowns, and heat on a long day makes it worse. Pressure is the one item you can check and fix before the trip.

Verification

Each tire matches the manufacturer’s figure for your loaded weight. See the tire pressure and heat guide for the reasoning.

2. Hitch, pin and brakes (about 1 minute)

Action

Check the connection by sight and by hand. For a bumper-pull trailer, that means the coupler latched and pinned or locked, safety chains attached, the breakaway cable attached and the electrical plug seated. For a fifth wheel, confirm the jaws are locked around the kingpin, the safety latch is engaged, and the landing gear is fully up. Follow your hitch and trailer manuals for the exact steps.

Why it helps

A faulty connection is the kind of problem that gets worse at speed. A mistake here is difficult to recover from on the road.

Verification

You have physically touched and looked at each item, and you have checked the brake controller setting if your tow vehicle has one.

3. Lights (about 45 seconds)

Action

With a helper at the back, run the brake lights, left and right turn signals, hazards and running or marker lights. If you are alone, use a reflective surface or a phone camera on a stand.

Why it helps

Other drivers read your lights to know what you are about to do. A bulb or connector fault is easy to fix in the driveway and awkward on a shoulder.

Verification

All lights show, none flickers, and the trailer and tow vehicle lights match each other.

4. Things that stick out (about 45 seconds)

Action

Check that the awning is retracted and latched, slides are fully in and locked, steps are up, stabilizers or leveling jacks are raised, and exterior doors and compartment hatches are latched. Consult your manual for the correct order of operation for slides and levelers.

Why it helps

Anything that is out of place at speed can be torn off or can strike something. An awning in the wrong position is a common loss on the first gust.

Verification

No warning light is showing for slides, jacks or steps on the panel, and you have looked at each one with your own eyes, not trusted the indicator alone.

5. Propane and utilities (about 30 seconds)

Action

Set propane as your manual says it should be for travel. Many rigs call for the tank valve to be closed while moving, but some appliances and some manuals say otherwise, so read yours. Then disconnect and stow shore power, water and sewer hoses and cables, and cap the outlets.

Why it helps

Equipment connected to the campsite can be damaged or can damage the rig when you pull away. Propane left in the wrong state is a hazard, and the right state differs by rig.

Verification

You can state what your manual says about propane for travel, the hookup posts are empty, and everything you unplugged is stowed. The propane system checks cover the system itself.

6. Mirrors and roof (about 30 seconds)

Action

Adjust the mirrors from the driver’s seat and confirm you can see along both sides of the rig. Then look at the roof: vents and fan covers closed, antennas or satellite dishes lowered, no loose items, and a plan for any low clearance on the route.

Why it helps

You cannot fix what you cannot see. A vent left open or an object on the roof can fail at speed, and the roof is the part of the rig you are least likely to look at.

Verification

You can see the rear wheels or the full side of the rig in each mirror, and nothing is open or loose on the roof. If you cannot see the roof, use a ladder or a pole camera, or climb only where the manufacturer says the roof is meant to be walked on.

A worked example, with invented numbers

These numbers are made up to show the method. Suppose your rig’s placard gives 65 psi cold for the tires at your loaded weight, and you read four tires as 65, 64, 65 and 58. The last tire is 7 psi below the placard figure, about 11 percent low (7 ÷ 65). That is not a cosmetic difference, so you add air and re-read, and then you look at that tire for a nail or a slow leak. The lap took 90 seconds and the finding cost one extra minute. Compare that with discovering the same tire after two hours of highway heat.

The same lap in a different order shows why order matters. If you start at the driver’s door and go clockwise every time, you always reach the hitch area at the same point, and a missing step stands out.

If you only have a minute

Do the hitch or pin, the tires and the things that stick out. Between them they cover the items with the most immediate consequence. If you find something you cannot fix on the spot, do not leave. If the load has changed, the towing weight guide shows how to check your numbers.