A long road trip is a lot more fun when you are not stuck on the shoulder 300 miles from home. Most roadside breakdowns come from things you could have spotted in your own driveway: low tire pressure, an old battery, worn brakes, or low fluids. This checklist for preparing your car for a long road trip walks you through what to check, when to check it, and what to pack, so your car is as ready as you are.
Start early: 1 to 2 weeks before you leave
If your car is due for service soon, get it done now, not the day before. That gives you time to fix anything the mechanic finds and to drive a few days after the work to make sure everything feels right. A new problem discovered the night before a trip is a stressful way to start a vacation.
The road trip car checklist
1. Tires (including the spare)
- Set the pressure to the number on the driver’s door sticker, with the tires cold. Some cars list a higher pressure for full loads.
- Check tread depth and look for bulges, cuts, or uneven wear.
- Check the spare’s pressure, and make sure the jack and lug wrench are in the car.
Not sure how to use the spare? Read our guide on how to change a flat tire step by step before you go.
2. Engine oil
Check the level and condition. If you are close to your next oil change, do it before the trip rather than halfway through. See how often to change your car motor oil.
3. Other fluids
- Coolant: check with the engine cold. Overheating is a common long-trip breakdown.
- Brake fluid: it should be between the marks. A low level can mean worn pads or a leak.
- Transmission fluid: if your car has a dipstick, follow our guide on how to check automatic transmission fluid at home.
- Power steering fluid: on cars that use it.
- Washer fluid: fill it up. Bugs on the highway use a lot of it.
4. Battery
Get it tested if it is more than three years old. Clean any corrosion from the terminals and make sure the cables are tight. Packing a portable jump starter can save hours of waiting.
5. Brakes
A loaded car on mountain roads works the brakes hard. If you hear squealing or grinding, feel a pulsing pedal, or the car pulls to one side, have them checked before you leave.
6. Belts and hoses
With the engine off and cool, look for cracks, fraying, bulges, or leaks. A failed belt or hose can stop you in your tracks.
7. Lights, wipers, and AC
- Test headlights, high beams, brake lights, turn signals, and hazards.
- Replace streaky wipers. See how to replace windshield wiper blades.
- Make sure the AC and heater both work. Hours in a hot car are miserable.
8. Warning lights
Do not start a long trip with a warning light on. Read the code or get it checked first. Our guide on why your check engine light is on can help.
What to pack in the car
- Spare tire, jack, and lug wrench (plus wheel lock key if you have one)
- Jump starter or jumper cables
- Tire pressure gauge and a portable inflator
- Flashlight and spare batteries
- First-aid kit
- Reflective triangles or flares
- Phone chargers and a power bank
- Water, snacks, and any medications
- Owner’s manual, insurance card, and roadside assistance number
- Basic tools, duct tape, and a rag
Packing and loading tips
- Do not go over your car’s load limit, which is listed on the door sticker or in the manual.
- Put the heaviest items low and toward the center of the car.
- Keep the rear view clear if you can.
- Secure loose items so they do not fly forward in a hard stop.
- Roof boxes and bike racks reduce fuel economy and change handling, so drive a little more gently.
On the road
Take a break every couple of hours, for you and the car. At fuel stops, walk around the car, glance at the tires, and watch the temperature gauge. If you notice new vibrations, noises, or smells, do not ignore them. Our guides on car shaking at high speeds and burning smells after driving fast can help you decide whether it is safe to continue.
Frequently asked questions
Should I get my car serviced before a road trip?
If service is due within the next few thousand miles, yes. Otherwise, a careful check of tires, fluids, brakes, and battery is usually enough. Many shops offer a quick pre-trip inspection.
Should I add more air to my tires for a road trip?
Use the pressure on your door sticker. Some vehicles list a separate, higher pressure for a full load. Do not go above the maximum printed on the tire.
How far can an older car safely go on a road trip?
Age matters less than condition. A well-maintained older car can handle long trips. Pay extra attention to coolant, belts, hoses, and tires.
Final thoughts
Preparing your car for a long road trip takes about an hour and can save you a ruined vacation. Check the tires and spare, top up the fluids, test the battery and brakes, make sure the lights and wipers work, and pack a simple emergency kit. Then relax and enjoy the drive.
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