Car Accessories Worth Buying Before a Road Trip

Planning a road trip involves more than mapping a route and packing a bag. Choosing the right car accessories makes the drive safer, more organized, and more comfortable for everyone on board. This guide covers what you actually need based on trip length, passengers, and destination, along with a pre-trip vehicle check and a few items you can leave behind.

Pre-Trip Vehicle Check

Before loading any accessories, verify that your vehicle is in good shape for the journey. A quick check of a few key systems can prevent common breakdowns. Consult your vehicle owner’s manual for specific maintenance intervals and procedures.

Tires

Check tire pressure when the tires are cold, using a reliable gauge. Compare the reading to the pressure listed on the sticker inside the driver’s door frame, not the number on the tire sidewall. Inspect the tread depth; a common rule of thumb is the penny test: insert a penny head first into the tread. If you can see all of Lincoln’s head, the tread is too shallow. Also look for uneven wear, cracks, or bulges on the sidewalls. If your vehicle has a spare tire, confirm it is inflated and accessible. If you are traveling in an area with extreme conditions, consider whether all-season or winter tires are appropriate.

Fluids

Check the engine oil, coolant, windshield washer fluid, brake fluid, and power steering fluid (if your vehicle uses it), and top up with the type and grade in your owner’s manual. A low brake fluid level can point to worn brakes or a leak, so have it inspected rather than simply topping it off. For long trips, carry a quart of the correct oil and a gallon of approved coolant in a secure container. Remember that washer fluid is especially important for highway driving that kicks up grime or bugs.

Wipers and Visibility

Replace windshield wiper blades if they leave streaks or skip. Clean the windshield and rear window inside and out. If your vehicle has a rear wiper, check that too. Proper visibility is critical in rain, snow, or glare from headlights. For additional clarity, some drivers use a microfiber cloth and a dedicated glass cleaner before the trip.

Essential Accessories by Category

Roadside Emergency Kit and Tire Inflator

Even a well-maintained vehicle can have a breakdown. A basic roadside emergency kit should include a reflective triangle or flares, jumper cables, a first-aid kit, a flashlight with extra batteries or a rechargeable version, a multi-tool, work gloves, a rain poncho, and a blanket. Many ready-made kits cover these items. You can also build your own using a sturdy bag or bin. For flat tires, a portable tire inflator that plugs into the 12-volt power outlet (cigarette lighter socket) is far more convenient than a manual pump. Some models include a built-in pressure gauge and a bright work light. Check the inflator’s specifications to ensure it can handle your vehicle’s tire type. For complete roadside readiness, consider a small tire repair kit with plugs and a reamer, but only if you are comfortable using it in an emergency.

For more detailed recommendations on assembling an emergency kit or choosing other trip supplies, see our road trip buying guides.

Cargo Carriers

When your vehicle’s trunk or cargo area is packed to the roof, a cargo carrier helps you bring everything you need. The right choice depends on your vehicle and how much gear you carry.

• Rear cargo boxes or baskets: Attach to a trailer hitch receiver. They keep weight off your roof and are easier to load than roof carriers. They do block rear access and may obscure your backup camera or rear visibility.
• Roof cargo boxes: Provide weatherproof storage for luggage, camping gear, or skis. They require roof rails or crossbars and reduce fuel economy noticeably at highway speeds. Measure your roof length and weight limits before buying.
• Roof cargo baskets: Open metal baskets that can hold bulky items like tents or coolers. You may need a waterproof cover or strap everything down with a cargo net and tie-downs.
• Soft-sided roof bags: A budget-friendly alternative that attaches to existing roof racks. They are weather-resistant but not waterproof, so pack items in dry bags or plastic bins inside.

For any cargo carrier, read the manufacturer’s instructions for weight limits and mounting. Distribute weight evenly and secure loose straps to avoid wind noise and damage.

Cooler and Food Storage

A good cooler keeps drinks cold and perishables safe. For a day trip, a soft-sided cooler bag with a sturdy zipper and waterproof lining is enough. For multi-day journeys, a hard cooler with thick insulation performs better. Some coolers double as a seat or have a drain plug for easy cleaning. To maximize ice retention, pre-chill the cooler and contents, use block ice or frozen water bottles, and keep the cooler out of direct sunlight. A separate dry bag or plastic tote can hold non-perishable snacks and utensils.

Do not forget a spill-proof travel mug or insulated water bottle for the driver. Reusable water bottles reduce waste and keep you hydrated without frequent stops.

Chargers and Electronics

Your trip likely relies on smartphones for navigation, music, and communication. A multi-port USB charger that plugs into the 12-volt outlet allows you to charge several devices at once. Look for a model that supports the fast-charging standard your devices use, such as USB-C Power Delivery. A long, tangle-resistant USB cable (at least 3 feet) lets passengers use their phones comfortably from the back seat.

For passengers watching videos, a tablet mount that attaches to the headrest or back of the front seat is helpful. Keep a portable battery pack (power bank) charged and ready for emergencies. Also consider a phone mount for the dashboard or windshield. Be aware that windshield mounts are regulated in some states; check your state’s laws regarding driver-view obstructions before mounting anything to the windshield.

Interior Organization

Messy interiors cause stress and make it hard to find what you need. Simple organizers keep items within reach.

• Seat gap filler: A foam or silicone wedge that fits between the center console and the seat prevents phone, keys, and change from falling into the gap.
• Trunk organizer: A collapsible bin or tote with compartments keeps groceries, tools, and emergency gear from sliding around. Some have a cooler section or are waterproof.
• Over-the-seat organizer: Hangs on the back of the front seat with pockets for tablets, toys, tissues, and trash bags. Ideal for rear-seat passengers.
• Center console tray: Inserts into the console bin to create two levels, giving you a place for small items without digging to the bottom.

Comfort Items

Long hours in the car can lead to fatigue and discomfort. A few accessories help keep you fresh and focused.

• Seat cushions: A memory foam or gel cushion adds lumbar support or relieves pressure on long drives. Some have a massage or cooling feature, but battery-powered cushions require power management.
• Sunshade: A foldable reflective windshield cover keeps the cabin cooler when parked and protects your dashboard. Side window shades (especially for rear passengers) block glare and UV rays. For rear windows, suction-cup or static-cling shades are widely available; check local laws regarding tint or screens on windows.
• Window visor extenders: Small plastic add-ons that attach to your existing sun visor to block low-angle sun from the side. They can reduce squinting and improve visibility during sunrise and sunset.
• Trash bin: A small clip-on bag or a dedicated plastic bin with a lid keeps wrappers and cups from piling up on the floor.

Kids’ Gear

Traveling with children requires extra planning. Accessories that keep them secure and entertained help the whole trip go smoothly.

• Travel tray: A soft, wipeable tray that fits over a car seat or booster seat provides a flat surface for drawing, snacks, or a tablet. Ensure it does not interfere with the harness straps and is used according to the car seat manufacturer’s guidance.
• Portable white noise machine: A small battery-powered device can help a baby or toddler nap in the car, especially during rest breaks when the engine is off.
• Window shade: Static-cling or retractable shades reduce glare and sun exposure for children in the back seat. Some are UV-blocking and help keep the car cooler.
• Back-seat mirror: Allows the driver to see a rear-facing infant without turning around. Choose a shatterproof mirror with a secure strap. Follow the mirror’s installation instructions to avoid it becoming a projectile in a sudden stop.

For general advice on vehicle accessories for frequent driving, you may also refer to our automotive buying guides.

What You Can Skip

Not every gadget or add-on is worth your money or trunk space. Here are a few accessories that often underdeliver or complicate a road trip.

• Heavy duty car vacuums: A small handheld cordless vacuum can be handy for quick cleanups, but a full-size shop vacuum wastes space and requires a power inverter. Wait until you are home for a deep clean.
• Electric coolers (thermoelectric): These plug into the 12-volt outlet but can only cool a limited amount below the surrounding temperature. They are inefficient and can drain your car battery if left running when the engine is off. A good passive cooler with quality ice packs is more reliable.
• Fancy LED interior lighting strips: While ambient lighting can be fun, installing strip lights requires careful wiring and may distract the driver or cause battery drain. Stick to the vehicle’s built-in lights or a simple USB-powered dome light.
• Excessive air fresheners: A single vent clip or hanging freshener is fine, but multiple strong scents can cause headaches during long hours in a confined space. Many drivers prefer unscented cleaning wipes to keep the cabin smelling fresh naturally.
• Bulky neck pillows for all passengers: While a good travel pillow helps the driver, cheap foam pillows can be too warm or push the head forward. If you buy pillows, choose ones designed for car seats and test them before the trip.

Quick-Reference Table by Trip Type

This table offers a starting point. Adjust your accessory list based on your specific destination, vehicle type, and passenger needs. Always check product instructions for safe use and weight limits.

FAQ

Do I need a portable jump starter instead of jumper cables?

Both work, but a jump starter (a battery pack with cables built in) offers convenience if you are alone or if another vehicle is not available. They also include USB ports for charging phones. Jumper cables are lighter and never lose their charge. Whichever you choose, learn how to use it before you leave. Follow the instructions for safe connections to avoid damage to your vehicle’s electronics.

How do I choose the right size of cargo carrier?

Measure your available roof or hitch space and check your vehicle’s dynamic roof load limit (usually found in the owner’s manual). A carrier that is too large can exceed the weight rating even before you fill it. For a roof box, consider the height of your garage door and parking clearance. For a hitch carrier, check the hitch’s tongue weight and ensure the carrier does not block the license plate or lights; you may need an auxiliary light bar that is legal in your state.

What should I pack for kids besides toys and snacks?

Bring a change of clothes, wet wipes, a small first-aid kit with child-friendly bandages, and a spare car seat cover in case of motion sickness. A white noise machine or a familiar sleep toy can help during rest breaks. Keep a plastic bag for trash and soiled items. Also ensure any electronic devices are pre-loaded with movies or games, and headphones are available if you want quiet.

Are power inverters useful on a road trip?

A power inverter converts the 12-volt DC power to household-style AC power, allowing you to plug in standard devices like a laptop or a small blender. They are useful for extended trips if you need to charge a laptop or run a small appliance. However, they generate heat, and high-wattage models require a direct connection to the battery. For most drivers, a multi-port USB charger and a power bank suffice. If you choose an inverter, read the instructions and do not exceed its rated wattage.

Preparing for a road trip with the right accessories makes the journey safer, more comfortable, and less stressful. Focus on the essentials that match your trip—vehicle readiness, emergency gear, cargo management, and passenger comfort. Skip the novelties and keep your space uncluttered. For further reading on choosing useful car accessories for everyday driving, explore our car accessories for daily commuters page, which shares many of the same principles for organization and preparedness.