Car Emergency Kit: What to Keep in Your Vehicle Year-Round
Your car is often your first line of response in an emergency — and your biggest stranded risk. A well-stocked car emergency kit prepares you for roadside breakdowns, sudden evacuations, and being stuck in traffic during a weather event. It should live in your trunk year-round with seasonal swaps.
Last reviewed: 2026-03-01 · Based on Ready.gov, FEMA, AAA guidance
Vehicle Safety & Breakdown
Essentials for any roadside situation.
- Jumper cables or portable jump startercritical
A portable jump starter works without another vehicle — more reliable. Charge it every 6 months.
- Reflective warning triangles or road flares (3+)critical
Place 100–300 feet behind your vehicle. Required in many countries; recommended everywhere.
- Hi-visibility vest
Wear when exiting vehicle on a road or highway.
- Tire pressure gauge
- Can of Fix-a-Flat or portable tire inflator
For minor punctures. Not a substitute for a spare tire.
- Basic tool kit (screwdrivers, pliers, adjustable wrench)
- Duct tape and zip ties
Temporary repairs to hoses, trim, or wires.
- Tow strap or tow ropeoptional
Personal Safety & Survival
If stranded for hours or overnight.
- Water: 1 gallon per person (in insulated bottles in winter)critical
Plastic bottles freeze and crack. Use insulated stainless bottles in cold climates.
- Energy bars or non-perishable snacks (2 days per person)critical
Rotate every 6 months — heat cycles degrade food quickly in a car.
- Warm blanket (wool or emergency mylar)critical
If stranded overnight in cold weather, a blanket is life-saving. Keep in the trunk, not the back seat.
- Battery power bank (keep charged)critical
Do not rely solely on your car's USB ports — engine off means no charging.
- Flashlight with extra batteries or hand-crank flashlightcritical
- First aid kitcritical
- Rain poncho (1 per person)
- Change of clothes and sturdy shoes (per person)
If you have to walk from your vehicle.
- Work gloves
For debris clearance, tire changing, or general emergency use.
- Whistle and signal mirroroptional
For attracting attention if stuck off-road.
Navigation & Communication
- Printed local and regional mapscritical
Cell service and GPS fail during large-scale evacuations. Printed maps do not.
- List of emergency contacts printed (not only in phone)critical
- Cash in small bills ($100 minimum)critical
Card readers don't work when power is out. Gas stations may be cash-only during emergencies.
- Car charger / cigarette lighter USB adapter
- Portable NOAA weather radio (battery or hand-crank)
Winter Additions
Add these to your kit October–April in cold climates.
- Ice scraper and snow brushcritical
- Sand, kitty litter, or traction mats
Pour under stuck wheels for traction. Keeps 1–2 bags in the trunk.
- Small folding shovel
Dig out from snow.
- Hand warmers (10+ packs)
- Warm hat, gloves, and wool socks (extra set)critical
If stranded: run engine 10 min/hour, window cracked. Blankets and warm clothing are your primary heat.
- Keep gas tank at least half full throughout wintercritical
Prevents gas line freeze. Also ensures you can evacuate or run engine for warmth.
Summer Additions
Specific risks for summer and hot weather.
- Extra water (heat increases consumption; plastic jugs can degrade faster)critical
- Sunscreen (SPF 30+)
- Cooling towels
- Insect repellentoptional
- Emergency window breaker / seatbelt cuttercritical
For hot car escapes or post-accident seatbelt issues. Keep within reach, not in trunk.
Evacuation Readiness
- Physical copies of critical documents in waterproof bagcritical
- USB drive with digital document backups
- Know your 2+ evacuation routes from homecritical
- Pre-identified fuel stations on evacuation routes
Some may be closed or out of fuel. Know backups.
- Pet supplies if you travel with pets regularly
Detailed Guidance
If You're Stranded: Stay or Walk?
The general rule: stay with your vehicle unless doing so is immediately dangerous. Your car: - Is visible to rescuers - Provides shelter from wind, rain, and cold - Has lights and a horn for signaling - Has a radio for updates When to stay: - In a snowstorm (unless flooding threatens) - If you've called for help and help is coming - At night (visibility and temperature risks) - In unfamiliar terrain When to walk: - If your car is sinking in water (get out immediately) - If you're certain help won't come and you know where safety is nearby - If staying creates a safety hazard (e.g., car is in an active lane of traffic and can't be moved) Before walking: write your location, direction, and time on paper and leave it in the car.
Car Kit Maintenance Schedule
Set a calendar reminder twice a year (daylight saving time changes are a good trigger): Every 6 months: - Check and recharge portable jump starter - Replace food and water (especially in hot climates) - Check flashlight batteries - Verify first aid kit is complete - Check tire pressure gauge works Every year: - Replace blanket if stored in extreme temperature fluctuations - Verify maps are current - Update cash supply - Swap seasonal items (winter/summer additions) When seasons change: - Add/remove winter items (October and April roughly) - Adjust water quantity for temperature changes
Official Sources
Related Resources
Emergency Kit Calculator
Full household kit including car-specific supplies.
Evacuation Checklist with Pets
Car evacuation planning when pets are involved.
Winter Storm Checklist
Vehicle-specific winter storm preparation.
Flood Preparedness Checklist
Vehicle safety during floods.
Budget Emergency Kit
Affordable car kit building on a tight budget.
Emergency Contact Sheet
Keep a copy in your glove compartment.