Every vehicle should have an emergency supply kit in the trunk. Kits should be checked every six months, and expired items should be replaced regularly. Vehicle emergency supply kits should include:
A properly inflated spare tire, wheel wrench and tripod jack
Jumper cables
Tool kit and/or a multipurpose utility tool
Flashlight and extra batteries
Reflective triangles and brightly colored cloth to make your vehicle more visible
Compass
First aid kit with gauze, tape, bandages, antibiotic ointment, aspirin, a blanket, nonlatex gloves, scissors, hydrocortisone, thermometer, tweezers and instant cold compress
Nonperishable, high-energy foods, such as unsalted nuts, dried fruits and hard candy
Drinking water
Reflective vest in case you need to walk to get help
Car charger for your cell phone
Fire extinguisher
Duct tape
Rain poncho
Additional items for cold weather include a snow brush, shovel, windshield washer fluid, warm clothing, cat litter for traction and blankets
It's also a good idea to keep family and emergency phone numbers, including your auto insurance provider and a towing company, in your phone.