Even a well-maintained vehicle can break down, so it’s advisable to put together an emergency roadside kit to carry with you. A cell phone tops the list of suggested emergency kit contents since it allows you to call for help when and where you need it. Suggested emergency roadside kit contents: 

• Cell phone 
• First aid kit 
• Flashlight 
• Flares and a white flag
• Jumper cables 
• Jack (and ground mat) for changing a tire 
• Work gloves and a change of clothes 
• Basic repair tools and some duct tape (for temporarily repairing a hose leak!) 
• A jug of water and paper towels for cleaning up 
• Nonperishable food, drinking water, and medicines 
• Extra windshield washer fluid 
• Maps 

Source: NHTSA