Changes You May Notice
Tires
As the outside temperature drops, so does tire inflation pressure. Make sure each tire is filled to the vehicle manufacturer’s recommended inflation pressure, which is in your owner’s manual and on a label located on the driver's side door frame. Do not inflate your tires to the pressure listed on the tire itself. That number is the maximum pressure the tire can hold, not the recommended pressure for your vehicle.
Some other tips:
- Inspect your tires at least once a month and before long road trips.
- It’s best to check the tires when they’re cold, meaning that they have not been driven on for at least three hours.
- Check each tire’s age. Some vehicle manufacturers recommend replacing tires every six years regardless of use.
- An inspection is not just about checking tire pressure and age. Remember to check:
- for any damage or conditions that may need attention;
- the tread and sidewalls for any cuts, punctures, bulges, scrapes, cracks, or bumps. The tread should be at least 2/32 of an inch or greater on all tires; and your spare tire.
- If you find tire damage, take your vehicle to a tire service professional.
Consider installing snow tires, but before buying new tires, visit NHTSA’s Tires page to review tire safety ratings. The Uniform Tire Quality Grading System (UTQGS) lets you compare tire treadwear, traction performance, and temperature resistance.
Car Seats
Side by side of children in car seat, one in puffy coat, one not.In colder weather, parents typically dress their children in winter coats. But it’s important to know that heavy coats can interfere with the proper harness fit on a child in a car seat. When your child will be secured in a car seat, pick thin, warm layers, and place blankets or coats around your child after the harness is snug and secure for extra warmth.
Also, make sure car seats and booster seats are properly installed and that any children riding with you are in the right seat for their ages and sizes. See NHTSA’s child passenger safety recommendations to find the right seat for your child’s age and size. You can visit NHTSA’s Child Car Seat Inspection Station Locator to find a free car seat inspection site near you, or to get information on virtual inspections.
Batteries
When the temperature drops, so does battery power. In cold weather, gasoline and diesel engines take more battery power to start, and electric and hybrid-electric vehicles’ driving range can be reduced. Have a mechanic check your battery, charging system, belts, and for any other needed repairs or replacements.
Safety Technologies
Familiarize yourself with the safety technologies on your vehicle and how they perform in wintry conditions. Know whether your vehicle has an antilock brake system and learn how to use it properly. Antilock brake systems prevent your wheels from locking up during braking. If you have antilock brakes, apply firm, continuous pressure to the brake pedal. If you don’t have antilock brakes, you may need to pump your brakes if you feel your wheels starting to lock up. For more information on driver assistance technologies, visit NHTSA.gov/DriverAssistTech.
Floor Mats
Due to slushy winter conditions, you might consider switching out your usual floor mats for thicker material or rubbery ones. Improperly installed floor mats in your vehicle could interfere with the operation of the accelerator or brake pedal, increasing the risk of a crash. Follow the manufacturer’s instructions for mat installation and use retention clips to secure the mats. Always use mats that are the correct size and fit for your vehicle.
Preparing Your Vehicle
Lights
Check your headlights, brake lights, turn signals, emergency flashers and interior lights. Be sure to also check your trailer brake lights and turn signals, if necessary.
Windshield Wipers
You can quickly go through a lot of windshield wiper fluid in a single snowstorm. Make sure your vehicle’s reservoir is full of high-quality “winter” fluid with de-icer before winter weather hits. Make sure defrosters and all windshield wipers work and replace any worn blades. Consider installing heavy-duty winter wipers if you live in an area that gets a lot of snow and ice.
Cooling System
Make sure you have enough coolant in your vehicle, and that it meets the manufacturer’s specifications. See your vehicle owner’s manual for recommendations. Check the cooling system for leaks, test the coolant, and drain or replace the old coolant.
You may also want to visit your mechanic for a tune-up and ask them to check for leaks, badly worn hoses, or other needed parts, repairs, and replacements.
Source: nhtsa.gov
