What to Do When Your Car Gets Stranded in a Canadian Snowstorm | Quick Actionable Ideas and Survival Tips

CANADA — If your car becomes stuck in a blizzard or severe snowstorm and there is no immediate danger from traffic, fire or another hazard, STAY WITH YOUR VEHICLE. It provides shelter and is easier for searchers to find than a person walking through blowing snow. Call 911 when people are in immediate danger or urgent rescue is needed. Tell someone your exact road position, remain warm using your emergency kit, and never run an engine with a snow-blocked exhaust pipe.

Canada’s federal winter-storm guidance and Transport Canada both warn that stranded drivers can become lost or dangerously cold when they leave the vehicle. They also warn about carbon monoxide (CO)—an invisible, odourless gas that can enter a car if the exhaust is obstructed.

12 immediate actions — stranded car winter survival checklist

Stop somewhere as safe as conditions allow. Do not remain in a live traffic lane or vulnerable roadside position if you can reach a safer location without worsening the situation.
Call 911 if there is injury, life-threatening cold exposure, a dangerous collision or urgent rescue need. Give highway, direction, nearest town or marker and available GPS coordinates.
Stay in the vehicle when it is a safe shelter. Do not set off on foot across open land, fields or a dark road simply because a building seems nearby.
Make the car visible where safe. Use hazard lights or warning devices appropriately, but do not step into traffic to place equipment.
Put on warm layers. Use a hat, mittens, dry socks, insulated clothing and blankets from your winter emergency kit.
Check the exhaust pipe before running the engine, but only if you can do so safely. Never run it if snow or ice blocks the tailpipe or exhaust ventilation.
Ventilate if the engine is used. Canadian federal guidance advises opening a window slightly on the sheltered side and running the engine sparingly, only when the exhaust is clear.
Conserve fuel, battery power and warmth. Use approved hand and foot warmers and insulation rather than idling continuously.
Avoid heavy shovelling or pushing in bitter cold. Overexertion can cause dangerous cold exposure or cardiac problems.
Keep hands and feet moving gently. Periodic controlled movement may help comfort and circulation without causing heavy sweating.
Watch for hypothermia, frostbite and CO symptoms. Confusion, unusual sleepiness, slurred speech, chest symptoms or impaired breathing need urgent medical help.
Remain available to rescuers and follow instructions. Keep communication devices charged, monitor official road updates, and tell rescuers if you have to change your position.

If you are in a roadside emergency now, prioritise safety, the emergency call and safe shelter. The longer article explains how to avoid the most dangerous mistakes while help is coming.

Why staying with the car is usually safer than walking

The federal government’s Severe Storms — What to Do? guide says that in a blizzard, visibility in open areas can become so poor that people lose their way. A driver may see a barn, petrol station or farmhouse earlier in the day and assume it is an easy walk. Minutes later, blowing snow can hide the building and erase footprints.

A car provides some shelter from wind and is a recognisable object for roadside response or aerial search. It can hold extra clothing, water, food, communications and warning equipment. Walking away may mean that rescuers reach the car but cannot locate its occupants.

This is not a reason to remain in an unsafe vehicle under every condition. If the car is at risk of a collision, on a railway crossing, on fire, filling with dangerous exhaust, or otherwise unsafe, the immediate danger changes the decision. Call emergency services and follow their instructions for reaching a safer place. No generic article can identify the safest direction at every roadside accident.

Transport Canada specifically advises staying inside when the vehicle is not at risk of being hit by other drivers. That qualification is important on a highway shoulder or during a whiteout when approaching motorists may not see the stopped vehicle.

Do not attempt to walk to another building in a blizzard without a reliable safe route. Get Prepared Canada warns that people can lose their orientation very quickly, especially in flat, open countryside.

The first emergency call: which details help searchers?

In Canada, 911 is the appropriate number for urgent emergency assistance where the service is available. In isolated places without 911 or cellular coverage, the correct roadside emergency or satellite communication service may differ by location.

Give the highway number, direction of travel, nearest kilometre marker, exit, community, distinctive landmark and the number and condition of occupants. GPS coordinates or a shared location can help if the device supports them and you can provide them accurately.

Tell dispatch whether the car is stuck in a snowbank, off the roadway, involved in a crash or unable to move because the road is closed. State whether anyone has serious injuries, requires medication, is elderly or very young, or is becoming confused or unusually sleepy.

If you have cellular service, stay available for a callback. If you cannot connect, conserve power and use a registered emergency satellite messenger or compatible phone SOS feature if available. Do not repeatedly climb onto an exposed snowbank to improve reception when that creates a fall or cold-exposure hazard.

If you contact a roadside assistance or towing company, tell them whether emergency services have already been called and where the car is. Roadside assistance is not a replacement for 911 where a person is in immediate danger.

Carbon monoxide: the danger hidden in a warm engine

Carbon monoxide is a poisonous gas that cannot be detected reliably by smell. It can be produced by a petrol or diesel vehicle’s engine and may enter the cabin when the exhaust pipe is packed with snow or the vehicle is enclosed in a snow drift.

Transport Canada says to ensure the tailpipe is not blocked by snow. The federal Get Prepared winter-storm guidance adds that fresh air should be allowed in by opening a window slightly on the sheltered side when operating the engine.

The government brochure describes running an engine about ten minutes every half hour as a possible approach only when the exhaust system is clear, with the window slightly open for fresh air. This is not a guarantee of safety or a requirement to run the engine. Transport Canada also advises minimising engine use and relying on insulating clothing and safe warmers where possible.

If you cannot confirm safe exhaust ventilation, do not run the engine merely to heat the cabin. Inform emergency services that the vehicle is buried or the tailpipe may be blocked. Clearing snow outside is only appropriate if traffic, weather and other hazards make it safe to do so.

A cracked window alone does not compensate for a blocked exhaust. Turning the heater to a higher setting does not remove CO. A car can become dangerous even though the person inside feels physically warmer.

What are possible CO poisoning symptoms?

Headache, dizziness, nausea, unusual fatigue, confusion and impaired judgment can occur with CO exposure. Because CO cannot be smelled, people may mistake symptoms for tiredness or motion sickness. Tell emergency services if you suspect exposure.

If exhaust gas may be entering the vehicle, stop the engine and seek a safer environment according to the actual circumstances and dispatcher’s instructions. Do not keep idling in a buried car while waiting for symptoms to become severe.

Hybrid vehicles require care too: their petrol engine may start automatically while climate control is running. Electric vehicles powered solely by batteries do not produce engine exhaust from propulsion, but they still have cold-weather range and cabin heating limitations. Plan for the specific vehicle’s operating system.

How to keep warm without wasting fuel

Put on warm, dry clothing before becoming chilled. A hat or tuque, gloves or mittens, insulating layers, wind-resistant outerwear and warm socks reduce heat loss. Use the car’s blankets or sleeping bags if available. Insulate against cold seats or surfaces without obstructing seat belts where they remain needed.

Keep fingers and toes moving gently. You can flex ankles, clench and release hands and change position within the cabin when safe. This can improve comfort without heavy exertion or sweating.

Do not attempt intense indoor exercises that make you sweat heavily. Moist clothing can increase heat loss when you stop moving. Transport Canada’s winter driving guidance and Get Prepared Canada both discourage hard physical work in bitter cold.

Use commercially approved hand or foot warmers according to their instructions. Be careful about placing strong heat directly against skin, especially for people with reduced sensation. Do not use a charcoal burner, camping stove or improvised flame inside a vehicle for warmth.

A portable heater that burns fuel inside a small enclosed cabin can create both CO and fire hazards. Do not attempt an unapproved heating system simply because the engine cannot be run safely.

Children, older adults and people with medical needs

Infants and very young children need close monitoring because they cannot reliably say when they feel cold, weak or unwell. Keep them dry and protected without overheating their faces or obstructing breathing. Ask emergency dispatch for guidance if a child becomes unusually sleepy, limp or difficult to wake.

Older adults may become confused or weak in cold conditions, and people with circulation problems or other chronic illnesses may be more vulnerable to frostbite or hypothermia. A person requiring regular medication or medically powered equipment may need faster evacuation. Give those details early when requesting help.

If someone with diabetes, a heart condition or another illness has an individual emergency action plan, follow appropriate medical instructions and report symptoms. Do not attribute every change in behaviour to tiredness from a long trip.

Keep everyone together, including pets, if the vehicle remains the designated safe shelter. Do not send children along the road or through snow to find help. If a person is separated, provide the last confirmed location and description to responders.

What is hypothermia and when is it an emergency?

Hypothermia occurs when the body loses heat faster than it can maintain a safe internal temperature. Warning signs may include shivering, confusion, poor coordination, slurred speech and unusual drowsiness. Shivering may decrease as the condition becomes more severe, so a person who has stopped complaining of cold is not necessarily improving.

If serious hypothermia is suspected, seek urgent medical assistance. Prevent further heat loss using dry insulation, shelter from wind and gentle handling. Do not force a weak or confused person to walk vigorously to “warm up”.

Do not give alcohol. A warm non-alcoholic drink may be appropriate for someone fully awake and able to swallow safely, but never force liquids on an unconscious or severely confused person. Follow emergency dispatch or clinician instructions for cold-injury management.

If a person becomes unresponsive and is not breathing normally, follow 911 guidance for CPR. Do not decide that a very cold person is beyond help merely because they appear unresponsive.

Frostbite: avoid rubbing or rapid improvised heating

Frostbite damages skin and tissue after extreme cold exposure. Fingers, toes, ears and nose are commonly affected. A person may report numbness or have pale or waxy-looking skin. Seek medical advice, especially for persistent numbness or changes in skin colour.

Do not rub or massage frozen skin, and do not put it against a direct fire, heating element or extremely hot surface. Reduced sensation can allow burns. Protect the area from further cold and follow medical advice about safe rewarming.

Avoid removing boots or gloves outdoors if doing so will expose skin to severe cold unnecessarily. Use a sheltered space for care when possible. A serious frostbite concern should be reported to responders alongside any suspected hypothermia.

Snow shovelling: when helping yourself can become dangerous

It may be possible to clear a small amount of snow from a wheel or exhaust area and drive out, but do not start heavy shovelling without assessing your own health and the weather. Shovelling in severe cold can trigger cardiovascular strain, sweating, exhaustion and dangerous exposure.

The government of Canada warns that heavy lifting, pushing and vigorous shovelling in bitter cold can be deadly. A person who feels exhausted, develops chest pain or becomes dizzy should stop and seek medical help.

Do not shovel while standing in a live traffic lane or between a vehicle and moving traffic. If the snowbank places the car in danger of another collision, let emergency or road crews control the scene. The potential benefit of freeing the car does not justify causing an injury.

If a vehicle is deeply buried, untrained attempts to tow it with another ordinary car can create additional damage or danger. Use an authorised towing or road-rescue service when appropriate.

How to make the vehicle visible to rescuers

Keep hazard lights on when appropriate for the road situation, but remember that electricity use can run down the battery. Federal winter-driving guidance recommends warning lights, reflectors or other devices if they can be used safely, and using interior lighting to help a searcher spot the car without continuously running the headlights.

Do not walk far down a blizzard-covered road to place a reflective triangle if the shoulder is unsafe. A stranded driver can be struck by traffic or become lost within a short distance. Visibility equipment is only helpful when deploying it does not create a larger risk.

If you have a brightly coloured cloth, it may be possible to display it visibly from the vehicle without leaving a dangerous location. Follow emergency dispatch instructions about remaining in place and making the car identifiable.

Snow can quickly cover a stationary vehicle, so continue to report your precise location when safely possible. If you are moved by a recovery crew or emergency responder, tell the party coordinating the original rescue to avoid an unnecessary search.

What to do if the engine will not start

If the engine has failed, you may have no cabin heating or vehicle charging. Your priorities become shelter, dry insulation, safe communications and the condition of each occupant.

Do not repeatedly crank a weak starter until the battery is completely flat unless there is a clear safe plan. A completely discharged battery may remove useful communications or hazard lighting. Seek appropriate roadside assistance or rescue and explain the situation.

Do not use unapproved fuel-burning equipment inside the cabin. Portable battery packs, approved warmers and insulating layers are preferable when available. A 12-volt device can still drain the vehicle battery, so manage it cautiously.

If the car is at immediate risk from approaching traffic or another hazard, tell emergency dispatch; staying in place is not always safe. Seek professional guidance for the safest movement.

What if you can see a house or business nearby?

A nearby light does not guarantee that the path is safe. In blowing snow, distances and direction can be deceptive, and open ditches or deep drifts may be hidden. A person can lose sight of the vehicle and the building after only a short walk.

Get Prepared Canada warns that during a blizzard, people should not try to walk to another building unless they have a reliable guide such as a safety line or something definite to follow. If a safe connection does not exist, staying inside the vehicle may be safer.

If emergency services specifically instruct you to move to a building or a responder is escorting the occupants, follow that plan. Do not depart without telling the dispatch or recovery service if a search is already underway.

Province-specific roads, 511 services and closures

Many Canadian provinces provide 511 road-condition services, but the precise website, coverage, phone arrangements and reporting system vary. Look up the official road and highway information for the province or territory before travelling.

Environment and Climate Change Canada issues winter-storm, snowfall, blizzard, freezing-rain and extreme-cold alerts. A forecast warning can explain why roads are becoming unsafe, but it does not establish the exact condition of a particular highway kilometre.

When roads are officially closed, do not drive past barricades to save time or reach a planned hotel. A closure may be imposed because of black ice, collisions, deep drifting snow or visibility below safe thresholds.

Transport Canada recommends avoiding winter travel when severe storms are occurring and checking weather and road conditions before departure. Postponing a nonessential trip is better than creating a roadside emergency.

Four common situations and the safest response

You slide into a snowbank on a rural prairie highway

If the vehicle is safe from traffic, stay inside, contact emergency or roadside support as appropriate and give a precise highway location. Keep warm, make yourself visible from safety and run the engine only when exhaust ventilation is confirmed clear.

Heavy snow buries the back of your car

Do not run the engine with an obstructed tailpipe. If it is unsafe to go outside to clear the exhaust, do not attempt it. Tell rescuers about the obstruction and use insulation and other safe warming methods.

A child becomes unusually sleepy and difficult to wake

This is a medical warning. Call emergency services, describe cold exposure and any other symptoms, and follow instructions for safe warming and monitoring. Do not assume the child only needs a nap.

Your car is stranded beside an active traffic lane

Traffic risk may outweigh the normal advice to remain inside. Contact 911 for immediate danger and follow emergency directions. Do not step out into the lane or set out warning devices where passing vehicles can strike you.

Mistakes that can make a blizzard emergency worse

Do not leave the car to walk blindly towards distant lights.
Do not run an engine with a snow-blocked tailpipe.
Do not assume a cracked window makes a blocked exhaust safe.
Do not keep the engine idling continuously to avoid using blankets.
Do not perform vigorous shovelling or pushing in extreme cold.
Do not use charcoal, camping stoves or unapproved fuel heaters inside the vehicle.
Do not take off dry insulating clothes merely to move around more easily.
Do not assume confusion or reduced shivering means someone is improving.
Do not stand in live traffic to install warning triangles or check the bumper.
Do not leave a vehicle without updating rescuers when a search is underway.

Prepare a Canadian winter driving emergency kit

Carry warm clothing, spare mittens, a tuque, dry socks and suitable insulated footwear.
Keep blankets, sleeping bags or other insulation within reach.
Store drinking water and non-perishable food appropriate for freezing conditions.
Carry a flashlight, charged power bank, emergency contacts and a suitable communication method.
Include a shovel, ice scraper, snow brush, traction aids and other appropriate winter driving supplies.
Maintain the vehicle, brakes, tyres, fuel or charging system and windshield washer fluid.
Check weather alerts and the official provincial or territorial road information before departure.
Tell someone the route, expected arrival and when to raise the alarm if you do not arrive.
Avoid unnecessary night travel, remote shortcuts and closed routes during storms.
Learn how to identify a blocked tailpipe and the signs of hypothermia and CO poisoning.

Frequently asked questions

Should I stay inside the car if stranded in a Canadian blizzard?

Usually yes if the vehicle itself is not in immediate danger. Transport Canada says the car provides shelter and is easier to find than a person walking into a storm.

Can I leave the engine running for heat?

Only if exhaust ventilation is safe and the tailpipe is fully clear of snow and ice. Federal guidance advises running the engine sparingly with a slightly opened sheltered-side window. Never run it with a blocked exhaust.

How often should I start the engine?

Get Prepared Canada describes about ten minutes per half hour as a possible approach when the exhaust is clear and adequate fresh air is provided. It is not a guarantee of safety or a fixed requirement. Follow your vehicle and emergency responder advice.

What if the tailpipe is buried?

Do not run the engine. Clear the obstruction only when it is safe to go outside, or ask the rescue service for assistance.

Should I walk to a farmhouse that looks close?

Not during a whiteout unless a genuinely safe, reliably guided route exists or responders direct you there. People can lose their way rapidly in blowing snow.

What symptoms suggest hypothermia?

Shivering, confusion, poor coordination, slurred speech and unusual sleepiness may be warning signs. Seek urgent medical attention when severe symptoms occur.

What emergency number do I call in Canada?

Call 911 where available for immediate danger or urgent rescue. Remote areas may need a local emergency or satellite communication method.

Remember the survival sequence

Stay with a safe vehicle. Tell rescuers exactly where you are. Keep warm without overexertion. Never run an engine with blocked exhaust. Ventilate appropriately, conserve supplies, monitor everyone and follow emergency instructions.

Official Canadian sources

Independent Canadian winter-driving guide. Checked 6 November 2026. This article is not a real-time road closure map. Vehicle conditions and provincial guidance vary; emergency dispatch and road authorities take priority.