ZestyHabit

A flooded car can turn from a transportation problem into a life-threatening emergency within minutes—or even seconds. Heavy rain may cover a familiar road, flash flooding may surround a parked vehicle, or a car may leave the roadway and enter deep water. In each situation, making the wrong decision can reduce your chance of escape.

One reason vehicle-flood emergencies are so dangerous is that people often underestimate water. A road may look passable, especially when another vehicle has already crossed it. Inside a stranded car, meanwhile, drivers may focus on saving the vehicle, calling family members, or collecting belongings instead of responding to the immediate threat.

Knowing what not to do when your car is flooded can help you make faster, safer decisions.

First, Understand the Three Different Flooded-Car Situations

Flood-safety advice can sound contradictory because the correct response depends on what is happening:

• If you encounter water covering the road, do not enter it. Turn around.
• If your vehicle is already trapped in rapidly moving floodwater, remaining inside may initially provide more protection than stepping into the current. Call 911, and move onto the roof if water begins rising inside.
• If your car has plunged into deep water and is actively sinking, escape through a window as quickly as possible.

These situations should not be treated as interchangeable. Observe whether the water is moving, whether the vehicle is stable, and whether a safe route to higher ground exists.

1. Do Not Drive Into a Flooded Road

The most important mistake to avoid is entering floodwater in the first place.

Drivers commonly assume they can estimate the depth by looking at nearby curbs, road signs, or other vehicles. Muddy water can hide a washed-out road, missing bridge, open manhole, sharp debris, or downed electrical lines. It may also be deeper in the center than it appears from your position.

According to the National Weather Service, about 12 inches of rushing water can carry away many cars, while approximately two feet can carry away SUVs and trucks. Even shallower water can cause a vehicle to lose traction, stall, or become difficult to steer.

When you reach a flooded section of road:

• Stop before entering the water.
• Turn around using a safe driveway, parking area, or side road.
• Choose another route or wait on higher ground.
• Follow road closures and official evacuation instructions.

Being late is inconvenient. Becoming trapped in moving water is an emergency.

2. Do Not Assume a Large Vehicle Can Cross Safely

Pickup trucks and SUVs may sit higher than small passenger cars, but ground clearance does not make them floodproof. Fast-moving water pushes against the entire side of a vehicle. As water rises, tires lose contact with the road and the vehicle begins acting more like a floating object than a heavy machine.

Four-wheel drive may help with traction on mud, snow, or loose surfaces. It cannot prevent a floating vehicle from being swept downstream.

Do not enter because another truck made it across. Conditions can change rapidly, and the road beneath the water may continue eroding. The vehicle ahead may also have narrowly avoided a hazard you cannot see.

3. Do Not Drive Around Barricades

A flood barricade is not a suggestion. Emergency crews may have closed the road because of fast water, damaged pavement, a collapsed culvert, or a bridge problem that is invisible from the driver’s seat.

Driving around a barricade also puts rescuers at risk. A preventable vehicle rescue can require firefighters or other emergency personnel to enter contaminated, debris-filled water.

The National Weather Service advises drivers never to go around barriers blocking flooded roads. Its flood guidance also notes that water can conceal electrical wires, chemicals, sharp objects, and washed-out surfaces. When a road is closed, find another route.

4. Do Not Wait in a Stable Vehicle Until Escape Becomes Impossible

If slow-rising water begins surrounding a parked or stalled car and there is a clearly safe, shallow path to nearby higher ground, leaving early may be safer than waiting until the current strengthens. Take everyone with you and move away from drainage channels, underpasses, riverbanks, and other low areas.

However, do not step out if the vehicle is already being struck or carried by rapidly moving water. Ready.gov’s flood guidance advises people trapped in a vehicle by fast-moving water to stay inside initially. If water starts rising inside the passenger compartment, move onto the roof and call for rescue.

This distinction matters: leaving early across a safe path is very different from stepping directly into a powerful current.

If you are uncertain, call 911, share your exact location, describe the movement and level of the water, and follow the dispatcher’s instructions.

5. Do Not Try to Drive Once the Vehicle Is Floating

When a vehicle begins floating, steering, braking, and accelerating may no longer control its direction. Spinning the tires or revving the engine will not restore contact with the road. It could move the vehicle into deeper water or waste valuable escape time.

Stop treating the situation like an ordinary breakdown. Focus on survival:

• Call 911 if you can do so without delaying an urgent escape.
• Turn on hazard lights if the electrical system still functions.
• Share your location through your phone.
• Keep occupants calm and together.
• Follow emergency instructions.
• Move to the roof if water is entering a vehicle trapped in rapid current.

Do not climb down from the roof simply because land appears close. Moving water strong enough to carry a car can easily knock a person down.

6. Do Not Waste Time Collecting Belongings

Phones, wallets, bags, cameras, laptops, and important documents can be replaced. The window of time for escaping a sinking vehicle cannot.

If the car has entered deep water and is actively sinking, your priorities are:

1. Release your seat belt.
2. Open a side window immediately.
3. Release children from their restraints.
4. Help children and other passengers through the window.
5. Exit through the window.

The current Indiana Driver’s Manual similarly advises occupants of a vehicle that plunges into water to remove their seat belts, open a window, help children out, and leave through the window.

Do not make a phone call before opening the window if the car is sinking rapidly. Activate an emergency call by voice or use a phone after reaching the surface when possible. Once outside, never reenter the vehicle for possessions.

7. Do Not Make the Door Your First Escape Route

Opening a door may seem natural, but water pressure can make it extremely difficult once the water outside has risen. If the door does open, incoming water can rapidly flood the passenger compartment and destabilize the vehicle.

Use the side window as your primary exit from a sinking car. Try the power window immediately while the electrical system is still functioning. Do not wait for the cabin to fill in the hope that pressure will eventually equalize. Although a door might become easier to open after the interior is nearly full, waiting until then leaves very little air and makes orientation much harder.

The New York State Driver’s Manual recommends releasing the seat belt and escaping through a window while the vehicle is still floating.

8. Do Not Assume Any Glass-Breaking Tool Will Break Every Window

A compact seat-belt cutter and window-breaking tool can be valuable, but it should not create false confidence. Most windshields are laminated and designed to remain together after impact. Some modern vehicles also use laminated glass in side windows, which may resist tools intended for tempered glass.

Federal vehicle-safety documents note that common glass-breaking tools may work on tempered side windows but may not quickly create an exit through laminated side glass. Check your vehicle’s window markings in advance. Glass may be labeled “tempered” or “laminated” near a corner.

Store an emergency tool securely within reach of the driver—not in the trunk or underneath loose luggage. If a powered side window will not open, use a suitable tool on a breakable tempered side or rear window according to its instructions. Do not spend critical time repeatedly striking a laminated windshield.

9. Do Not Enter Floodwater to Rescue the Car—or Another Driver

Watching a vehicle drift away can trigger an instinct to chase it. Never enter floodwater to save an empty vehicle. Property is not worth being swept into a drain, river, culvert, or debris field.

Bystanders should also avoid wading or swimming toward an occupied vehicle. Six inches of fast-moving water can knock an adult off their feet, according to National Weather Service flood-safety guidance. The current may contain broken glass, metal, sewage, fuel, chemicals, or live electrical hazards.

Instead:

• Call 911 immediately.
• Give the vehicle’s location and direction of travel.
• Describe the number of occupants.
• Throw a flotation device or rope only if you can do so from a secure location.
• Follow the dispatcher’s instructions.
• Do not become a second person who needs rescue.

10. Do Not Restart a Flood-Damaged Vehicle

Once the water recedes, the danger may appear to be over. That does not mean the vehicle is safe to start.

Water may have entered the engine, transmission, air intake, fuel system, brakes, wiring, control modules, or safety systems. Attempting to start an internal-combustion engine with water in its cylinders can cause severe mechanical damage. Electrical faults can also produce heat, sparks, or fire.

Do not:

• Turn the ignition on “just to check.”
• Attempt a jump-start.
• charge the vehicle’s battery.
• Drive away because the interior looks dry.
• Crawl beneath an unstable, water-damaged vehicle.
• Disconnect high-voltage components yourself.

Arrange professional towing and inspection. Photograph the water line and damage from a safe location, then contact your insurer before cleaning or dismantling the vehicle.

Special Warning for Flooded Electric and Hybrid Vehicles

Flood-damaged lithium-ion batteries require extra caution, particularly after saltwater exposure. Battery damage may create a fire risk immediately or later, even when the vehicle initially appears normal.

The EPA advises that flooded electric and hybrid vehicles should be moved by pushing or towing rather than being turned on and should be professionally inspected before driving. Damaged batteries may become hot, smoke, or make unusual noises, although visible warning signs are not always present. The agency also advises keeping flooded battery-powered vehicles away from homes and garages because of possible fire risk.

If an electric or hybrid vehicle has been submerged:

• Do not start or charge it.
• Do not touch high-voltage cables or damaged battery components.
• Keep people away if you see smoke, bubbling, sparks, or unusual heat.
• Call 911 if the vehicle is smoking or burning.
• Tell the towing company and insurer that it is an electrified vehicle exposed to floodwater.

Do not attempt to repair, disconnect, or remove the high-voltage battery yourself.

Do Not Ignore Floodwater Contamination

Water inside a vehicle may contain sewage, fuel, pesticides, industrial chemicals, bacteria, or sharp debris. Do not let children or pets enter the vehicle after the flood. Avoid touching wet materials with bare hands, and do not sit on waterlogged seats merely to retrieve something.

If you must approach the car after authorities declare the area safe, wear appropriate gloves and waterproof footwear. Wash exposed skin afterward. Professional cleaning may be necessary, and materials contaminated with sewage or chemicals may need to be discarded.

Prepare Before the Next Storm

A few preparations can reduce confusion during a flooded-car emergency:

• Learn which side or rear windows are tempered.
• Mount a seat-belt cutter and compatible glass tool within reach.
• Enable emergency location sharing on your phone.
• Discuss a simple escape plan with family members.
• Teach older children how to release their seat belts.
• Monitor weather alerts before driving.
• Avoid underpasses, low-water crossings, and flood-prone roads during heavy rain.
• Park on higher ground when flooding is forecast.
• Keep your gas tank charged or fueled enough to evacuate early.

Preparation is not about assuming you can drive through dangerous conditions. Its purpose is to help you avoid floodwater and respond quickly if an unexpected situation develops.

The safest flooded-car emergency is the one you prevent by turning around before entering the water. If you become trapped, identifying whether the car is stable in moving floodwater or actively sinking will guide your next move—but saving the vehicle or your belongings should never take priority over saving lives. Have you ever encountered a flooded road while driving, and what made you decide whether to stop or turn around? Share your experience and flood-safety tips in the comments so other drivers can learn from them.