An overheating engine needs immediate attention. Rising temperature, steam, a hot smell, or a warning message are signs to act safely.
Pull over safely
Turn off the air conditioner, use the heater only if it helps you reach a safe stopping place, and pull over as soon as conditions allow. Shut the engine off if the warning persists.
Never open a hot cooling system
Do not remove a radiator cap or coolant reservoir cap while the engine is hot. Pressurized hot coolant can cause severe burns.
After the engine cools
Check the coolant reservoir only as directed by the owner’s manual and look for visible leaks. Repeated overheating needs professional diagnosis.