What to do when temperature warning comes on?

Answered by Jason Smith

When the temperature warning light comes on in your vehicle, it is crucial to take immediate action to prevent further damage to your engine. Here are the steps you should follow:

1. Stay calm and stay safe: When the temperature warning light illuminates, it is vital to remain calm and focused. Safely pull over your vehicle to the side of the road or a safe location away from traffic. It is important not to panic or continue driving with an overheating engine, as this can cause severe damage.

2. Turn off the engine: Once you have safely pulled over, turn off the engine immediately. This will help prevent any additional heat buildup and minimize the risk of further damage. Allow the engine to cool down for at least 20 minutes before proceeding.

3. Pop the hood: After the engine has cooled down, carefully open the hood of your vehicle. Be cautious as the engine may still be hot, so use a cloth or gloves to protect your hands. Opening the hood will allow the heat to dissipate more quickly and aid in the cooling process.

4. Check the coolant level: Once the engine has cooled down sufficiently, check the coolant level in the radiator and the coolant reservoir. The coolant is responsible for regulating the engine’s temperature, so if it is low or empty, it may be the cause of the overheating. If the coolant level is low, you can add more coolant, but make sure to follow the manufacturer’s instructions.

5. Inspect for leaks: While checking the coolant level, also inspect for any visible leaks in the cooling system. Look for signs of coolant dripping or pooling under the vehicle. Leaks can cause a loss of coolant, leading to overheating. If you spot a leak, it is advisable to seek professional assistance or contact a roadside assistance service.

6. Check the radiator fan: The radiator fan helps to cool down the engine by drawing air through the radiator. Ensure that the fan is functioning correctly by visually inspecting it. If the fan is not spinning or making unusual noises, there may be an issue with the fan motor or its electrical components.

7. Seek professional help if needed: If you are unable to identify the cause of the overheating or if the temperature warning light continues to illuminate after taking the above steps, it is recommended to seek professional help. Contact a reputable mechanic or a towing service to have your vehicle inspected and repaired.

Remember, driving with an overheating engine can cause severe damage and may lead to expensive repairs. It is always better to err on the side of caution and address the issue promptly to avoid further complications.

Personal experience: I encountered a similar situation while on a road trip last summer. As I was driving through a remote area, the temperature warning light suddenly turned on. I immediately pulled over to a safe spot and turned off the engine. After waiting for the engine to cool down, I inspected the coolant level and found it to be significantly low. Luckily, I had a spare bottle of coolant in my trunk, so I topped it up. However, the warning light persisted, so I decided to call for roadside assistance. The mechanic arrived promptly and identified a faulty thermostat as the root cause of the overheating. They replaced the thermostat, and I was able to continue my journey without any further issues. It was a valuable lesson in the importance of addressing temperature warnings promptly and seeking professional help when needed.