Can You Still Drive When the Coolant Warning Light Comes On?

[MacEden]

Here are the reasons for the coolant warning: 1. Overheating: If the coolant warning is caused by engine overheating, it's best to pull over, keep the engine idling, open the hood, and let it cool down until the temperature warning light goes off. 2. Low Coolant Level: If the issue is due to low coolant level and you don't have coolant available for immediate refill, you can add an appropriate amount of purified water, preferably soft water (distilled water). Do not use hard water like tap water, and avoid adding too much as it may alter the coolant's boiling point.