There is a coolant temperature warning light on the instrument panel. See Engine Coolant Temperature Warning Light on page 5-20.
If Steam is Coming from the Engine
Warning
Steam from an overheated engine can cause serious injury, even if the hood is opened just a little.
Stay away from the engine if steam is seen or heard coming from it. Just turn it off and get everyone away from the vehicle until it cools down. Wait until there is no sign of steam or coolant before opening the hood.
If driving continues when the engine is overheated, the liquids in it can catch fire. Someone could get badly burned. Stop the engine if it overheats, and get out of the vehicle until the engine has cooled.
Caution
Running the engine without coolant may cause damage or a fire. Vehicle damage would not be covered by the vehicle warranty.
If No Steam is Coming from the Engine
If there is an engine overheat warning, but no steam can be seen or heard, the problem may not be too serious. Sometimes the engine can get a little too hot when the vehicle:
If there is an overheat warning with no sign of steam, try this for a minute or so:
If the overheat warning is no longer on, the vehicle can be driven. Just to be safe, drive slowly for about 10 minutes. If the warning does not come back on, drive normally.
If the warning continues and the vehicle is not stopped, pull over, stop, and park the vehicle right away.
If there is still no sign of steam, idle the engine for three minutes while parked. If the warning continues, turn off the engine and get everyone out of the vehicle until it cools down.
The decision may be made to not lift the hood but to get service help right away.
Chevrolet Captiva Service & Repair Manual > Battery Replacement: Battery Cable Terminal End Service
Caution: Use protective gloves
and eye protection.
Caution: Perform procedure
in a well ventilated area.
Caution: Refer to cautions
and warnings listed on battery.
Caution: Do not allow baking
soda solution to enter vent holes, as damage ...