1997 Pontiac Grand Prix Owner's Manual - Page 298

Checking Coolant If this lightcomes on, it means you're low on engine coolant. LOW COOLANT Adding Coolant If you need more coolant, add the proper DEX-COOL" coolant mixture at the mulant recovery tank. When your engine is cold, the coolant levelshould be at the COLD mark or a little higher. To check coolant level, remove the capon the coolant recovery bottle and verify that the coolant level is up to the COLD fill level on the hose attached to the cap. If the coolantrecovery tank is completely empty, add coolant to the radiator. (See "Engine Overheating" in the Index.) 6-28