1994 Buick Park Avenue Owner's Manual - Page 250

Adding Coolant COOLANT LOW If this light comes on, it means you're low on engine coolant. To Add Coolant The coolant recovery tank is located at theleft of the engine compartment. If you need more coolant, add the proper mix at the coolant recovery tank. To Check Coolant When your engine is cold, the coolant level should be at "FULL COLD' or a little higher. When your engine is warm, the level should be up to "FULL HOT" or a little higher. 248