2013 Buick LaCrosse Owner Manual - Page 281

Vehicle Care 4. With the coolant surge tank cap off, start the engine and let it run until the upper radiator hose starts getting hot. Watch out for the engine cooling fans. By this time, the coolant level inside the coolant surge tank may be lower. If the level is lower, add more of the proper mixture to the coolant surge tank until the level reaches the mark pointed to on the front of the coolant surge tank. 5. Replace the cap tightly. Notice: If the pressure cap is not tightly installed, coolant loss and possible engine damage may occur. Be sure the cap is properly and tightly secured. See Engine Coolant Temperature Warning Light on page 5‑22 for more information. 3.6L V6 Engine There is a coolant temperature gauge and a engine coolant temperature warning light on the instrument cluster that indicate an overheated engine condition. See Engine Coolant Temperature Gauge on page 5‑13 and Engine Coolant Temperature Warning Light on page 5‑22 for more information. If the decision is made not to lift the hood when this warning appears, get service help right away. See Roadside Assistance Program (U.S. and Canada) on page 13‑7 or Roadside Assistance Program (Mexico) on page 13‑9. If the decision is made to lift the hood, make sure the vehicle is parked on a level surface. Then check to see if the engine cooling fans are running. If the engine is overheating, the fans 10-21 should be running. If not, do not continue to run the engine and have the vehicle serviced. Notice: Engine damage from running the engine without coolant is not covered by the warranty. If Steam Is Coming from the Engine Compartment See Overheated Engine Protection Operating Mode on page 10‑22 for information on driving to a safe place in an emergency. If No Steam Is Coming from the Engine Compartment If an engine overheat warning is displayed but no steam can be seen or heard, the problem might not be too serious. Sometimes the engine can get a little too hot when the vehicle: ... Engine Overheating 2.4L L4 Engine There is a engine coolant temperature warning light on the instrument cluster that indicates an overheated engine condition. Climbs a long hill on a hot day. Stops after high-speed driving. Idles for long periods in traffic.