2015 Cadillac XTS Owner Manual - Page 286

Vehicle Care Caution (Continued) mixture can freeze and crack engine cooling parts. The repairs would not be covered by the vehicle warranty. Use only the proper mixture of engine coolant for the cooling system. See Recommended Fluids and Lubricants on page 11-13. Never dispose of engine coolant by putting it in the trash, pouring it on the ground, or pouring into sewers, streams, or bodies of water. Have the coolant changed by an authorized service center, familiar with legal requirements regarding used coolant disposal. This will help protect the environment and your health. 10-17 Checking Coolant The vehicle must be on a level surface when checking the coolant level. The engine coolant surge tank and CAC bottle are in the engine compartment on the driver side of the vehicle. See Engine Compartment Overview on page 10-5. Check to see if coolant is visible in the surge tank and CAC bottle. If the coolant inside the surge tank is boiling, do not do anything else until it cools down. If coolant is visible but the coolant level is not at or above the mark pointed to on the surge tank or at the CAC bottle COLD FILL mark, add a 50/50 mixture of clean, drinkable water and DEX-COOL coolant. Be sure the cooling system is cool before this is done. If no coolant is visible in the coolant surge tank or CAC bottle, add coolant as follows: How to Add Coolant to the Surge Tank { Warning You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Do not spill coolant on a hot engine. { Caution This vehicle has a specific coolant fill procedure. Failure to follow this procedure could cause the engine to overheat and be severely damaged.