2009 Pontiac Solstice Owner's Manual - Page 228

Checking Coolant The vehicle must be on a level surface when checking the coolant level. drinkable water and DEX-COOL® coolant at the coolant surge tank, but be sure the cooling system is cool before this is done. See Engine Coolant Engine Coolant for more information. The vehicle must be on a level surface. When your engine is cold, the coolant level should be at the COLD FILL line. Do not overfill the surge tank. Too much coolant can result in an overflow condition when the fluid is hot. How to Add Coolant to the Surge Tank { CAUTION: 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. Notice: This vehicle has a specific coolant fill procedure. Failure to follow this procedure could cause the engine to overheat and be severely damaged. The coolant surge tank is located in the engine compartment on the driver's side of the vehicle. See Engine Compartment Overview on page 5-12 for more information on location. Check to see if coolant is visible in the coolant surge tank. If the coolant inside the coolant 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 FULL COLD mark, add a 50/50 mixture of clean, 5-26