2004 Saturn Ion Owner's Manual - Page 259

Adding Coolant If you need more coolant, add the proper DEX-COOL coolant mixture at the surge tank, but only when the engine is cool. See Cooling System on page 5-32 for instructions on how to add coolant to the coolant surge tank. ® Coolant Surge Tank Pressure Cap 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. If you replace your coolant surge tank pressure cap, a Saturn cap is required. {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. When replacing the pressure cap, make sure it is hand-tight. Engine Overheating You will find a coolant temperature gage and a low coolant level warning message on your vehicle's instrument panel. See Engine Coolant Temperature Gage on page 3-35 and Low Coolant Level Warning Message on page 3-43. You also have a check gage message and a transaxle fluid hot message. See Check Gage Message on page 3-44 and Transaxle Fluid Hot Message on page 3-42. Notice: Driving with either the CHK GAGE message or the COOLANT message displayed in the message center and the Engine Coolant Temperature Gage on your instrument panel in the red zone could cause your vehicle to overheat. See "Engine Overheating" under Engine Coolant on page 5-26. Your vehicle could be damaged and the damages might not be covered by your warranty. 5-29