2010 Toyota Camry Owners Manual - Page 460
2010 Toyota Camry Manual
Page 460 highlights
5-2. Steps to take in an emergency STEP 4 After the hybrid system has cooled down sufficiently, check the engine coolant level and inspect the radiator core (radiator) for any leaks. STEP 5 Add engine coolant if necessary. Water can be used in an emergency if engine coolant is unavailable. (→P. 450)