2021 HONDA INSIGHT coolant level

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Page 571 of 687

HONDA INSIGHT 2021  Owners Manual (in English) 569
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Continued
Maintenance
■Maintenance Service Items1Maintenance Service Items
•Adjust the valves during services A, B, 1, 2, or 3 if 
they are n

Page 572 of 687

HONDA INSIGHT 2021  Owners Manual (in English) 570
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Maintenance
1Maintenance Service Items
•Adjust the valves during services A, 0, 9, 1, 2, or 3 
if they are noisy.
Canadian models
*1: If a Main

Page 581 of 687

HONDA INSIGHT 2021  Owners Manual (in English) 579
uuMaintenance Under the Hood uCooling System
Continued
Maintenance
Cooling System
This coolant is premixed with 50% an tifreeze and 50% water. Do not add any 
straight antifreeze or water.
We reco

Page 582 of 687

HONDA INSIGHT 2021  Owners Manual (in English) uuMaintenance Under the Hood uCooling System
580
Maintenance
1. Make sure the engine and radiator are 
cool.
2. Turn the radiator cap 1/8 turn counter-
clockwise and relieve  any pressure in the 
cool

Page 583 of 687

HONDA INSIGHT 2021  Owners Manual (in English) 581
uuMaintenance Under the Hood uInverter Coolant
Maintenance
Inverter Coolant
This coolant is premixed with 50% an tifreeze and 50% water. Do not add any 
straight antifreeze or water.
We recommend

Page 644 of 687

HONDA INSIGHT 2021  Owners Manual (in English) uuOverheating uHow to Handle Overheating
642
Handling the Unexpected
■Next thing to do
1.Check that the cooling fan is operating and 
turn the power system off once the  Engine 
Temperature Too Hot.