160 || 161
HANDLING THE UNEXPECTEDHANDLING THE UNEXPECTED
Overheating
If the temperature gauge needle is at the H mark, the engine suddenly loses power, or steam or
spray comes out from under the hatch, your engine is overheating.
Immediately park the vehicle in a safe place. Turn off all accessories and turn on the hazard
warning lights. Change the gear position to (P).
If no steam or spray is present: Keep the power system on and open the hatch.
If steam or spray is present: Turn off the power system and wait until it subsides. Then, open
the hatch.
Check that the cooling fan is operating and turn the power system off once the temperature
gauge needle comes down. If the cooling fan is not operating, immediately turn the power
system off.
Once the engine has cooled down, inspect the coolant level and
check the cooling system components for leaks. If the coolant
level in the reserve tank is low, or no coolant is in the tank, check
that the radiator is cool. Cover the reserve tank cap with a heavy
cloth and open the cap. Add coolant until it reaches the MAX
mark, and put the cap back on.
Reserve TankMAXMIN
Once the engine has cooled sufficiently, turn the power system on and check the temperature
gauge. If the temperature needle has gone down, resume driving. If it has not gone down,
contact an authorized Acura NSX dealer for repairs.
Steam and spray from an overheated engine can seriously scald you.
Do not open the hatch if steam is coming out.
WARNING
Removing the radiator cap while the engine is hot can cause the coolant to spray
out, seriously scalding you.
Always let the engine and radiator cool down before removing the radiator cap.
WARNING
Continuing to drive with the temperature gauge needle at the H mark may damage the engine.
NOTICE
190 || 191
MAINTENANCEMAINTENANCE
n Adding Coolant
Make sure
the engine and radiator are cool.
Turn the reserve tank cap counterclockwise and relieve any
pressure in the coolant system. Do not push the cap down
when turning.
Push down and turn the cap counterclockwise to remove it.
Pour coolant into the reserve tank until it reaches the MAX
mark. Put the cap back on the reserve tank and tighten.
Reserve Tank
Cap
Removing the reserve tank cap while the engine is hot can cause the coolant to
spray out, seriously scalding you.
Always let the engine and radiator cool down before removing the reserve tank
cap.
WARNING
Pour the fluid slowly and carefully so you do not spill any. Clean up any spills immediately;
they can damage components in the engine compartment.
NOTICE
Inverter Coolant
Check the inverter coolant level every time you refuel
n
Checking the Inverter
Coolant Level
Open the hood.
If the inverter coolant is below the MIN level, have your
vehicle serviced at an authorized Acura NSX dealer.
MA X
MIN
Filler
Tank
Window Washer Fluid
If the washer fluid is low, a message will appear on the driver information interface. Do not
overfill the reservoir.
Do not use engine antifreeze or a vinegar/water solution in the windshield washer reservoir.
Antifreeze can damage your vehicle’s paint. A vinegar/water solution can damage the windshield
washer pump.
NOTICE
