2018 Acura NSX Owners Manual - Starting to Drive

Check that the parking brake is applied (pull up on the switch and look for the indicator light), then depress the brake pedal. Keep your foot firmly on the brake pedal when starting the engine.

The engine will be harder to start in cold weather and in thinner air found at altitudes above 8,000 feet (2,400 m). When starting the engine in cold weather, turn off all electrical accessories such as the lights, climate control system, and rear defogger in order to reduce battery drain.

Due to limitations of the Lithium-ion High Voltage battery, the minimum starting temperature for the vehicle is -4°F (-20°C). Inability to start the vehicle and/or decreased performance is expected if the vehicle is operated at temperatures below -4°F (-20°C).

Accessory or On mode: Press the ENGINE START/STOP button once without pressing the accelerator pedal for Accessory mode. Press it again for On mode.

Starting the power system: Make sure the parking brake is applied. Then, press the brake pedal while you press the ENGINE START/STOP button once. Do not press the accelerator.

• When the Integrated Dynamics System (IDS) is in QUIET mode: If the High Voltage battery is fully charged, the gasoline engine may not start. The gasoline engine starts either according to the temperature of the engine or when the High Voltage battery charge level is low.
• When the Integrated Dynamics System (IDS) is in SPORT mode: Regardless of the High Voltage battery charge level, the gasoline engine always starts. The gasoline engine starts with a louder sound than QUIET mode. When engine temperature or the High Voltage battery temperatures are low or when High Voltage battery charge level is low, gasoline engine starts at the same sound level as QUIET mode.

Turning the power system off: Select Park (P), then press the ENGINE START/STOP button.