Never start the engine and leave it running when the vehicle is in an enclosed space. Exhaust gases are poisonous and can cause unconsciousness and death if inhaled.
If the engine fails to start, do not continue cranking, as this discharges the battery. The catalytic converter may also be damaged due to unburnt fuel passing through the exhaust.
The smart key may not be detected if placed within a metal container, or shielded by a device with a back-lit LCD screen. For example, a smartphone, laptop, including when inside a laptop bag, or a games console. Keep the smart key clear of such devices when attempting keyless entry, an engine start, or the engine start backup procedure.
On some engine variants, the engine automatically shuts down if left running for a prolonged period. Before the engine shuts down, the instrument panel displays a warning message. The warning message provides an opportunity for the driver to press the brake pedal to keep the engine running.