See also:

Hazard warning flasher switch
Push the switch on to warn other drivers when you must stop or park under emergency conditions. All turn signal lights flash. WARNING: - If stopping for an emergency, be sure to move the vehi ...

Exhaust gas (carbon monoxide)
WARNING: - Do not breathe exhaust gases; they contain colorless and odorless carbon monoxide. Carbon monoxide is dangerous. It can cause unconsciousness or death. - If you suspect that exhaus ...

NISSAN dealer.
However, now and then you may notice light spark knock for a short time while accelerating or driving up hills. This is not a cause for concern, because you get the greatest fuel benefit when ther ...