See also:

Trailer lights
When splicing into the vehicle electrical system, a commercially available power-type module/converter must be used to provide power for all trailer lighting. This unit uses the vehicle ...

Driving the vehicle
...

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 ...