Important safety precautions

When the engine starts, the idle RPM runs faster to warm the engine. If the engine idle speed does not slow down automatically, have the vehicle checked.
Before starting the vehicle:
1. Make sure all vehicle occupants buckle their safety belts. For more information on safety belts and their proper usage, refer to the Seating and Safety Restraints chapter.
2. Make sure the headlamps and electrical accessories are off.

• Make sure the parking brake is set.

• Make sure the gearshift is in P (Park).

3. Turn the key to 3 (on) without turning the key to 4 (start).
Some warning lights will briefly illuminate. See Warning lights and chimes in the Instrument Cluster chapter for more information regarding the warning lights.
See also:
The Inside
I'm not a fan of all-gray interiors, which seem drab to me — even more so
than all-black designs — but that's what our MKZ had. Getting past my own
preferences, however, let me appreciate a cabin ...
Engine block heater (if equipped)
WARNING: Failure to follow engine block heater instructions
could result in property damage or physical injury.
WARNING: To reduce the risk of electrical shock, do not use
your heater with ungrou ...
Jump starting
WARNING: The gases around the battery can explode if
exposed to flames, sparks, or lit cigarettes. An explosion could
result in injury or vehicle damage.
WARNING: Batteries contain sulfuric acid ...
