Replacing HID headlamp bulbs (if equipped)

The low beam headlamps on your vehicle use a “high intensity discharge” source. These lamps operate at a high voltage. When the bulb is burned out, the bulb and starter capsule assembly must be replaced by your authorized dealer.
See also:
SAFETY
There's no hunting or digging for Latch connectors in the MKZ. They stuck out
from the cushions, so there wasn't any thumb-wrestling with overstuffed cushions
to get everyone's child-safety seats ...
Safety belt warning light and indicator chime
The safety belt warning light illuminates in the instrument cluster and a
chime sounds to remind the occupants to fasten their safety belts.
Conditions of operation
...
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 ...
