Tire wear

When the tread is worn down to 1/16th of an inch (2 mm), tires must be replaced to help prevent your vehicle from skidding and hydroplaning. Built-in treadwear indicators, or “wear bars”, which look like narrow strips of smooth rubber across the tread will appear on the tire when the tread is worn down to 1/16th of an inch (2 mm).
When the tire tread wears down to the same height as these “wear bars”, the tire is worn out and must be replaced.

See also:
Safety
Four-wheel-disc antilock brakes, traction control and an electronic stability
system are standard. The MKZ's six standard airbags include side-impact airbags
for the front seats and side curtain a ...
Positive retention floor mat
WARNING: Always use floor mats that are designed to fit the
foot well of your vehicle. Only use floor mats that leave the
pedal area unobstructed. Only use floor mats that are firmly secured to ...
Electronic stability control (ESC)
Electronic stability control (ESC) may enhance your vehicle’s directional
stability during adverse maneuvers, for example when cornering severely
or avoiding objects in the roadway. ESC operates b ...
