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:
Steering
The steering system for the new MKT is improved, too. The gear ratio is
quicker (15:1 for 2013 vs. 17.1:1 for 2012), making the steering more
immediately responsive.
All new Lincoln MKT models ben ...
Damage
Periodically inspect the tire treads and sidewalls for damage (such as
bulges in the tread or sidewalls, cracks in the tread groove and
separation in the tread or sidewall). If damage is observed ...
Bounce-back
When an obstacle has been detected in the window opening as the
window is moving upward, the window will automatically reverse
direction and move down. This is known as “bounce-back”. If the ignit ...
