ptu LINCOLN MKZ 2020 Owners Manual

Page 192 of 561

Once through water, always try the brakes.
Wet brakes do not stop the vehicle as
effectively as dry brakes. Drying can be
improved by moving your vehicle slowly
while applying light pressure on the brake
pedal.
Be cautious of sudden changes in vehicle
speed or direction when you are driving in
mud. Even AWD vehicles can lose traction
in slick mud. As when you are driving over
sand, apply the accelerator slowly and avoid
spinning your wheels. If the vehicle does
slide, steer in the direction of the slide until
you regain control of the vehicle.
After driving through mud, clean off residue
stuck to rotating driveshafts and tires. Excess
mud stuck on tires and rotating driveshafts
causes an imbalance that could damage
drive components.
Note:
Driving through deep water may
damage the transmission.
If the front or rear axle is submerged in water,
have the power transfer unit (PTU) or rear
axle serviced by an authorized dealer. Driving on Hilly or Sloping Terrain
Note:
Avoid driving crosswise or turning on
steep slopes or hills. A danger lies in losing
traction, slipping sideways and possibly
rolling over. Whenever driving on a hill,
determine beforehand the route you will use.
Do not drive over the crest of a hill without
seeing what conditions are on the other side.
Do not drive in reverse over a hill without
the aid of an observer.
Although natural obstacles may make it
necessary to travel diagonally up or down a
hill or steep incline, you should always try to
drive straight up or straight down.
When climbing a steep slope or hill, start in
a lower gear rather than downshifting to a
lower gear from a higher gear once the
ascent has started. This reduces strain on
the engine and the possibility of stalling.
If you do stall out, do not try to turnaround
because you might roll over. It is better to
back down to a safe location. Apply just enough power to the wheels to
climb the hill. Too much power will cause the
tires to slip, spin or lose traction, resulting in
loss of vehicle control.
Descend a hill in the same gear you would
use to climb up the hill to avoid excessive
brake application and brake overheating. Do
not descend in neutral; instead, disengage
overdrive or manually shift to a lower gear.
When descending a steep hill, avoid sudden
hard braking as you could lose control. The
front wheels have to be turning in order to
steer the vehicle.
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MKZ (CC9) Canada/United States of America, enUSA, Edition date: 201905, Second-Printing All-Wheel Drive (If Equipped)E143949

Page 490 of 561

Operating in dusty or sandy conditions, such as unpaved or dusty roads
Perform a multi-point inspection.
Change the automatic transmission fluid.
Every 30,000 mi
(48,000 km)
1 Reset your Intelligent Oil-Life Monitor after engine oil and filter chang\
es.
See Engine Oil Check (page 306). Exclusive use of E85, Flex Fuel Vehicles Only
If ran exclusively on E85, fill the fuel tank full with regular unleaded fuel.
Every oil change
Exceptions
There are several exceptions to the Normal
Schedule:
Rear Axle and PTU Maintenance
The Power Transfer Unit (PTU) and rear axle,
all-wheel drive only, in your vehicle does not
require any normal scheduled maintenance
unless the unit shows signs of leakage.
Contact an authorized dealer for service. California Fuel Filter Replacement
If you register your vehicle in California, the
California Air Resources Board has
determined that the failure to perform this
maintenance item does not nullify the
emission warranty or limit recall liability
before the completion of your vehicle's
useful life. We, however, urge you to have
all recommended maintenance services
performed at the specified intervals and to
record all vehicle service.Engine Air Filter and Cabin Air Filter
Replacement
The life of the engine air filter and cabin air
filter is dependent on exposure to dusty and
dirty conditions. Vehicles operated in these
conditions require frequent inspection and
replacement of the engine air filter and cabin
air filter.
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MKZ (CC9) Canada/United States of America, enUSA, Edition date: 201905, Second-Printing Scheduled Maintenance