Starting And Operating; New Vehicle Break-In - GMC Yukon XL Denali Owner's Manual

Using heavier suspension
components to get added
durability might not change your
weight ratings. Ask your dealer
to help you load your vehicle the
right way.
If you put things inside your
vehicle like suitcases, tools,
packages, or anything else
they go as fast as the vehicle
goes. If you have to stop or turn
quickly, or if there is a crash,
they'll keep going.
WARNING
Things you put inside the
vehicle can strike and injure
people in a sudden stop or
turn, or in a crash.
Put things in the cargo
area of the vehicle. Try to
spread the weight evenly.
WARNING (Continued)
Never stack heavier
things, like suitcases,
inside the vehicle so that
some of them are above
the tops of the seats.
Do not leave an
unsecured child restraint
in the vehicle.
When you carry something
inside the vehicle, secure
it whenever you can.
Do not leave a seat folded
down unless you need to.
There's also important loading
information for off-road driving in
this manual. See Loading Your
Vehicle for Off-Road Driving
under Off-Road Driving on
page 9 5.
(Continued)
Driving and Operating
Starting and
Operating

New Vehicle Break-In

Notice: The vehicle does not
need an elaborate break-in. But it
will perform better in the long run
if you follow these guidelines:
Keep the vehicle speed at
88 km/h (55 mph) or less for
the first 805 km (500 miles).
Do not drive at any one
constant speed, fast or slow,
for the first 805 km
(500 miles). Do not make
full-throttle starts. Avoid
downshifting to brake or
slow the vehicle.
Avoid making hard stops for
the first 322 km (200 miles) or
so. During this time the new
brake linings are not yet
broken in. Hard stops with
new linings can mean
premature wear and earlier
replacement.
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