Starting And Operating; New Vehicle Break-In - GMC Yukon 2023 Owner's Manual

Caution
Overloading the vehicle may cause
damage. Repairs would not be covered by
the vehicle warranty. Do not overload the
vehicle.
The label will help decide how much
cargo and installed equipment the truck
can carry.
Using heavier suspension components
to get added durability might not
change the weight ratings. Ask your
dealer to help load the vehicle the
right way.
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 is also important loading
information for off-road driving in this
manual. See Loading Your Vehicle for
Off-Road Driving under Off-Road
Driving 0 187.
(Continued)
Driving and Operating

Starting and Operating

New Vehicle Break-In

Caution
The vehicle does not need an elaborate
break-in. But it will perform better in the
long run if you follow these guidelines:
Do not drive at any one constant
speed, fast or slow, for the first
800 km (500 mi). Do not make
full-throttle starts. Avoid downshifting
to brake or slow the vehicle.
Avoid making hard stops for the first
300 km (200 mi) 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. Follow this breaking-in
guideline every time you get new
brake linings.
Do not tow a trailer during break-in.
See Trailer Towing 0 281 for the trailer
towing capabilities of the vehicle and
more information.
Following break-in, engine speed and load
can be gradually increased.
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