GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-18552429) - 2025
164 Driving and Operating
Warning (Continued)
•
Pu
t things in the cargo area of the
vehicle. In the cargo area, put them
as far forward as possible. Try to
spread the weight evenly.
•
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.
•
Secure loose items in the vehicle.
•
Do not leave aseat folded down
unless needed.
Starting and Operating
Ne
w 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 atrailer during break-in.
See Trailer Towing 3216 for the trailer
towing capabilities of the vehicle and
more information.
(Continued)
Caution (Continued)
Following break-in, engine speed and load
can be gradually increased.
On new vehicles, the various mechanical and
el
ectrical systems experience a“break-in”
period during the first 6 400 km (4,000 mi)
of routine driving. As the vehicle is driven,
the mechanical systems adjust to provide
optimal fuel economy and transmission
shift performance.
Electrical systems will adapt and calibrate
during the break-in period. Aone-time
occurrence of clicks and similar vehicle noises is
normal during this process.
Normal driving charges the vehicle’s battery
to achieve the best operation of the vehicle,
including fuel economy and the Stop/Start
System. See Stop/Start System 3167.
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