Starting And Operating; New Vehicle Break-In; Composite Materials - GMC Cadillac CT5 2021 Manual

222 DRIVING AND OPERATING

Starting and Operating

New Vehicle Break-In

Follow these recommended guidelines
during the first 2 400 km (1,500 mi) of
driving this vehicle. Parts have a
break-in period and performance will
be better in the long run.
For the first 2 400 km (1,500 mi):
Avoid full throttle starts and abrupt
stops.
Do not exceed 4000 engine rpm.
Avoid driving at any one constant
speed, fast or slow.
Avoid downshifting to brake or slow
the vehicle when the engine speed
will exceed 4000 rpm.
Do not let the engine labor. Never
lug the engine in high gear at low
speeds.
Do not participate in track events,
sport driving schools, or similar
activities during this break-in
period.
Check engine oil with every
refueling and add if necessary. Oil
and fuel consumption may be
higher than normal during the first
2 400 km (1,500 mi).
To break in new tires, drive at
moderate speeds and avoid hard
cornering for the first
300 km (200 mi). New tires do not
have maximum traction and may
tend to slip.
New brake linings also need a
break-in period. Avoid making hard
stops during the first
300 km (200 mi). This is
recommended every time brake
linings are replaced.

Composite Materials

This vehicle may be equipped with
parts containing carbon fiber,
sheet-molding compound, or other
composite materials. Dealer-installed
accessories may also contain
composite materials.
Warning
Exposed edges of parts containing
carbon fiber and other composite
materials can be sharp. Contact
with these parts could result in
injury. Use caution to avoid
contacting these parts, including
when washing the vehicle. If the
parts are damaged, replace the
parts promptly with replacements
from your dealer.
Warning
Rocker extensions may break under
pressure, resulting in property
damage or injury. Do not stand on
the rocker extension or use it as
a step.
Warning
Rear end spoilers may break under
pressure, resulting in property
damage or injury. Do not push the
vehicle by the spoiler or use the
spoiler as a handle.