Starting and operating, New vehicle break-in, Adjustable throttle and brake pedal – GMC 2012 Sierra User Manual

Page 301: Starting and operating -25, Pedal -25, Driving and operating 9-25

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GMC Sierra Owner Manual - 2012 - CRC - 11/15/11

Driving and Operating

9-25

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. Follow this
breaking-in guideline every
time you get new brake
linings.

.

Do not tow a trailer during
break-in. See Trailer Towing
on page 9‑78
for the trailer
towing capabilities of the
vehicle and more
information.

Following break‐in, engine
speed and load can be gradually
increased.

Adjustable Throttle and
Brake Pedal

On vehicles with this feature, you
can change the position of the
throttle and brake pedals.

No adjustment to the pedals can
be made when the vehicle is in
R (Reverse) or while using cruise
control.

The control used to adjust the
pedals is located on the instrument
panel below the climate control
system.

Press the bottom of the control to
move the pedals closer. Press the
top of the control to move the
pedals away.

Before you start driving, fully
press the brake pedal to confirm
the adjustment is right for you.
While driving, make only small
adjustments.

The vehicle may have a memory
function which lets pedal settings be
saved and recalled. See Memory
Seats on page 3‑7
.

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