Starting And Operating Your Vehicle; New Vehicle Break-In; Ignition Positions - Chevrolet Suburban 2007 Owner's Manual

Starting and Operating Your
Vehicle

New Vehicle Break-In

Notice: Your vehicle does not need an
elaborate break-in. But it will perform better in
the long run if you follow these guidelines:
•
Keep your speed at 55 mph (88 km/h)
or less for the first 500 miles (805 km).
•
Do not drive at any one constant speed, fast
or slow, for the first 500 miles (805 km).
Do not make full-throttle starts. Avoid
downshifting to brake, or slow, the vehicle.
•
Avoid making hard stops for the first
200 miles (322 km) or so. During this time
your 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
Towing a Trailer on page 416 for the trailer
towing capabilities of your vehicle and more
information.
Following break-in, engine speed and load can
be gradually increased.
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Ignition Positions

Use the key to turn the ignition switch to four
different positions.
A (LOCK): This position locks the ignition and
transmission. It is a theft-deterrent feature. You will
only be able to remove the key when the ignition
is turned to LOCK.