GMC 2003 Safari Owner's Manual page 98

Starting and Operating
Your Vehicle
New Vehicle Break-in
Notice: Your vehicle doesn't need an elaborate
"break-in." But it will perform better in the long run
if you follow these guidelines:
a
a
Keep your speed at 55 mph (88 km/h) or less
for the first 500 miles (805 km).
Don't drive at any one speed
-
fast or
slow
-
for the first 500 miles (805 km).
Don't make full-throttle starts.
Avoid making hard stops for the first 200 miles
(322 km) or so. During this time your new
brake linings aren't 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.
Don't tow a trailer during break-in. See "Towing
a Trailer" in the Index for more information.
Ignition Positions
With the key in the ignition, you can turn it to five
different positions.
C
A E
A (ACCESSORY): This position lets you use things like
the radio, power windows and windshield wipers when
the engine is off. To get into ACCESSORY, push in the
key and turn it toward you. Your steering wheel will
remain locked, just as it was before you inserted the key.
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