Passlock
®
Your vehicle is equipped with the
Passlock
®
theft-deterrent system.
Passlock
®
is a passive theft-deterrent system.
Passlock
®
enables fuel if the ignition lock cylinder is
turned with a valid key. If a correct key is not used or the
ignition lock cylinder is tampered with, fuel is disabled.
If the engine stalls and the security light flashes,
wait until the light stops flashing before trying to restart
the engine. Remember to release the key from
START as soon as the engine starts.
If the engine is running and the security light comes on,
you will be able to restart the engine if you turn the
engine off. However, your Passlock
®
system is
not working properly and must be serviced by your
dealer. Your vehicle is not protected by Passlock
®
at this
time. You may also want to check the fuse (see
Fuses and Circuit Breakers on page 5-97.) See your
dealer for service.
In an emergency, call the GM Roadside Assistance
Center. See
Roadside Assistance Program on page 7-6
under Customer Assistance Information.
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 speed — fast or
slow — for the first 500 miles (805 km). Do not
make full-throttle starts.
•
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 4-61 for more information.
2-18
Summary of Contents for 2003 Yukon XL
Page 5: ...These are some examples of vehicle symbols you may find on your vehicle v ...
Page 6: ...Model Reference This manual covers these models Yukon Yukon XL vi ...
Page 64: ...Tahoe Yukon Second Row Seat Third Row 50 50 Split Bench Seat 1 58 ...
Page 94: ... NOTES 1 88 ...
Page 157: ... NOTES 3 3 ...
Page 158: ...Instrument Panel Overview 3 4 ...
Page 282: ... NOTES 3 128 ...
Page 372: ...When you open the hood on the VORTEC 8100 V8 engine you ll see the following 5 14 ...
Page 460: ...See Engine Compartment Overview on page 5 12 for more information on its location 5 102 ...
Page 488: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance Record 6 20 ...
Page 500: ... NOTES 7 12 ...