Automatic Headlamp System
When it is dark enough outside, your automatic
headlamp system will turn on your headlamps at the
normal brightness along with other lamps such as
the taillamps, sidemarker, parking lamps and the
instrument panel lights. The radio lights will also be dim.
Your vehicle is equipped with a light sensor on the
top of the instrument panel under the radio speaker grill.
Be sure it is not covered or the system will be on
whenever the ignition is on.
The system may also turn on your headlamps when
driving through a parking garage, heavy overcast
weather or a tunnel. This is normal.
There is a delay in the transition between the daytime
and nighttime operation of the Daytime Running
Lamps (DRL) and the automatic headlamp systems so
that driving under bridges or bright overhead street
lights does not affect the system. The DRL and
automatic headlamp system will only be affected when
the light sensor sees a change in lighting lasting
longer than the delay.
To idle your vehicle with the automatic headlamp
system off, set the parking brake while the ignition is off.
Then start your vehicle. The automatic headlamp
system will stay off until you release the parking brake.
As with any vehicle, you should turn on the regular
headlamps when you need them.
You may be able to turn off your automatic headlamp
system. See “Daytime Running Lamps (DRL)” later
in this section for more information.
If you start your vehicle in a dark garage, the automatic
headlamp system will come on immediately. Once
you leave the garage, it will take approximately
one minute for the automatic headlamp system to
change to DRL if it is light outside. During that delay,
your instrument panel cluster may not be as bright
as usual. Make sure your instrument panel brightness
control is in the full bright position. See “Instrument
Panel Brightness Control” under Interior Lamps
on page 3-15.
Lamps On Reminder
A reminder chime will sound when your headlamps or
parking lamps are manually turned on, the driver’s door
is opened and your ignition is in OFF, LOCK or
ACCESSORY. To turn the chime off, turn the control
counterclockwise or turn the instrument panel brightness
thumbwheel down to the fully dimmed position. In the
automatic mode, the headlamps turn off once the ignition
key is in OFF.
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Summary of Contents for 2004 Blazer
Page 5: ...These are some examples of symbols you may find on your vehicle v ...
Page 6: ...Model Reference This manual covers these models 2 Door Utility 4 Door Utility vi ...
Page 16: ...Put someone on it Get it up to speed Then stop the vehicle The rider doesn t stop 1 10 ...
Page 66: ... NOTES 1 60 ...
Page 132: ...Instrument Panel Overview The main components of your instrument panel are the following 3 2 ...
Page 153: ...Up Level Cluster with Automatic Transmission United States Canada Similar 3 23 ...
Page 276: ... NOTES 4 72 ...
Page 288: ...Engine Compartment Overview When you open the hood you will see the following 5 12 ...
Page 420: ...Engine Drive Belt Routing 6 36 ...
Page 422: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance Record 6 38 ...
Page 423: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance Record 6 39 ...
Page 424: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance Record 6 40 ...