A high electrical load occurs when several of the
following loads are on: headlamps, high beams, fog
lamps, rear window defogger, climate control fan at high
speed, heated seats, engine cooling fans, trailer
loads, and loads plugged into accessory power outlets.
EPM works to prevent excessive discharge of the
battery. It does this by balancing the generator’s output
and the vehicle’s electrical needs. It can increase
engine idle speed to generate more power, whenever
needed. It can temporarily reduce the power demands of
some accessories.
Normally, these actions occur in steps or levels, without
being noticeable. In rare cases at the highest levels
of corrective action, this action may be noticeable to
the driver. If so, a Driver Information Center (DIC)
message might be displayed, such as Battery Saver
Active or Service Battery Charging System. If this
message is displayed, it is recommended that the
driver reduce the electrical loads as much as possible.
See
DIC Warnings and Messages on page 3-53
.
Battery Run-Down Protection
This feature shuts off the dome, courtesy, and vanity
lamps if they are left on for more than 20 minutes
when the ignition is off. This will keep the battery from
running down.
If the battery run-down protection shuts off the interior
lamps, it may be necessary to do one of the following to
return to normal operation:
•
Shut off all lamps and close all doors.
•
Turn the ignition key to RUN.
This feature will also turn off the parking lamps and
headlamps under most circumstances, if they are left on.
If you would like to turn them back on, turn the exterior
lamps knob.
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Summary of Contents for 2008 TrailBlazer
Page 72: ... NOTES 1 68 ...
Page 133: ... NOTES 3 3 ...
Page 134: ...Instrument Panel Overview 3 4 ...
Page 238: ... NOTES 3 108 ...
Page 312: ...When you open the hood on the 5 3L V8 engine here is what you will see 5 14 ...
Page 314: ...When you open the hood on the 6 0L V8 TrailBlazer SS engine here is what you will see 5 16 ...
Page 416: ...Rear Underseat Fuse Block 5 118 ...
Page 436: ...Engine Drive Belt Routing 4 2L V6 Engine 5 3L V8 and 6 0L V8 Engines 6 16 ...