A high electrical load occurs when several of the
following are on, such as: 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, BATTERY VOLTAGE LOW, or LOW
BATTERY. 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 4
‑
66
.
Battery Run-Down Protection
This feature shuts off the dome and reading lamps,
if they are left on for more than 10 minutes after the
ignition is turned off. The cargo lamp shuts off after
20 minutes. This prevents the battery from
running down.
Accessory Power Outlet(s)
Accessory power outlets can be used to connect
auxiliary electrical equipment, such as a cellular
telephone.
The vehicle may have two accessory power outlets
located below the climate control system, or may have
one accessory power outlet and one cigarette lighter.
The cigarette lighter is designed to fit only in the
receptacle closest to the driver.
There may be another accessory power outlet in the
rear cargo area. If the vehicle has a floor console, there
is an accessory power outlet inside the storage bin and
one on the rear of the floor console.
4-17
Summary of Contents for 2010 GMC Sierra
Page 6: ...2 NOTES vi ...
Page 8: ...Instrument Panel Instrument Panel Base Uplevel Version 1 2 ...
Page 10: ...Instrument Panel Premium Version 1 4 ...
Page 60: ...Put someone on it Get it up to speed Then stop the vehicle The rider does not stop 2 18 ...
Page 138: ...2 NOTES 2 96 ...
Page 224: ...2 NOTES 3 86 ...
Page 376: ...2 NOTES 4 152 ...
Page 600: ...2 NOTES 6 140 ...
Page 618: ...Maintenance Record cont d Date Odometer Reading Serviced By Services Performed 7 18 ...
Page 619: ...Maintenance Record cont d Date Odometer Reading Serviced By Services Performed 7 19 ...
Page 620: ...Maintenance Record cont d Date Odometer Reading Serviced By Services Performed 7 20 ...
Page 642: ...2 NOTES 8 22 ...
Page 659: ... NOTES ...
Page 660: ... NOTES ...