2011 CHEVROLET SILVERADO relay

Black plate (35,1)Chevrolet Silverado Owner Manual - 2011
In Brief 1-35
.Replace the vehicle's tires with
the same TPC Spec number
molded into the tire's sidewall
near the size.
.Follow recommended scheduled
maintenance.
Roadside Assistance
Program
U.S.:1-800-243-8872
TTY Users: 1-888-889-2438
Canada: 1-800-268-6800
As the owner of a new Chevrolet,
you are automatically enrolled in
the Roadside Assistance program.
This program provides technically
trained advisors who are available
24 hours a day, 365 days a year,
to give minor repair information or
make towing arrangements.
For more information see Roadside
Assistance Program on page 13‑7. Roadside Assistance and OnStar
If you have a current OnStar
subscription, press the OnStar
button and the current GPS location
will be sent to an OnStar advisor
who will assess your problem,
contact Roadside Assistance,
and relay your exact location
to get the help you need.
Online Owner Center
The Online Owner Center is a
complimentary service that includes
online service reminders, vehicle
maintenance tips, online owner
manual, special privileges,
and more.
Sign up today at:
www.chevyownercenter.com
(U.S.) or
www.gm.ca (Canada).
OnStar®
For vehicles with an active OnStar
subscription, OnStar uses several
innovative technologies and live
advisors to provide a wide range
of safety, security, navigation,
diagnostics, and calling services.
Automatic Crash Response
In a crash, built‐in sensors can
automatically alert an OnStar
advisor who is immediately
connected to the vehicle to
see if you need help.

Black plate (113,1)Chevrolet Silverado Owner Manual - 2011
Driving and Operating 9-113
Trailer Brakes
A loaded trailer that weighs more
than 900 kg (2,000 lbs) needs to
have its own brake system that
is adequate for the weight of the
trailer. Be sure to read and follow
the instructions for the trailer brakes
so they are installed, adjusted, and
maintained properly.
If the vehicle is equipped with
StabiliTrak, the trailer cannot tap
into the vehicle's hydraulic brake
system.
The trailer brake system can tap
into the vehicle's hydraulic brake
system only if:
.The trailer parts can withstand
20 650 kPa (3,000 psi) of
pressure.
.The trailer's brake system
will use less than 0.3 cc
(0.02 cubic inch) of fluid from
the vehicle's master cylinder.
Otherwise, both braking systems
will not work well or at all.If everything checks out this far,
make the brake tap at the port on
the master cylinder that sends the
fluid to the rear brakes. Use only
steel brake tubing to make the tap.
Auxiliary Battery
The auxiliary battery provision can
be used to supply electrical power
to additional equipment that may be
added, such as a slide-in camper.
If the vehicle has this provision, this
relay will be located on the driver
side of the vehicle, next to the
underhood electrical center.
Be sure to follow the proper
installation instructions included
with any electrical equipment
that is installed.
Notice:
Leaving electrical
equipment on for extended
periods will drain the battery.
Always turn off electrical
equipment when not in use
and do not use equipment that
exceeds the maximum amperage
rating for the auxiliary battery
provision.
Trailer Wiring Harness
The vehicle is equipped with one of
the following wiring harnesses for
towing a trailer or hauling a slide-in
camper.
Basic Trailer Wiring
All regular, extended cab and crew
cab pickups have a seven‐wire
trailer towing harness.
For vehicles not equipped with
heavy duty trailering, the harness
is secured to the vehicle's frame
behind the spare tire mount.
The harness requires the installation
of a trailer connector, which is
available through your dealer.
If towing a light‐duty trailer with
a standard four‐way round pin
connector, an adapter is available
from your dealer.

Black plate (52,1)Chevrolet Silverado Owner Manual - 2011
10-52 Vehicle Care
J-CaseFuses Usage
68 Stud 1 (Trailer
Connector
Battery Power)
(Optional - 40A
Fuse Required)
69 Mid-Bussed
Electrical Center 1
70 Climate Control
Blower
71 Not Used
72 Left Bussed
Electrical Center 2
Relays Usage
FAN HI Cooling Fan High
Speed
FAN LO Cooling Fan Low
Speed Relays Usage
FAN CNTRL Cooling Fan
Control
HDLP
LO/HID Low-Beam
Headlamp
FOG LAMP Front Fog Lamps
A/C
CMPRSR Air Conditioning
Compressor
STRTR Starter
PWR/TRN Powertrain
FUEL PMP Fuel Pump
PRK LAMP Parking Lamps
REAR
DEFOG Rear Defogger
RUN/CRNK Switched PowerInstrument Panel Fuse
Block
The instrument panel fuse block
access door is located on the driver
side edge of the instrument panel.
Pull off the cover to access the fuse
block.