Page 275 of 394

Black plate (37,1)Chevrolet Colorado Owner Manual - 2012
Vehicle Care 10-37
7. Insert the bulb socket into thetaillamp assembly and turn it
clockwise to secure.
8. Reinstall the taillamp assembly and tighten the screws.
Center High-Mounted
Stoplamp (CHMSL)
To replace the CHMSL bulb:
1. Remove the two screws and liftoff the lamp assembly from the
vehicle.
2. Turn the bulb socketcounterclockwise and remove it
from the lamp assembly.
3. Holding the socket, pull the bulb to release it from the socket. 4. Push the new bulb into the
socket until it clicks.
5. Insert the bulb socket into the lamp assembly and turn it
clockwise to secure.
6. Reinstall the lamp assembly and tighten the screws.
License Plate Lamp
To replace one of these bulbs:
1. Reach under the rear bumper forthe bulb socket.
2. Turn the bulb socket counterclockwise and pull the
bulb socket out of the connector.
3. Pull the old bulb straight out from the bulb socket. 4. Push the new bulb straight in
until it clicks to secure it.
5. Reach under the rear bumper to reinstall the bulb socket into the
connector.
6. Turn the bulb socket clockwise to secure it to the connector.
Replacement Bulbs
Exterior Lamp Bulb
Number
Cargo Lamp
and Center
High‐Mounted
Stoplamp (CHMSL) 912LL
License Plate Bulb W5W LL
Headlamps High-beam 9005
Low-beam/
Daytime
Running
Lamp (DRL) 9006
Page 281 of 394
Black plate (43,1)Chevrolet Colorado Owner Manual - 2012
Vehicle Care 10-43
RelaysUsage
A/C
CMPRSR Air Conditioning
Compressor
Backup Lamp Backup Lamp
BEAM SEL Beam Selection
DRL Daylight Running
Lamps
FOG/LAMP Fog Lamps
(If Equipped)
HDLP Headlamps
HORN Horn
IGN 3 HVAC Ignition 3, Climate
Control, Climate
Control Head
Fuse, Power
Seat Fuse Relays
Usage
PRK/LAMP Front Parking
Lamp Fuse, Rear
Parking Lamps
PWR/TRN Powertrain,
Electronic
Throttle Control
Fuse, Oxygen
Sensor Fuse
RAP Retained
Accessory
Power (Power
Window Fuse,
Wiper/Washer
Switch Fuse) Relays
Usage
RUN/CRNK Run/Crank, Airbag
System Fuse,
Cruise Control
Fuse, Ignition
Fuse, Back-Up
Lamps, ABS Fuse,
Front Axle, PCM-1,
Injectors Fuse,
Transmission
Fuse, ERLS
STRTR Starter Relay (PCM
Relay)
VSES Vehicle Stability
Enhancement
System
WPR Wipers (On/Off)
WPR 2 Wiper 2 (High/Low)
Page 387 of 394

Black plate (5,1)Chevrolet Colorado Owner Manual - 2012
INDEX i-5
Fuel (cont.)Gasoline Specifications . . . . . . . 9-49
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Recommended . . . . . . . . . . . . . . . 9-49
Requirements, California . . . . . 9-49
System Messages . . . . . . . . . . . . 5-24
Fuel Economy Driving . . . . . . . . . . . . . . . . . . . . . . . . 1-19
Full-Size Spare Tire . . . . . . . . . . 10-83
Fuses
Engine CompartmentFuse Block . . . . . . . . . . . . . . . . 10-39
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-39
G
Gasoline
Specifications . . . . . . . . . . . . . . . . . 9-49
Gauges Engine Coolant
Temperature . . . . . . . . . . . . . . . . . 5-9
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Odometer . . . . . . . . . . . . . . . . . . . . . . 5-8
Speedometer . . . . . . . . . . . . . . . . . . 5-8 Gauges (cont.)
Tachometer . . . . . . . . . . . . . . . . . . . . 5-8
Trip Odometer . . . . . . . . . . . . . . . . . 5-8
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . . 5-6
General Information Service and Maintenance . . . . . 11-1
Towing . . . . . . . . . . . . . . . . . . . . . . . . 9-53
Vehicle Care . . . . . . . . . . . . . . . . . . 10-2
Glove Box . . . . . . . . . . . . . . . . . . . . . . 4-1
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . 13-7
H
Halogen Bulbs . . . . . . . . . . . . . . . . 10-35
Hazard Warning Flashers . . . . . . . 6-4
Head Restraints . . . . . . . . . . . . . . . . 3-2
Headlamps . . . . . . . . . . . . . . . . . . . 10-35Aiming . . . . . . . . . . . . . . . . . . . . . . 10-35
Automatic . . . . . . . . . . . . . . . . . . . . . . 6-3
Bulb Replacement . . . . . . . . . . 10-35
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . . 6-2 Headlamps (cont.)
Flash-to-Pass . . . . . . . . . . . . . . . . . . 6-2
High-Beam On Light . . . . . . . . . . 5-18
High/Low Beam Changer . . . . . . 6-2
Heated Front Seats . . . . . . . . . . . . . 3-7
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 9-26
Heating and Air Conditioning . . . 8-1
High-Beam On Light . . . . . . . . . . . 5-18
High-Speed Operation . . . . . . . . 10-54
Highway Hypnosis . . . . . . . . . . . . . 9-12
Hill and Mountain Roads . . . . . . . 9-12
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
How to Wear Safety Belts Properly . . . . . . . . . . . . . . . . . . . . . . 3-12
Hydraulic Clutch . . . . . . . . . . . . . . 10-16
I
Ignition Positions . . . . . . . . . . . . . . 9-23
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . 10-32
Immobilizer . . . . . . . . . . . . . . . . . . . . 2-10
Page 388 of 394

Black plate (6,1)Chevrolet Colorado Owner Manual - 2012
i-6 INDEX
Infants and Young Children,Restraints . . . . . . . . . . . . . . . . . . . . 3-36
Infotainment . . . . . . . . . . . . . . . . . . . . 7-1
Instrument Cluster . . . . . . . . . . . . . . 5-7
Introduction . . . . . . . . . . . . . . . . . . . . . . . iii
J
Jump Starting . . . . . . . . . . . . . . . . . 10-84
K
Keyless Entry Remote (RKE) System . . . . . . . . 2-3
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
L
Labeling, Tire Sidewall . . . . . . . . 10-46
Lamp Messages . . . . . . . . . . . . . . . 5-25
Lamps Daytime Running (DRL) . . . . . . . 6-2
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Exterior Cargo . . . . . . . . . . . . . . . . . 6-5
Exterior Controls . . . . . . . . . . . . . . . 6-1 Lamps (cont.)
Exterior Lamps Off
Reminder . . . . . . . . . . . . . . . . . . . . 6-2
License Plate . . . . . . . . . . . . . . . 10-37
Malfunction Indicator . . . . . . . . . 5-13
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . 3-17
Lap-Shoulder Belt . . . . . . . . . . . . . 3-13
LATCH System Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . 3-52
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . 3-42
Latches, Seatback . . . . . . . . . . . . . . 3-6
Light StabiliTrak
®OFF . . . . . . . . . . . . . 5-16
Lighter, Cigarette . . . . . . . . . . . . . . . 5-5
Lighting Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Illumination Control . . . . . . . . . . . . 6-6
Lights Airbag Readiness . . . . . . . . . . . . . 5-10
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 5-16
Brake System Warning . . . . . . . 5-15 Lights (cont.)
Charging System . . . . . . . . . . . . . 5-12
Cruise Control . . . . . . . . . . . . . . . . 5-19
Engine Oil Pressure . . . . . . . . . . 5-18
Flash-to-Pass . . . . . . . . . . . . . . . . . . 6-2
High-Beam On . . . . . . . . . . . . . . . . 5-18
High/Low Beam Changer . . . . . . 6-2
Safety Belt Reminders . . . . . . . . . 5-9
Security . . . . . . . . . . . . . . . . . . . . . . 5-18
Tire Pressure . . . . . . . . . . . . . . . . . 5-17
Traction Control System
(TCS)/StabiliTrak
®. . . . . . . . . . 5-17
Limited-Slip Rear Axle . . . . . . . . . 9-45
Locks Automatic Door . . . . . . . . . . . . . . . . 2-5
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Lockout Protection . . . . . . . . . . . . . 2-6
Power Door . . . . . . . . . . . . . . . . . . . . 2-5
Safety . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Loss of Control . . . . . . . . . . . . . . . . . 9-5
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . 3-42
Lumbar Adjustment . . . . . . . . . . . . . 3-4 Front Seats . . . . . . . . . . . . . . . . . . . . 3-4