Page 144 of 420

Headlamps on Reminder
If the driver’s door is opened and the ignition is turned
off while leaving the lamps on, a warning chime will
sound.
Headlamps Off in Park
This feature works when the ignition is in the ON/RUN
position and it is dark outside. To turn the headlamps
off when it is dark outside but keep other exterior lights
on, turn the exterior lamp control to the parking lamp
position.
To turn on the headlamps along with the other lamps
when it is dark outside, turn the exterior lamp control to
the AUTO or headlamp position.
This function does not work for vehicles rst sold in
Canada.
Delayed Headlamps
The delayed headlamps feature keeps the headlamps
on for 20 seconds after the key is turned to LOCK/OFF,
then the headlamps automatically turn off.
To override the 20 second delayed headlamp feature
while it is active turn the turn signal/multifunction
lever up one position and then back to AUTO.
Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the day.
Fully functional DRL are required on all vehicles rst sold
in Canada. The vehicle has a light sensor on top of the
instrument panel that controls the DRL. Do not cover this
sensor or the head lamps will be on when they are not
needed.
The DRL system makes the low-beam headlamps come
on at a reduced brightness when the following conditions
are met:
The ignition is on.
The exterior lamps control is in AUTO.
The exterior lamps control is in the parking lamps
only position (This applies only to vehicles that are
rst sold in Canada).
The light sensor detects daytime light.
The parking brake is released or the vehicle is not in
P (Park).
When the DRL system is on, the taillamps, sidemarker
lamps, parking lamps, and instrument panel lights are
not on unless you turn the exterior lamps control to the
parking lamp position.
The regular headlamp system should be turned on
when they are needed.
3-14
Page 249 of 420
To dinghy tow the vehicle from the front with all four
wheels on the ground:
1. Position the vehicle to tow and then secure it to the
towing vehicle.
2. Shift the transmission to P (Park) and turn the
ignition to LOCK/OFF.
3. Set the parking brake.
4. To prevent the battery from draining while the
vehicle is being towed, remove the following
fuse from the instrument panel fuse block:
(IGN SENSOR). SeeInstrument Panel Fuse Block
on page 5-99for more information.5. Turn the ignition to ACC/ACCESSORY.
6. Shift the transmission to N (Neutral).
7. Release the parking brake.
Remember to reinstall the IGN SENSOR fuse once the
destination has been reached.
Notice:If 65 mph (105 km/h) is exceeded while
towing the vehicle, it could be damaged. Never
exceed 65 mph (105 km/h) while towing the vehicle.
Notice:Towing the vehicle from the rear could
damage it. Also, repairs would not be covered by the
vehicle warranty. Never have the vehicle towed
from the rear.
4-27
Page 323 of 420

The TPMS matching process is outlined below:
1. Set the parking brake.
2. Turn the ignition switch to ON/RUN with the
engine off.
3. Press and hold the Remote Keyless Entry (RKE)
transmitter’s LOCK and UNLOCK buttons, at the
same time, for about ve seconds to start the TPMS
learn mode. The horn sounds twice indicating the
TPMS receiver is ready and in learn mode.
4. Start with the driver side front tire. The driver side
front turn signal also comes on to indicate that
corner’s sensor is ready to be learned.
5. Remove the valve cap from the tire’s valve
stem. Activate the TPMS sensor by increasing
or decreasing the tire’s air pressure for about
eight seconds. The horn chirp, can take up to
30 seconds to sound. It chirps one time and then
all the turn signals ash one time to con rm the
sensor identi cation code has been matched to
the tire/wheel position.
6. The passenger side front turn signal comes on to
indicate that corner sensor is ready to be learned.
Proceed to the passenger side front tire and
repeat the procedure in Step 5.7. The passenger side rear turn signal comes on to
indicate that corner sensor is ready to be learned.
Proceed to the passenger side rear tire and
repeat the procedure in Step 5.
8. The driver side rear turn signal comes on to
indicate that corner sensor is ready to be learned.
Proceed to the driver side rear tire, and repeat
the procedure in Step 5.
9. After hearing the single horn chirp for the driver
side rear tire, two additional horn chirps sound
to indicate the tire learning process is done.
Turn the ignition switch to LOCK/OFF.
If no tires are learned after entering the TPMS learn
mode, or if communication with the receiver stops, or
if the time limit has expired, turn the ignition switch to
LOCK/OFF and start over beginning with Step 2.
10. Set all four tires to the recommended air pressure
level as indicated on the Tire and Loading
Information label.
11. Put the valve caps back on the valve stems.
5-65
Page 331 of 420

If you need to replace any of your wheels, wheel bolts,
wheel nuts, or Tire Pressure Monitor System (TPMS)
sensors, replace them only with new GM original
equipment parts. This way, you will be sure to have the
right wheel, wheel bolts, wheel nuts, and TPMS sensors
for your vehicle.
{CAUTION:
Using the wrong replacement wheels, wheel bolts,
or wheel nuts on your vehicle can be dangerous.
It could affect the braking and handling of your
vehicle, make your tires lose air and make you
lose control. You could have a collision in which
you or others could be injured. Always use the
correct wheel, wheel bolts, and wheel nuts for
replacement.Notice:The wrong wheel can also cause problems
with bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper height,
vehicle ground clearance, and tire or tire chain
clearance to the body and chassis.
SeeChanging a Flat Tire on page 5-76for more
information.
Used Replacement Wheels
{CAUTION:
Putting a used wheel on the vehicle is dangerous.
You cannot know how it has been used or how
far it has been driven. It could fail suddenly and
cause a crash. If you have to replace a wheel,
use a new GM original equipment wheel.
5-73
Page 362 of 420

Fuses Usage
8 Horn
9 Right Headlamp Low-Beam
10 Front Fog Lamps
11 Left Headlamp High-Beam
12 Right Headlamp High-Beam
13Engine Control Module BATT
(LY7 & LE5)
14 Windshield Wiper
15 Antilock Brake System (IGN 1)
16Engine Control Module IGN 1
(LY7 & LE5)
17 Cooling Fan 1
18 Cooling Fan 2
19Run Relay, Heating, Ventilation,
Air Conditioning Blower
20 Body Control Module 1
21 Body Control Module Run/Crank
22 Rear Electrical Center 1
23 Rear Electrical Center 2
24 Antilock Brake SystemFuses Usage
25 Body Control Module 2
26 Starter
41 Electric Power Steering
42Transmission Control Module
Battery
43Ignition Module (LZ4, LZE & LE5);
Injectors, Ignition Coils Odd (LY7)
44Injectors (LZ4, LZE & LE5);
Injectors, Ignition Coils Even (LY7)
45Post Cat 02 Sensor Heaters
(LY7, LZ4 & LZE)
46 Daytime Running Lamps
47 Center High-Mounted Stoplamp
50 Driver Power Window
51Engine Control Module BATT
(LZ4 & LZE)
52 AIR Solenoid
54 Regulated Voltage Control
55 DC/AC Inverter
56 Antilock Brake System BATT
5-104