brake sensor GMC SIERRA 2007 Owner's Manual

When the System Does Not Seem to
Work Properly
If the URPA system will not activate due to a
temporary condition, the message PARK ASSIST
OFF will be displayed on the DIC screen and a
red light will come on the URPA display when the
shift lever is moved into REVERSE (R). This
occurs under the following conditions:
The driver disables the system.
The parking brake pedal is depressed.
A trailer was attached to your vehicle, or a
bicycle or an object was hanging out of your
trunk during your last drive when you turned off
the vehicle. If the attached objects are removed
from your vehicle before the start of your next
drive, the system will return to normal operation
unless an object is detected when the vehicle is
shifted into REVERSE (R). If this occurs, URPA
assumes the object is still attached, so you will
have to wait until the vehicle is driven forward
above 15 mph (25 km/h) before URPA will
return to normal operation.
The ultrasonic sensors are not kept clean. So,
be sure to keep your vehicle’s rear bumper free
of mud, dirt, snow, ice, and slush. For cleaning
instructions, seeWashing Your Vehicle on
page 601. If the DIC still displays the PARK
ASSIST OFF message after cleaning the
bumper and driving forward at a speed of at
least 15 mph (25 km/h), see your dealer.
Other conditions that may affect system
performance include vibrations from a
jackhammer or the compression of air brakes
on a very large truck or other mechanical
devices that interfere with URPA performance.
When URPA is disabled without driver action
and the driver attempts to turn URPA back on
by pressing the rear park aid button, the
indicator light will ash for 3 seconds and then
stay lit to indicate that URPA is off.
As always, drivers should use care when backing
up a vehicle. Always look behind you, being
sure to check for other vehicles, obstructions and
blind spots.
231

OUTPUT shows the power output to the trailer
anytime a trailer with electric brakes is connected.
Output is displayed in 0 to 10 bars. Dashes
may appear in the OUTPUT display. See
“Integrated Trailer Brake Control System” under
Towing a Trailer on page 445for more information.
Engine Hours
Press the vehicle information button until ENGINE
HOURS displays. This display shows the total
number of hours the engine has run.
Relearn Tire Positions
If your vehicle has a Tire Pressure Monitor (TPM)
system, after rotating the tires or after replacing a
tire or sensor, the system must re-learn the tire
positions. To re-learn the tire positions, seeTire
Pressure Monitor System on page 561. SeeTire
Inspection and Rotation on page 565andDIC
Warnings and Messages on page 279for more
information.
Relearn Remote Key
This display allows you to match Remote Keyless
Entry (RKE) transmitters to your vehicle. To
match an RKE transmitter to your vehicle, do the
following:
1. Press the vehicle information button until
PRESS
VTO RELEARN REMOTE KEY
displays.
2. Press the set/reset button until REMOTE KEY
LEARNING ACTIVE is displayed.
3. Press and hold the lock and unlock buttons
on the rst transmitter at the same time for
about 15 seconds.
On vehicles with memory recall seats, the rst
transmitter learned will match driver 1 and
the second will match driver 2.
A chime will sound indicating that the
transmitter is matched.
4. To match additional transmitters at this time,
repeat Step 3.
Each vehicle can have a maximum of
eight transmitters matched to it.
5. To exit the programming mode, you must
cycle the key to LOCK.
274

To adjust this setting, see “Integrated Trailer
Brake Control System” underTowing a Trailer on
page 445for more information.
OUTPUT shows the power output to the trailer
anytime a trailer with electric brakes is connected.
Output is displayed in 0 to 10 bars. Dashes
may appear in the OUTPUT display. See
“Integrated Trailer Brake Control System” under
Towing a Trailer on page 445for more information.
Oil Life
To access this display, the vehicle must be in
PARK (P). Press the trip odometer reset stem until
OIL LIFE REMAINING displays. This display
shows an estimate of the oil’s remaining useful
life. If you see 99% OIL LIFE REMAINING on the
display, that means 99% of the current oil life
remains. The engine oil life system will alert you to
change your oil on a schedule consistent with
your driving conditions.
When the remaining oil life is low, the CHANGE
ENGINE OIL SOON message will appear on the
display. See “CHANGE ENGINE OIL SOON” under
DIC Warnings and Messages on page 279. You
should change your oil as soon as you can.SeeEngine Oil (Gasoline Engine) on page 500.In
addition to the engine oil life system monitoring the
oil life, additional maintenance is recommended in
the Maintenance Schedule in this manual. See
Scheduled Maintenance (Gasoline Engine) on
page 623for more information.
Remember, you must reset the OIL LIFE display
yourself after each oil change. It will not reset
itself. Also, be careful not to reset the OIL LIFE
display accidentally at any time other than
when the oil has just been changed. It cannot be
reset accurately until the next oil change. To
reset the engine oil life system, seeEngine Oil
Life System on page 503.
Relearn Tire Positions
To access this display, the vehicle must be in
PARK (P). If your vehicle has a Tire Pressure
Monitor (TPM) system, after rotating the tires or
after replacing a tire or sensor, the system
must re-learn the tire positions. To re-learn the tire
positions, seeTire Pressure Monitor System on
page 561. SeeTire Inspection and Rotation
on page 565andDIC Warnings and Messages on
page 279for more information.
277

As soon as it is safe to do so, carefully pull your
vehicle over to the side of the road and turn
the ignition off. Check the wiring connection to the
trailer and turn the ignition back on. This
message clears if the trailer is reconnected. This
message also clears if you acknowledge it. If
this message still displays, either your vehicle or
the trailer needs service. See your dealer.
See “Integrated Trailer Brake Control System”
underTowing a Trailer on page 445for more
information.
DRIVER DOOR OPEN
This message displays and a chime sounds if the
driver’s door is not fully closed and the vehicle
is in a drive gear. Stop and turn off the vehicle,
check the door for obstructions, and close the door
again. Check to see if the message still appears
on the DIC.
ENGINE HOT A/C (Air Conditioning)
TURNED OFF
This message displays when the engine coolant
becomes hotter than the normal operating
temperature. SeeEngine Coolant Temperature
Gage on page 258. To avoid added strain on a hot
engine, the air conditioning compressor
automatically turns off. When the coolant
temperature returns to normal, the air conditioning
compressor turns back on. You can continue to
drive your vehicle.
If this message continues to appear, have the
system repaired by your dealer as soon as
possible to avoid damage to the engine.
ENGINE OIL LOW ADD OIL
If your vehicle has an oil level sensor, this
message displays if the oil level in the vehicle is
low. Check the oil level and correct it as
necessary. You may need to let the vehicle cool
or warm up and cycle the ignition to be sure
this message clears.
This message clears itself after 10 seconds, until
the next ignition cycle. SeeEngine Oil (Gasoline
Engine) on page 500for additional information.
281

TIGHTEN GAS CAP
This message may display along with the check
engine light on the instrument panel cluster if
the vehicle’s fuel cap is not tightened properly. See
Malfunction Indicator Lamp on page 260.
Reinstall the fuel cap fully. SeeFilling the Tank on
page 493. The diagnostic system can determine
if the fuel cap has been left off or improperly
installed. A loose or missing fuel cap allows fuel to
evaporate into the atmosphere. A few driving
trips with the cap properly installed should turn this
light and message off.
TIRE LEARNING ACTIVE
If your vehicle has a Tire Pressure Monitor (TPM)
system, this message displays when the system
is re-learning the tire positions on your vehicle.
SeeDIC Operation and Displays (With DIC
Buttons) on page 268orDIC Operation and
Displays (Without DIC Buttons) on page 275for
more information. The tire positions must be
re-learned after rotating the tires or after replacing
a tire or sensor. SeeTire Inspection and
Rotation on page 565,Tire Pressure Monitor
System on page 561, andInation - Tire Pressure
on page 559for more information.
TRACTION CONTROL OFF
If your vehicle has StabiliTrak®, this message
displays when the Traction Control System (TCS)
is turned off. Adjust your driving accordingly.
SeeStabiliTrak
®System on page 381for more
information.
TRAILER CONNECTED
On vehicles with the Integrated Trailer Brake
Control (ITBC) system, this message displays
briey when a trailer with electric brakes is
rst connected to the vehicle.
This message clears itself after several seconds.
This message also clears if you acknowledge
it. After this message clears, the TRAILER
GAIN/OUTPUT display appears in the DIC.
See “TRAILER GAIN/OUTPUT” underDIC
Operation and Displays (With DIC Buttons) on
page 268orDIC Operation and Displays (Without
DIC Buttons) on page 275and “Integrated
Trailer Brake Control System” underTowing a
Trailer on page 445for more information.
288

The Tire and Loading Information label (tire
information placard) shows the size of your
vehicle’s original tires and the correct ination
pressure for your vehicle’s tires when they
are cold. SeeInation - Tire Pressure on
page 559. For the location of the tire and loading
information label, seeLoading Your Vehicle
on page 425.
Your vehicle’s TPMS can alert you about a low
tire pressure condition but it does not replace
normal tire maintenance. SeeTire Inspection and
Rotation on page 565andTires on page 550.
Notice:Do not use a tire sealant if your
vehicle has Tire Pressure Monitors. The liquid
sealant can damage the tire pressure monitor
sensors.
Resetting the TPMS Identication Codes
Each TPMS sensor has a unique identication
code. Any time you rotate your vehicle’s tires or
replace one or more of the TPMS sensors,
the identication codes will need to be matched to
the new tire/wheel position. The sensors arematched to the tire/wheel positions in the following
order: driver’s side front tire, passengers side
front tire, passengers side rear tire, and driver’s
side rear tire using a TPMS diagnostic tool.
See your GM dealer for service.
The TPMS sensors may also be matched to each
tire/wheel position by increasing or decreasing
the tire’s air pressure. If increasing the tire’s
air pressure, do not exceed the maximum ination
pressure indicated on the tire’s sidewall.
You will have two minutes to match the rst
tire/wheel position, and ve minutes overall to
match all four tire/wheel positions. If it takes longer
than two minutes, to match the rst tire and
wheel, or more than ve minutes to match all four
tire and wheel positions the matching process
stops and you will need to start over.
The TPMS sensor matching process is
outlined below:
1. Set the parking brake.
2. Turn the ignition switch to RUN with the
engine off.
563

Fuses Usage
9 Oxygen Sensors
10 Anti-lock Brakes System 2
11 Trailer Back-up Lamps
12 Driver’s Side Low-Beam Headlamp
13 Engine Control Module (Battery)
14 Fuel Injectors, Ignition Coils (Right Side)
15 Transmission Control Module (Battery)
16 Vehicle Back-up Lamps
17 Passenger’s Side Low-Beam Headlamp
18 Air Conditioning Compressor
19 Oxygen Sensors
20 Transmission Controls (Ignition)
21 Fuel Pump
22 Fuel System Control Module
23 Not Used
24 Not Used
25 Fuel Injectors, Ignition Coils (Left Side)
26 Trailer Park Lamps
27 Driver’s Side Park Lamps
28 Passenger’s Side Park Lamps
29 Fog Lamps
30 Horn
31 Passenger’s Side High-Beam HeadlampFuses Usage
32 Daytime Running Lamps
33 Driver’s Side High-Beam Headlamp
34 Not Used
35 Sunroof
36Key Ignition System, Theft Deterrent
System
37 Windshield Wiper
38 SEO B2 Uptter Usage (Battery)
39 Electric Adjustable Pedals
40 Climate Controls (Battery)
41 Airbag System (Ignition)
42 Amplier
43 Audio System
44 Miscellaneous (Ignition), Cruise Control
45 Tailgate Open/Close Assist
46 Airbag System (Battery)
47OnStar
®, Rear Seat Entertainment
Display
48 Instrument Panel Cluster
49 Power Take-Off
50Auxiliary Climate Control (Ignition),
Compass-Temperature Mirror
51Center High-Mounted Stoplamp
(CHMSL)
614