sensor CHEVROLET VENTURE 2004 1.G Owners Manual

In many crashes severe enough to inate an air bag,
windshields are broken by vehicle deformation.
Additional windshield breakage may also occur from the
right front passenger air bag.
Air bags are designed to inate only once. After an
air bag inates, you’ll need some new parts for
your air bag system. If you do not get them, the air
bag system will not be there to help protect you
in another crash. A new system will include air bag
modules and possibly other parts. The service
manual for your vehicle covers the need to replace
other parts.
Your vehicle is equipped with two electronic frontal
sensors, which help the sensing system distinguish
between a moderate frontal impact and a more
severe frontal impact. Your vehicle is also equipped
with a crash sensing and diagnostic module,
which records information about the frontal air bag
system. The module records information about
the readiness of the system, when the system
commands air bag ination and driver’s safety belt
usage at deployment. The module also records
speed, engine rpm, brake and throttle data.
Let only qualied technicians work on your air bag
systems. Improper service can mean that an air
bag system will not work properly. See your dealer
for service.
Notice:If you damage the covering for the driver’s
or the right front passenger’s air bag, or the air
bag covering on the driver’s and right front
passenger’s seatback, the air bag may not work
properly. You may have to replace the air bag
module in the steering wheel, both the air bag
module and the instrument panel for the right front
passenger’s air bag, or both the air bag module
and seatback for the driver’s and right front
passenger’s side impact air bag. Do not open or
break the air bag coverings.
1-101

Warm-Up Shift
Your vehicle has a computer controlled transaxle
designed to warm up the engine faster when the outside
temperature is 35°F (2°C) or colder. You may notice
that the transaxle will shift at a higher vehicle speed until
the engine is warmed up. This is a normal condition
designed to provide heat to the passenger compartment
and defrost the windows more quickly. SeeClimate
Control System on page 3-21for more information.
THIRD (3):This position is also used for normal driving,
but it offers more power and lower fuel economy than
AUTOMATIC OVERDRIVE (D).
Here are some times you might choose THIRD (3)
instead of AUTOMATIC OVERDRIVE (D):
When driving on hilly, winding roads
When towing a trailer, so there is less shifting
between gears
When going down a steep hill
SECOND (2):This position gives you more power but
lower fuel economy than THIRD (3). You can use
SECOND (2) on hills. It can help control your speed as
you go down steep mountain roads, but then you
would also want to use your brakes off and on.Notice:Driving in SECOND (2) for more than
25 miles (40 km) or at speeds over 55 mph (90 km/h)
may damage the transaxle. Also, shifting into
SECOND (2) at speeds above 65 mph (105 km/h) can
cause damage. Drive in THIRD (3) or AUTOMATIC
OVERDRIVE (D) instead of SECOND (2).
Notice:If your vehicle seems to start up rather
slowly, or if it seems not to shift gears as you go
faster, something may be wrong with a transaxle
system sensor. If you drive very far that way, your
vehicle can be damaged. So, if this happens, have
your vehicle serviced right away. Until then, you can
use SECOND (2) when you are driving less than
35 mph (55 km/h) and THIRD (3) for higher speeds.
FIRST (1):This position gives you even more power but
lower fuel economy than SECOND (2). You can use it
on very steep hills, or in deep snow or mud. If the
shift lever is put in FIRST (1), the transaxle will not
downshift into rst gear until the vehicle is going slow
enough.
Notice:Spinning the tires or holding the vehicle in
one place on a hill using only the accelerator
pedal may damage the transaxle. If you are stuck,
do not spin the tires. When stopping on a hill,
use the brakes to hold the vehicle in place.
2-38

Lamps on Reminder
If the driver’s door is opened and you turn the ignition to
OFF or LOCK while leaving the lamps on, you will
hear a warning chime.
Daytime Running Lamps/Automatic
Headlamp System
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the
day. DRL can be helpful in many different driving
conditions, but they can be especially helpful in the short
periods after dawn and before sunset. Fully functional
daytime running lamps are required on all vehicles
rst sold in Canada.
A light sensor on top of the instrument panel makes the
DRL work, so be sure it is not covered. The DRL
system will make front parking and turn signal lamps
come on in daylight when the following conditions
are met:
The ignition is on
The exterior lamps control is off
The parking brake is released
When the DRL are on, only your front parking and turn
signal lamps will be on. Your instrument panel will
not be lit up.When it is dark enough outside, the exterior lamps will
come on automatically. When it is bright enough
outside, the exterior lamps will turn off and the DRL will
turn on. Of course, you may still turn on the headlamps
any time you need to.
If you start your vehicle in a dark garage, the automatic
headlamp system will come on immediately. Once
you leave the garage, it will take approximately
one minute for the automatic headlamp system to
change to DRL if it is light outside. During that delay,
your instrument panel cluster may not be as bright
as usual. Make sure your instrument panel brightness
control is in the full bright position. See “Instrument
Panel Brightness Control” underInterior Lamps
on page 3-18.
To idle your vehicle with the DRL and automatic
headlamps off, set the parking brake while the ignition is
in OFF or LOCK. Then start the vehicle. The DRL
and automatic headlamps will stay off until you release
the parking brake.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
3-17

Overhead Console Switchbank
The overhead console switchbank is located in the
overhead console. This switchbank may include
the following:
Interior Lamps Override. See “Interior Lamps
Override” underInterior Lamps on page 3-18.
Power Sliding Door(s)/Override Switch(es). See
Power Sliding Door (PSD) on page 2-16.
Power Rear Quarter Windows. SeePower Rear
Quarter Windows on page 2-26.
Ultrasonic Rear Parking Aid (URPA) Disable
Switch. SeeUltrasonic Rear Parking Assist (URPA)
on page 3-22.
If your vehicle does not have some of these options,
there will be a blank.
Ultrasonic Rear Parking Assist
(URPA)
The Ultrasonic Rear Parking Assist (URPA) system is
designed to help you park, while the vehicle is in
REVERSE (R). It operates only at very low speeds, less
than 3 mph (5 km/h). URPA can help make parking
easier and to help you avoid colliding with objects such as
parked vehicles. The URPA system can detect objects up
to 5 feet (1.5 m) behind the vehicle, and tell you how
close these objects are from your rear bumper.
Your vehicle’s URPA operates when the shift lever is
moved into REVERSE (R) and the vehicle speed is less
than 3 mph (5 km/h). Four ultrasonic sensors located at
the rear bumper are used to detect the distance to the
object. The URPA display is located inside the vehicle,
near the rear window. It has three color-coded lights used
to provide distance and system information to the driver.
3-22

How the System Works
Unless disabled, the URPA will turn on automatically
when the shift lever is moved into REVERSE (R). When
the system turns on, the three lights on the display will
illuminate for one and a half seconds to let you know that
the system is working. If your vehicle is moving in
REVERSE (R) at a speed greater than 3 mph (5 km/h),
the red light will ash to remind you that the system does
not work at speed greater than 3 mph (5 km/h).
If an object is detected at a REVERSE (R) speed of
less than 3 mph (5 km/h), one of the following will occur:
Description English Metric
amber light 5 ft. 1.5 m
amber/amber lights 40 in. 1.0 m
amber/amber/red lights &
continuous chime20 in. 0.5 m
amber/amber/red lights
ashing & continuous
chime1 ft 0.3 m
A chime will sound the rst time an object is detected
between 20 inches (0.5 m) and 5 feet (1.5 m) away.
URPA cannot detect objects that are above liftgate level.
In order for the rear sensors to recognize an object, it
must be within detection range behind the vehicle.
When the System Does Not Seem to Work
Properly
The light may ash red when the vehicle is in
REVERSE (R) if the ultrasonic sensors are not kept
clean. So be sure to keep your rear bumper free of mud,
dirt, snow, ice and slush. Other conditions that may affect
system performance include things like the vibrations
from a jackhammer or the compression of air brakes on a
very large truck. If after cleaning the rear bumper and
then driving forward at least 15 mph (25 km/h), the
display continues to ash red, see your dealer.
If a trailer was attached to your vehicle, or a bicycle or an
object was on the back of, or hanging out of your liftgate
during your last drive cycle, the light may also ash red.
The light will continue to ash whenever in REVERSE (R)
until your vehicle is driven forward at least 15 mph
(25 km/h) without any obstructions behind the vehicle.
For cleaning instructions, seeCleaning the Outside of
Your Vehicle on page 5-100.
3-24

Safety Belt Reminder Light
When the key is turned to RUN or START, a chime will
come on for several seconds to remind people to
fasten their safety belts.
The safety belt light will
also come on and stay on
for several seconds. If
the driver’s belt is already
buckled, neither the
chime nor the light will
come on.
Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel, which shows the air bag symbol. The system
checks the air bag’s electrical system for malfunctions.
The light tells you if there is an electrical problem.
The system check includes the air bag sensor, the air
bag modules, the wiring and the diagnostic module. For
more information on the air bag system, seeAir Bag
Systems on page 1-84.This light will come on
when you start your
vehicle, and it will ash for
a few seconds. Then the
light should go out. This
means the system is ready.
If the air bag readiness light stays on after you start the
vehicle or comes on when you are driving, your air
bag system may not work properly. Have your vehicle
serviced right away.
{CAUTION:
If the air bag readiness light stays on after you
start your vehicle, it means the air bag system
may not be working properly. The air bags in
your vehicle may not inate in a crash, or they
could even inate without a crash. To help avoid
injury to yourself or others, have your vehicle
serviced right away if the air bag readiness light
stays on after you start your vehicle.
3-41

Manual Compass Calibration
If the compass appears erratic and the calibration
symbol does not appear, you must manually put the
compass into the calibration mode.
Turn the ignition on and cycle the DIC to the
compass/temperature mode. Press both the E/M and
MODE buttons simultaneously for at least 10 seconds
until the calibration symbol appears. Release both
buttons and complete three 360° turns in an area free
from large metal objects. The calibration symbol will turn
off and the compass reading will be displayed.
Error Displays

An error of the vehicle’s speed sensor or fuel
sender will cause -E- to be displayed.
In the absence of vehicle communications, a dash
“- -” is displayed.
If one of these error messages appear, see your dealer.
Trip Computer
There are ve trip computer displays available by
pushing the MODE button. The information will appear
in the following order:
AVG ECON (Average Fuel Economy):This shows the
average fuel economy since the last reset.INST ECON (Instant Fuel Economy):This shows fuel
economy for the most recent second of driving.
RANGE (Trip Range):This shows the estimated
distance that can be traveled with the remaining fuel.
The fuel economy used to calculate range is based
on the last few hours of driving.
FUEL USED (Trip Fuel Used):This shows the
accumulated fuel used since the last reset.
AVG SPEED (Average Speed):This shows the
average speed since the last reset.
Resetting the Trip Computer
Press and hold the MODE and E/M buttons for at least
two seconds. The reset is acknowledged with the
display showing all segments briey. A reset can only
be done in AVG ECON, FUEL USED and AVG SPEED
displays. AVG ECON, FUEL USED and AVG SPEED
can only be reset independently. Only the mode
that is displayed will be reset.
3-60

Fuse Usage
PWR LOCK Power Door Locks
HTD MIRROR Heated Mirrors
RH T/LP Not Used
RR FOG LP Not Used
CIGAR/DIC/
APO FRTCigarette Lighter, DIC, Front
Auxiliary Power Outlets, Data Link
T/SIG Turn Signal Switch
PWR QTR
VENTInterior Lamp and Multifunction
Switch (Power Vent Switch), Auto
Level
FRT/WPR/
WSHRWindshield Wiper/Washer Motor and
Switch
HAZARD Hazard Switch
RR PWR SCKTRear Electric Accessory Plug
Housing
DRLDaytime Running Lamp Control
Module
LH T/LP Not Used
RR
DEFOG/HTD
MIRRORRear Window Defogger Relay,
Heated Mirrors
ON STAR OnStar
®
SIR Inatable Restraint Control Module
HVAC
BLOWERHeater-A/C Control
Fuse Usage
MALL
CLUSTERInstrument Cluster, Body Control
Module, Electronic Level Control
(ELC) Sensor and Relay, Theft,
Door Ajar
STOP LAMP Stoplamp Switch
CLUSTER
BATTModule/Electronic Brake Control
Module/Electronic Brake Traction
Control Module (EBCM/EBTCM)
ENHANCED
EVAP/AWDEvaporative Emissions (EVAP)
Canister Vent Solenoid Valve,
All-Wheel Drive (AWD)
Blank Not Used
ELC/TRAILERELC Air Compressor and ELC
Height Sensor, Trailer Harness
CTSY LAMP Courtesy Lamp
IGN 1BCM, Electronic Brake Control
Indicator Lamp Driver Module,
Instrument Panel Cluster, Rear Side
Door Actuator Control Module, Rear
Windows, Rear Parking Aid
RR HVAC
TEMP CONTRear HVAC-A/C Control
RR
WPR/WSHRRear Window Wiper Motor, Rear
Window Wiper/Washer and
Multifunction Switch (Rear Window
Wiper/Washer Switch)
5-108

Fuse Usage
7Fuses (Instrument Panel): ABS
Module Battery, Cigarette Lighter,
Courtesy Lamps, Front Power
Socket, Power Locks, Power Mirrors
and Right Rear Power Socket,
OnStar, RAP
8Ignition Switch to Fuses (I/P): Body
Control Module Program, Front
Comfort Controls Low/Medium
Blower, Front Wiper/Washer,
HVAC/DRL, MALL/Radio/DIC,
Power Quarter Vent, Rear HVAC,
Rear Wiper/Washer. SWC
Accessory and Power Window
Circuit Breaker, RAP
18 Fuel Injectors 1–6
19 Not Used
20 Not Used
21Evaporative Emissions (EVAP)
Canister Purge Valve, Heated
Oxygen Sensors 1 and 2, Mass Air
Flow (MAF) SensorFuse Usage
22 Not Used
23 Not Used
24 Not Used
25 Ignition Control Module (ICM)
26 Not Used
27Transaxle Range Switch to Back-up
Lamps
28A/C Clutch Relay to A/C
Compressor Clutch Oil
29Driver Information Display, Heater
A/C Control, Radio, Rear (LH and
RH) Side Door Actuator Control
Motor, Remote Control Door Lock
Receiver (RCDLR), Security
Indicator Lamp and Theft-Deterrent
Shock Sensor
30 Generator
31Automatic Transaxle (Torque
Converter Clutch Solenoids)
Stoplamp Switch to Powertrain
Control Module
5-111