2007 CHEVROLET OPTRA 5 ECU

Winter Driving
Here are some tips for winter driving:
•Have your vehicle in good shape for winter.
•You may want to put winter emergency
supplies in your trunk.
Also seeTires on page 303.Include an ice scraper, a small brush or broom,
a supply of windshield washer fluid, a rag,
some winter outer clothing, a small shovel, a
flashlight, a red cloth, and a couple of reflective
warning triangles. And, if you will be driving under
severe conditions, include a small bag of sand,
a piece of old carpet, or a couple of burlap bags to
help provide traction. Be sure you properly
secure these items in your vehicle.
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{CAUTION:
Things you put inside your vehicle can
strike and injure people in a sudden stop
or turn, or in a crash.
Put things in the trunk of your vehicle.
In a trunk, put them as far forward as
you can. Try to spread the weight
evenly.
Never stack heavier things, like
suitcases, inside the vehicle so that
some of them are above the tops of
the seats.
Do not leave an unsecured child
restraint in your vehicle.
When you carry something inside the
vehicle, secure it whenever you can.
Do not leave a seat folded down
unless you need to.
Towing
Towing Your Vehicle
Consult your dealer or a professional towing
service if you need to have your disabled vehicle
towed. SeeRoadside Assistance Program on
page 394.
If you want to tow your vehicle behind another
vehicle for recreational purposes (such as
behind a motorhome), see “Recreational Vehicle
Towing” following.
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Adding Coolant
If you need more coolant, add the proper
DEX-COOL®coolant mixture at the coolant surge
tank, but only when the engine is cool. If the
coolant surge tank is empty, a special fill
procedure is necessary. SeeEngine Overheating
on page 271for instructions on “How to Add
Coolant to the Coolant Surge Tank.”
{CAUTION:
You can be burned if you spill coolant on
hot engine parts. Coolant contains
ethylene glycol, and it will burn if the
engine parts are hot enough. Do not spill
coolant on a hot engine.
When replacing the pressure cap, make sure it is
hand-tight and fully seated.
Coolant Surge Tank Pressure Cap
Notice:If the pressure cap is not tightly
installed, coolant loss and possible engine
damage may occur. Be sure the cap is properly
and tightly secured.
Engine Overheating
You will find a coolant temperature gage on your
vehicle’s instrument panel cluster. SeeEngine
Coolant Temperature Gage on page 171.
271

Center High-Mounted Stoplamp
(CHMSL) (Wagon)
To replace a CHMSL bulb on a wagon model,
do the following:
1. Open the liftgate. SeeLiftgate on page 99
for more information.
2. Remove the two screws and the liftgate
trim cover.3. Remove the bulb socket from the lamp
housing.
4. Remove the bulb by pulling it straight out of
the bulb socket.
5. Install the new bulb.
6. Reinstall the liftgate trim cover and secure
with the two screws to secure.
297

Used Replacement Wheels
{CAUTION:
Putting a used wheel on your 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.
Tire Chains
Notice:Use tire chains only where legal and
only when you must. Use only SAE Class
“S” type chains that are the proper size for
your tires. Install them on the front tires
and tighten them as tightly as possible with
the ends securely fastened. Drive slowly
and follow the chain manufacturer’s
instructions. If you can hear the chains
contacting your vehicle, stop and retighten
them. If the contact continues, slow down
until it stops. Driving too fast or spinning
the wheels with chains on will damage your
vehicle.
323

Storing a Flat or Spare Tire
and Tools
{CAUTION:
Storing a jack, a tire, or other equipment
in the passenger compartment of the
vehicle could cause injury. In a sudden
stop or collision, loose equipment could
strike someone. Store all these in the
proper place.To store a flat or spare tire, do the following:
1. Put the flat or spare tire in the compact spare
tire compartment, then secure the retainer.
2. Store the jack in its housing in the cargo area.
Secure the jack by turning the retainer
clockwise.
3. Store the tools securely in the foam tray and
place the tray on top of the tire.
4. Replace the trim cover.
The compact spare tire is for temporary use only.
Replace the compact spare tire with a full-size
tire as soon as you can. SeeCompact Spare Tire
on page 334.
333

There are spare fuses provided in the engine
compartment fuse block. If you ever have a problem
on the road and do not have a spare fuse, you can
borrow one that has the same amperage. Just pick
a feature of your vehicle that you can get along
without — like the radio or cigarette lighter — and
use its fuse, if it is the correct amperage. Replace it
as soon as you can.
There are two fuse blocks in your vehicle: the
instrument panel fuse block and the engine
compartment fuse block.
There is a fuse puller located on the engine
compartment fuse block. It can be used to easily
remove fuses from the fuse block.Instrument Panel Fuse Block
The instrument panel fuse block is located on
the end of the instrument panel, on the driver’s
side of the vehicle. To access the fuses, open the
fuse panel door by pulling out.
To reinstall the door, insert the tabs at the back
end first, then push the door into the instrument
panel to secure it.
347

Fuses Usage
LTR Cigarette Lighter
CLSTR BTSICluster, Brake Transmission Shift
Interlock/Automatic Transaxle Shift
Lock (BTSI) Solenoid
RKE Remote Keyless Entry
BCK/UP Back-up
BLANK Not Used
TCM Transmission Control Module
BLANK Not Used
ENG FUSE
BOX DRLEngine Fuse Box, Daytime Running
Lamps
HAZRD LAMPS Hazard Lamps
A/C CLK Air Conditioning Switch, Clock
HVACHeating, Ventilation and Air
Conditioning
RKE Remote Keyless Entry
RADIO Radio
S/ROOF Sunroof
DLC Data Link Connector
SPARE SpareEngine Compartment Fuse Block
The engine compartment fuse block is located on
the driver’s side of the vehicle, near the battery.
SeeEngine Compartment Overview on page 258
for more information on location. To access the
fuses, press in the top flap to release the cover.
To reinstall the cover, push the cover until it is
secure.
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