2011 CHEVROLET VOLT ECU

Black plate (9,1)Chevrolet Volt Owner Manual - 2011
Vehicle Care 10-9
Keep a record with all parts receipts
and list the mileage and the date
of any service work performed.
SeeMaintenance Records on
page 11‑8.
Hood
To open the hood:
1. Turn the vehicle off before opening the hood. If the
vehicle is on, the engine will
start when the hood is opened.
See Electric Mode on page 9‑25
and Extended Range Mode on
page 9‑25.
2. Pull the release handle with this symbol. It is below the
instrument panel to the left
of the steering wheel.
3. Go to the front of the vehicle andlocate the secondary release
lever under the front center of
the hood. Push the secondary
hood release lever to the right
to disengage.
4. Lift the hood and release the hood prop rod from its retainer
above the radiator support.
Place the prop rod securely into
the slotted retainer in the hood. To close the hood:
1. Before closing the hood, check
that all filler caps are properly
installed. Then, lift the hood
to relieve pressure on the
hood prop.
2. Remove the hood prop from the slotted retainer in the hood
and return it to its retainer above
the radiator support. The prop
rod must lock into place when
returning it to the retainer to
prevent hood damage.
3. Lower the hood 20 cm (8 in) above the vehicle and release
it so it fully latches. Check to
make sure the hood is firmly
closed. Repeat the process if
necessary.

Black plate (17,1)Chevrolet Volt Owner Manual - 2011
Vehicle Care 10-17
To inspect or replace the air filter:
1. Open the hood. SeeHood on
page 10‑9.
2. Locate the engine air cleaner/ filter assembly on the passenger
side of the engine compartment.
See Engine Compartment
Overview on page 10‑10.
A. Retaining Clips
B. Air Duct Clamp
C. Electrical Connector
3. Disconnect the air duct by loosening the air duct clamp (B). 4. Disconnect the electrical
connector (C).
5. Lift the retaining clips (A) from the engine air cleaner/filter
assembly.
6. Turn and tilt the air cleaner cover slightly upward and slide it out.
Remove the air filter.
How to Reinstall the Engine
Air Filter
1. Install the air filter into theengine air cleaner/filter
assembly. The outer air filter
seal must be fitted properly
in the engine air cleaner/filter
assembly.
2. Replace the air cleaner cover by lowering it to meet the bottom
of the engine air cleaner/filter
assembly. Place the retaining
clips (A) on the engine air
cleaner/filter assembly and
secure. The rear tabs must be
secured into the lower portion
of the air cleaner. 3. Reconnect the air duct and
tighten the air duct clamp (B).
4. Reconnect the electrical connector (C).
{WARNING
Operating the engine with the air
cleaner/filter off can cause you
or others to be burned. The air
cleaner not only cleans the air;
it helps to stop flames if the
engine backfires. Use caution
when working on the engine
and do not drive with the air
cleaner/filter off.
Notice: If the air cleaner/filter is
off, dirt can easily get into the
engine, which could damage it.
Always have the air cleaner/filter
in place when you are driving.

Black plate (23,1)Chevrolet Volt Owner Manual - 2011
Vehicle Care 10-23
If coolant is needed, add the proper
DEX-COOL coolant mixture at the
coolant surge tank.
The coolant surge tank pressure
cap can be removed when the
cooling system, including the
surge tank pressure cap and upper
radiator hose, is no longer hot.
1. Turn the pressure cap slowlycounterclockwise. If a hiss is
heard, wait for that to stop.
A hiss means there is still
some pressure left.
2. Keep turning the cap and remove it.
3. Fill the coolant surge tank with
the proper mixture to the cold
fill line.
4. Replace the pressure cap. Be sure the pressure cap is
hand‐tight and fully seated.
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
The vehicle has an indicator to warn
of engine overheating.
If the decision is made not to
lift the hood when this warning
appears, get service help right
away. See Roadside Assistance
Program on page 13‑6.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface.
Then check to see if the engine
cooling fans are running. If the
engine is overheating, the fans
should be running. If they are not,
do not continue to run the vehicle
and have the vehicle serviced.
Notice: Engine damage from
running the engine without
coolant is not covered by the
warranty.

Black plate (35,1)Chevrolet Volt Owner Manual - 2011
Vehicle Care 10-35
Passenger Side Headlamps
To replace the high/low‐beam
headlamp:
1. Open the hood. SeeHood on
page 10‑9.
2. Remove the air cleaner cover. See Engine Air Cleaner/Filter on
page 10‑16.
3. Remove the air cleaner assembly by pulling up to
release the rear two retention
posts from the securing
grommets. Then pull it forward to
remove the remaining retention
post from the securing grommet.
4. Remove the cover from the back
of the headlamp assembly by
turning it counterclockwise.
5. Remove the bulb from the headlamp assembly by turning
it counterclockwise.
6. Disconnect the bulb from the wiring harness connector.
7. Install the new bulb in the headlamp assembly by turning
it clockwise.
8. Reconnect the wiring harness connector.
9. Install the cover on the back of the headlamp assembly by
turning it clockwise.
10. Install the air cleaner assembly by lowering the three retention
posts into the grommets. 11. Install the engine air
cleaner/filter assembly cover.
SeeEngine Air Cleaner/Filter
on page 10‑16.
Back-Up Lamps
The back-up lamp is in the rear
fascia.
To replace a bulb:
1. Remove the two inboard screws from the aero panel located
under the rear fascia.
2. Push up on the aero panel to locate the bulb socket.

Black plate (45,1)Chevrolet Volt Owner Manual - 2011
Vehicle Care 10-45
FusesUsage
F8 Body Control
Module 7/Left Front
Turn Signal/Right
Rear Stop and Turn
Signal Lamp/Child
Security Lock Relay
Control
F9 Body Control
Module 8/Locks
F10 OnStar
®
F11 Universal Garage
Door Opener
(If Equipped)
F12 Blower Motor Fuses Usage
F13 Empty
F14 Empty
F15 Empty
F16 Empty
F17 Empty
F18 Empty
Relays Usage R1 Empty
R2 Empty Relays Usage
R3 Empty
R4 Empty
Diodes Usage DIODE Empty
Rear Compartment Fuse
Block
The rear compartment fuse
block is on the left side of the rear
compartment behind a removable
cover. Open the latch to remove the
cover and access the fuse block.

Black plate (86,1)Chevrolet Volt Owner Manual - 2011
10-86 Vehicle Care
7. When the fascia has enoughclearance to clear the flatbed,
lower the flatbed, and finish
pulling the vehicle onto the
flatbed.
8. Secure the vehicle to the
flatbed (B) using nonabrasive
straps (A) through all four wheel
openings and secure the straps
to the flatbed (B).
If the vehicle is parked off the
shoulder of the road, at an angle
that it cannot be pulled onto a
flatbed, a hook/chain can be placed
into either of the front torque box
openings to pull the vehicle onto
a flat surface. Make sure that the
chains do not come in contact with
the rocker panel (A) or the front
fascia (B).Notice: When using tow straps to
move the vehicle, damage may
occur if the tow straps contact
the rear fascia. Do not let the tow
straps contact the rear fascia.
If you cannot access the front
torque box openings, wrap a tow
strap through one, or both of the
rear trailing arms (A) between the
bushing and torque tube, and pull
the vehicle onto a flat surface.
Do not wrap the tow strap around
the rear torque tube (B).

Black plate (88,1)Chevrolet Volt Owner Manual - 2011
10-88 Vehicle Care
Dolly Towing from the Front
The vehicle can be towed from
the front using a dolly. To tow the
vehicle using a dolly, follow these
steps:
1. Attach the dolly to the towvehicle following the dolly
manufacturer's instructions. 2. Drive the front wheels onto
the dolly.
3. Put the shift lever in P (Park).
4. Set the parking brake and remove the key.
5. Clamp the steering wheel in a straight-ahead position with a
clamping device designed for
towing.
6. Secure the vehicle to the dolly.
7. Release the parking brake.
8. Check for adequate rear fascia to ground clearance.
Dolly Towing from the Rear
Notice: Towing the vehicle from
the rear, with the front wheels
on the ground, could damage
the drive unit, and front fascia.
Do not tow the vehicle from the
rear with the front wheels on the
ground.

Black plate (96,1)Chevrolet Volt Owner Manual - 2011
10-96 Vehicle Care
Floor Mats
{WARNING
If a floor mat is the wrong size or
is not properly installed, it can
interfere with the accelerator
pedal and/or brake pedal.
Interference with the pedals can
cause unintended acceleration
and/or increased stopping
distance which can cause a crash
and injury. Make sure the floor
mat does not interfere with the
accelerator or brake pedal.Use the following guidelines for
proper floor mat usage:
.The original equipment floor
mats were designed for your
vehicle. If the floor mats need
replacing, it is recommended
that GM certified floor mats be
purchased. Non-GM floor mats
may not fit properly and may
interfere with the accelerator or
brake pedal. Always check that
the floor mats do not interfere
with the pedals.
.Use the floor mat with the
correct side up. Do not turn
it over.
.Do not place anything on top of
the driver side floor mat.
.Use only a single floor mat on
the driver side.
.Do not place one floor mat on
top of another.
Removing and Replacing the
Floor Mats
Pull up on the rear of the floor mat
to unlock each retainer and remove.
Reinstall by lining up the floor mat
retainer openings over the carpet
retainers and snap into position.
Make sure the floor mat is properly
secured in place.
Verify the floor mat does not
interfere with the accelerator
or the brake pedal.