check engine light ALFA ROMEO GIULIA 2023 User Guide

GETTING TO KNOW YOUR INSTRUMENT PANEL

80

ONBOARD DIAGNOSTIC SYSTEM (OBD II)
C
YBERSECURITY
Your vehicle is required to have OBD II and a
connection port to allow access to information
related to the performance of your emissions
controls. Authorized service technicians may
need to access this information to assist with the
diagnosis and service of your vehicle and
emissions system.
EMISSIONS INSPECTION
AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement
to pass an inspection of your vehicle's emissions
control system. Failure to pass could prevent
vehicle registration.
For states that require an Inspection
and Maintenance (I/M), this check
verifies the Malfunction Indicator Light
(MIL) is functioning and is not on when
the engine is running, and that the OBD II system
is ready for testing.
Normally, the OBD II system will be ready. The
OBD II system may not be ready if your vehicle
was recently serviced, recently had a depleted
battery or a battery replacement. If the OBD II
system should be determined not ready for the
I/M test, your vehicle may fail the test.
Your vehicle has a simple ignition actuated test,
which you can use prior to going to the test
station. To check if your vehicle's OBD II system is
ready, you must do the following:
1. Cycle the ignition switch to the ON position, but do not crank or start the engine.

NOTE:
If you crank or start the engine, you will have to
start this test over. 2. As soon as you cycle the ignition switch to the
ON position, you will see the Malfunction Indi -
cator Light (MIL) symbol come on as part of a
normal bulb check.
3. Approximately 15 seconds later, one of two things will happen:
• The MIL will flash for about 10 seconds
and then return to being fully illuminateduntil you turn OFF the ignition or start the engine. This means that your vehicle'sOBD II system is not ready and you should
not proceed to the I/M station.
• The MIL will not flash at all and will remain
fully illuminated until you place the ignition
in t

he off position or start the engine. This
means that your vehicle's OBD II system is ready and you can proceed to the I/M
station.
If your OBD II system is not ready, you should see
an authorized dealer or repair facility. If your
vehicle was recently serviced or had a battery
failure or replacement, you may need to do
nothing more than drive your vehicle as you
normally would in order for your OBD II system to
update. A recheck with the above test routine
may then indicate that the system is now ready.
Regardless of whether your vehicle's OBD II
system is ready or not, if the MIL is illuminated
during normal vehicle operation you should have
your vehicle serviced before going to the I/M
station. The I/M station can fail your vehicle
because the MIL is on with the engine running.
WARNING!
ONLY an authorized service technician
should connect equipment to the OBD II
connection port in order to read the VIN,
diagnose, or service your vehicle.
If unauthorized equipment is connected to
the OBD II connection port, such as a
driver-behavior tracking device, it may:
• Be possible that vehicle systems,
including safety related systems, couldbe impaired or a loss of vehicle controlcould occur that may result in an acci-dent involving serious injury or death.
• Access, or allow others to access, infor-
mation stored in your vehicle systems,including personal information.
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SAFETY

150

Air Bag System Components
Occupant Restraint Controller (ORC)
Air Bag Warning Light
Steering Wheel and Column
Instrument Panel
Knee Impact Bolsters
Driver and Front Passenger Air Bags
Seat Belt Buckle Switch
Supplemental Side Air Bags
Supplemental Knee Air Bags
Front and Side Impact Sensors
Seat Belt Pretensioners
Seat Track Position Sensors
Air Bag Warning Light
The Occupant Restraint Controller
(ORC) monitors the readiness of the
electronic parts of the air bag system
whenever the ignition switch is in the
START or ON/RUN position. If the ignition switch
is in the OFF position or in the ACC position, the
air bag system is not on and the air bags will not
inflate.
The ORC contains a backup power supply system
that may deploy the air bag system even if the
battery loses power or it becomes disconnected
prior to deployment.
The ORC turns on the Air Bag Warning Light in the
instrument panel for approximately four to eight
seconds for a self-check when the ignition switch
is first in the ON/RUN position. After the
self-check, the Air Bag Warning Light will turn off.
If the ORC detects a malfunction in any part of the
system, it turns on the Air Bag Warning Light, either momentarily or continuously. A single
chime will sound to alert you if the light comes on
again after initial startup.
The ORC also includes diagnostics that will
illuminate the instrument panel Air Bag Warning
Light if a malfunction is detected that could affect
the air bag system. The diagnostics also record
the nature of the malfunction. While the air bag
system is designed to be maintenance free, if any
of the following occurs, have an authorized dealer
service the air bag system immediately.
The Air Bag Warning Light does not come on
during the four to eight seconds when the
ignition switch is first in the ON/RUN position.
The Air Bag Warning Light remains on after the
four to eight-second interval.
The Air Bag Warning Light comes on intermit
-
tently or remains on while driving.

NOTE:
If the speedometer, tachometer, or any engine
related gauges are not working, the Occupant
Restraint Controller (ORC) may also be disabled.
In this condition the air bags may not be ready to
inflate for your protection. Have an authorized
dealer service the air bag system immediately.
Redundant Air Bag Warning Light
If a fault with the Air Bag Warning Light
is detected, which could affect the
Supplemental Restraint System (SRS),
the Redundant Air Bag Warning Light
will illuminate on the instrument panel. The
Redundant Air Bag Warning Light will stay on until
the fault is cleared. In addition, a single chime will
sound to alert you that the Redundant Air Bag
Warning Light has come on and a fault has been
detected. If the Redundant Air Bag Warning Light
comes on intermittently or remains on while
driving have an authorized dealer service the
vehicle immediately.
For additional information regarding the
Redundant Air Bag Warning Light, see

Ú
page 70.
Front Air Bags
This vehicle has front air bags and lap/shoulder
belts for both the driver and front passenger. The
front air bags are a supplement to the seat belt
restraint systems. The driver front air bag is
mounted in the center of the steering wheel. The
passenger front air bag is mounted in the
instrument panel, above the glove compartment.
The words “SRS AIRBAG” or “AIRBAG” are
embossed on the air bag covers.
WARNING!
Ignoring the Air Bag Warning Light in your
instrument panel could mean you won’t have
the air bag system to protect you in a collision.
If the light does not come on as a bulb check
when the ignition is first turned on, stays on
after you start the vehicle, or if it comes on as
you drive, have an authorized dealer service
the air bag system immediately.
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155

Driver and Front Passenger Air Bags
Seat Belt Buckle Switch
Supplemental Side Air Bags
Supplemental Knee Air Bags
Front and Side Impact Sensors
Seat Belt Pretensioners
Seat Track Position Sensors
If A Deployment Occurs
The front air bags are designed to deflate
immediately after deployment.

NOTE:
Front and/or side air bags will not deploy in all
collisions. This does not mean something is
wrong with the air bag system.
If you do have a collision which deploys the air
bags, any or all of the following may occur:
The air bag material may sometimes cause
abrasions and/or skin reddening to the
occupants as the air bags deploy and unfold.
The abrasions are similar to friction rope burns
or those you might get sliding along a carpet or
gymnasium floor. They are not caused by
contact with chemicals. They are not
permanent and normally heal quickly.
However, if you haven’t healed significantly
within a few days, or if you have any blistering,
see your doctor immediately.

As the air bags deflate, you may see some
smoke-like particles. The particles are a normal
by-product of the process that generates the
non-toxic gas used for air bag inflation. These
airborne particles may irritate the skin, eyes,
nose, or throat. If you have skin or eye irritation,
rinse the area with cool water. For nose or throat
irritation, move to fresh air. If the irritation continues, see your doctor. If these particles
settle on your clothing, follow the garment
manufacturer’s instructions for cleaning.

Do not drive your vehicle after the air bags have
deployed. If you are involved in another collision,
the air bags will not be in place to protect you.

NOTE:

Air bag covers may not be obvious in the
interior trim, but they will open during air bag
deployment.
After any collision, the vehicle should be taken
to an authorized dealer immediately.
Enhanced Accident Response System
In the event of an impact, if the communication
network remains intact, and the power remains
intact, depending on the nature of the event, the
Occupant Restraint Controller (ORC) will
determine whether to have the Enhanced
Accident Response System perform the following
functions:
Cut off fuel to the engine (if equipped)
Cut off battery power to the electric motor (if
equipped)
Flash hazard lights as long as the battery has
power
Turn on the interior lights, which remain on as
long as the battery has power or for
15 minutes from the intervention of the
Enhanced Accident Response System
Unlock the power door locks
Your vehicle may also be designed to perform any
of these other functions in response to the
Enhanced Accident Response System:
Turn off the Fuel Filter Heater, Turn off the
HVAC Blower Motor, Close the HVAC
Circulation Door
Cut off battery power to the: • Engine
• Electric Motor (if equipped)
• Electric power steering
• Brake booster
• Electric park brake
• Automatic transmission gear selector
• Horn
• Front wiper
• Headlamp washer pump (if equipped)

NOTE:
After an accident, remember to cycle the ignition
to the OFF position and remove the key from the
ignition switch to avoid draining the battery. Care -
fully check the vehicle for fuel leaks in the engine
compartment and on the ground near the engine
compartment and fuel tank before resetting the
system and starting the engine. If there are no
fuel leaks or damage to the vehicle electrical
devices (e.g. headlights) after an accident, reset
the system by following the procedure described
below. If you have any doubt, contact an autho -
rized dealer.
WARNING!
Deployed air bags and seat belt pretensioners
cannot protect you in another collision. Have
the air bags, seat belt pretensioners, and the
seat belt retractor assemblies replaced by an
authorized dealer immediately. Also, have the
Occupant Restraint Controller System serviced
as well.
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SAFETY

156

Enhanced Accident Response System Reset Procedure
After the event occurs, when the system is active, a message regarding fuel cutoff is displayed. Turn the ignition switch from ignition ACC or ON/RUN to
ignition OFF. Carefully check the vehicle for fuel leaks in the engine compartment and on the ground near the engine compartment and fuel tank before
resetting the system and starting the engine.
Depending on the nature of the event the left and right turn signal lights, located in the instrument panel, may both be blinking and will continue to blink.
In order to move your vehicle to the side of the road, you must follow the system reset procedure.
Customer Action

NOTE:
Each step MUST BE held for at least two seconds
Customer Will See
1. Turn ignition OFF. (Turn Signal Switch Must be placed in Neutral State).
2. Turn ignition ACC/ON/RUN.Right turn light BLINKS.
Left turn light is OFF.
3. Turn right turn signal switch ON. Right turn light is ON SOLID.
Left turn light BLINKS.
4. Place turn signal in neutral state. Right turn light is OFF.
Left turn light BLINKS.
5. Turn left turn signal switch ON. Right turn light BLINKS.
Left turn light is ON SOLID.
6. Place turn signal in neutral state. Right turn light BLINKS.
Left turn light is OFF.
7. Turn right turn signal switch ON. Right turn light is ON SOLID.
Left turn light BLINKS.
8. Place turn signal in neutral state. Right turn light is OFF.
Left turn light BLINKS.
9. Turn left turn signal switch ON. Right turn light is ON SOLID.
Left turn light is ON SOLID.
10. Turn left turn signal switch OFF. (Turn Signal Switch Must be placed in
Neutral State). Right turn light is OFF.
Left turn light is OFF.
11. Turn ignition OFF.
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167

(Continued)
(Continued)
SAFETY CHECKS YOU SHOULD MAKE
I
NSIDE THE VEHICLE
Seat Belts
Inspect the seat belt system periodically,
checking for cuts, frays, and loose parts.
Damaged parts must be replaced immediately.
Do not disassemble or modify the system.
If your vehicle is involved in a collision, or if you
have questions regarding the seat belt or
retractor conditions, take your vehicle to an
authorized FCA dealer or authorized FCA Certified
Collision Care Program facility for inspection.
Air Bag Warning Light
The Air Bag Warning Light will turn on for
four to eight seconds as a bulb check
when the ignition switch is first turned to
ON/RUN. If the light is either not on
during starting, stays on, or turns on while driving,
have the system inspected at an authorized
dealer as soon as possible. After the bulb check,
this light will illuminate with a single chime when
a fault with the Air Bag System has been
detected. It will stay on until the fault is removed.
If the light comes on intermittently or remains on
while driving, have an authorized dealer service
the vehicle immediately

Ú
page 144.
Defroster
Check operation by selecting the defrost mode
and place the blower control on high speed. You
should be able to feel the air directed against the
windshield. See an authorized dealer for service if
your defroster is inoperable.
Floor Mat Safety Information
Always use floor mats designed to fit your vehicle.
Only use a floor mat that does not interfere with
the operation of the accelerator, brake or clutch
pedals. Only use a floor mat that is securely
attached using the floor mat fasteners so it
cannot slip out of position and interfere with the
accelerator, brake or clutch pedals or impair safe
operation of your vehicle in other ways.
WARNING!
An improperly attached, damaged, folded, or
stacked floor mat, or damaged floor mat
fasteners may cause your floor mat to
interfere with the accelerator, brake, or clutch
pedals and cause a loss of vehicle control. To
prevent SERIOUS INJURY or DEATH:
 ALWAYS securely attach your floor
mat using the floor mat fasteners. DO
NOT install your floor mat upside down
or turn your floor mat over. Lightly pull
to confirm mat is secured using the floor mat
fasteners on a regular basis.
 ALWAYS REMOVE THE EXISTING
FLOOR MAT FROM THE VEHICLE
before installing any other floor mat.
NEVER install or stack an additional
floor mat on top of an existing floor mat.

ONLY install floor mats designed to fit your
vehicle. NEVER install a floor mat that cannot
be properly attached and secured to your
vehicle. If a floor mat needs to be replaced,
only use a FCA approved floor mat for the
specific make, model, and year of your vehicle.

ONLY use the driver’s side floor mat on the
driver’s side floor area. To check for
interference, with the vehicle properly
parked with the engine off, fully press the
accelerator, the brake, and the clutch pedal
(if present) to check for interference. If your
floor mat interferes with the operation of any
pedal, or is not secure to the floor, remove
the floor mat from the vehicle and place the
floor mat in your trunk.
ONLY use the passenger’s side floor mat on
the passenger’s side floor area.
ALWAYS make sure objects cannot fall or
slide into the driver’s side floor area when
the vehicle is moving. Objects can become
trapped under accelerator, brake, or clutch
pedals and could cause a loss of vehicle
control.
NEVER place any objects under the floor mat
(e.g., towels, keys, etc.). These objects could
change the position of the floor mat and may
cause interference with the accelerator,
brake, or clutch pedals.
If the vehicle carpet has been removed and
re-installed, always properly attach carpet to
the floor and check the floor mat fasteners
are secure to the vehicle carpet. Fully press
each pedal to check for interference with the
accelerator, brake, or clutch pedals then
re-install the floor mats.
WARNING!
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SAFETY

168

PERIODIC SAFETY CHECKS YOU SHOULD
M
AKE OUTSIDE THE VEHICLE
Tires
Examine tires for excessive tread wear and
uneven wear patterns. Check for stones, nails,
glass, or other objects lodged in the tread or
sidewall. Inspect the tread for cuts and cracks.
Inspect sidewalls for cuts, cracks, and bulges.
Check the wheel nuts for tightness. Check the
tires (including spare) for proper cold inflation
pressure.
Lights
Have someone observe the operation of brake
lights and exterior lights while you work the
controls. Check turn signal and high beam
indicator lights on the instrument panel.
Door Latches
Check for proper closing, latching, and locking.
Fluid Leaks
Check area under the vehicle after overnight
parking for fuel, coolant, oil, or other fluid leaks.
Also, if gasoline fumes are detected or if fuel or
brake fluid leaks are suspected the cause should
be located and corrected immediately.
EXHAUST GAS
The best protection against carbon monoxide
entry into the vehicle body is a properly
maintained engine exhaust system.
Whenever a change is noticed in the sound of the
exhaust system, when exhaust fumes can be
detected inside the vehicle, or when the
underside or rear of the vehicle is damaged, have
an authorized dealer inspect the complete
exhaust system and adjacent body areas for
broken, damaged, deteriorated, or mispositioned
parts. Open seams or loose connections could permit exhaust fumes to seep into the passenger
compartment. In addition, inspect the exhaust
system each time the vehicle is raised for
lubrication or oil change. Replace as required.
CARBON MONOXIDE WARNINGS
It is recommended to only use mild soap and
water to clean your floor mats. After cleaning,
always check your floor mat has been
properly installed and is secured to your
vehicle using the floor mat fasteners by
lightly pulling mat.
WARNING!
WARNING!
Exhaust gases can injure or kill. They contain
carbon monoxide (CO), which is colorless and
odorless. Breathing it can make you
unconscious and can eventually poison you. To
avoid breathing (CO), follow these safety tips:
Do not run the engine in a closed garage or in
confined areas any longer than needed to
move your vehicle in or out of the area.
If you are required to drive with the trunk/
liftgate/rear doors open, make sure that all
windows are closed and the climate control
BLOWER switch is set at high speed. DO NOT
use the recirculation mode.
If it is necessary to sit in a parked vehicle with
the engine running, adjust your heating or
cooling controls to force outside air into the
vehicle. Set the blower at high speed.
WARNING!
Carbon monoxide (CO) in exhaust gases is
deadly. Follow the precautions below to
prevent carbon monoxide poisoning:
Do not inhale exhaust gases. They contain
carbon monoxide, a colorless and odorless
gas, which can kill. Never run the engine in a
closed area, such as a garage, and never sit
in a parked vehicle with the engine running
for an extended period. If the vehicle is
stopped in an open area with the engine
running for more than a short period, adjust
the ventilation system to force fresh, outside
air into the vehicle.
Guard against carbon monoxide with proper
maintenance. Have the exhaust system
inspected every time the vehicle is raised.
Have any abnormal conditions repaired
promptly. Until repaired, drive with all side
windows fully open.
When exiting the vehicle, always make sure
the ignition is in the OFF position, remove the
key fob from the vehicle, and lock your
vehicle.
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182

SERVICING AND MAINTENANCE
Correct servicing permits the performance of the
vehicle to be maintained over time, as well as
limited running costs and safeguarding the
efficiency of the safety systems.
This chapter explains how.
SCHEDULED SERVICING
Correct servicing is crucial for guaranteeing a
long life for the vehicle under the best conditions.
For this reason, Alfa Romeo has planned a series
of checks and services for your vehicle at fixed
intervals based on distance and time, as
described in the Scheduled Servicing Plan.
Before each service, it is always necessary to
carefully follow the instructions in the Scheduled
Servicing Plan (e.g. periodically check level of
fluids, tire pressure, etc.).
Scheduled Servicing is offered by an authorized
dealer according to a set time schedule. If, during
each operation, in addition to the ones
scheduled, the need arises for further
replacements or repairs, these may be carried
out with the owner’s explicit consent only.

NOTE:
Scheduled Servicing intervals are required by the
manufacturer. Failure to have them carried out
may invalidate the New Vehicle Limited Warranty.
You are advised to inform an authorized dealer of
any small operating irregularities without waiting
for the next service.
PERIODIC CHECKS
Every month or every 600 miles (1,000 km) or
before long trips check and, if necessary, top off:
Engine coolant level.
Brake fluid level (if insufficient, see an
authorized dealer as soon as possible).
Windshield washer fluid level.
Tire inflation pressure and condition.
Operation of lighting system (headlights,
direction indicators, hazard warning lights,
etc.).
Operation of windshield washing/wiping
system and positioning/wear of wiper blades.
Inspect the CV/Universal joints.
Oil consumption of the engine depends on
conditions and driving style. For this reason, the
engine oil level must be checked every
1,860 miles (3,000 km), and top off if necessary

Ú
page 188.
HEAVY USAGE OF THE VEHICLE
If the vehicle is used under one of the following
conditions:
Dusty roads.
Short, repeated journeys less than 4 miles
(7 km) at sub-zero outside temperatures.
Engine often idling or driving long distances at
low speeds or long periods of inactivity.
In the event of a long period of inactivity. The following checks must be carried out more
often than indicated in the Scheduled Servicing
Plan:
Check cleanliness of hood and trunk locks,
cleanliness and lubrication of linkage.
Visually inspect conditions of: engine,
transmission, pipes and hoses (exhaust/fuel
system/brakes) and rubber elements
(sleeves/bushes, etc.).
Check battery charge and battery fluid level
(electrolyte).
Visually inspect conditions of the accessory
drive belts.
Check and, if necessary, change engine oil and
replace oil filter.
Check and, if necessary, replace cabin air
filter.
Check and, if necessary, replace engine air
cleaner.
Severe Duty All Models
Vehicles that are operated in a dusty and off-road
environment, or predominately at idle or very low
engine RPM are known as Severe Duty vehicles.
It is recommended that you change engine oil at
4,000 miles (6,500 km) or 350 hours of engine
run time.
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MAINTENANCE PLAN — 2.0L ENGINE
Thousands Of Miles102030405060708090100110120130140150
Years123456789101112131415
Thousands Of Kilometers163248648096112128144160176192208224240
SOS back up battery replacement (if equipped).1●●●
Check battery charge status with the proper instrument.
●●●●●●●●●●●●●●●
Check tire condition/wear and adjust pressure, if
necessary. Check the tire repair kit recharge condition and
expiration date.
●●●●●●●●●●●●●●●
Check operation of lighting system (headlights, direction
indicators, hazard warning lights, trunk lid, passenger
compartment, glove compartment, instrument panel
warning lights, etc.).
●●●●●●●●●●●●●●●
Check and, if necessary, top up fluid levels.
●●●●●●●●●●●●●●●
Check engine control system operation (via diagnostic tool)
and, if equipped, engine oil degradation.
2●●●●●●●●●●●●●●●
Visually inspect conditions of: exterior bodywork, underbody
protection, pipes and hoses (exhaust, fuel system, brakes),
rubber elements (sleeves, bushes, etc.).
●●●●●●●
Check position/wear of front windshield wiper blade.●●●●●●●●
Check operation of the windshield wiper/washer system
and adjust nozzles, if necessary.
●●●●●●●●
Check cleanliness of hood and luggage compartment locks,
cleanliness and lubrication of linkage.
●●●●●●●
Visually inspect conditions and wear of front/rear disc brake
pads and operation of pad wear indicators.●●●●●●●●●●●●●●●
Visually inspect the condition and tensioning of the
accessory drive belt(s).
●●●●●●●●●●●●
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185

MAINTENANCE PLAN — 2.9L ENGINE
Thousands Of Miles102030405060708090100110120130140150
Years123456789101112131415
Thousands Of Kilometers163248648096112128144160176192208224240
SOS back up battery replacement (if equipped).1●●●
Check battery charge status with the proper instrument.
●●●●●●●●●●●●●●●
Check tire condition/wear and adjust pressure, if
necessary. Check the tire repair kit recharge condition and
expiration date.
●●●●●●●●●●●●●●●
Check operation of lighting system (headlights, direction
indicators, hazard warning lights, trunk lid, passenger
compartment, glove compartment, instrument panel
warning lights, etc.).
●●●●●●●●●●●●●●●
Check and, if necessary, top up fluid levels.
●●●●●●●●●●●●●●●
Check engine control system operation (via diagnostic tool).
●●●●●●●●●●●●●●●
Visually inspect conditions of: exterior bodywork, underbody
protection, pipes and hoses (exhaust, fuel system, brakes),
rubber elements (sleeves, bushes, etc.).
●●●●●●●
Check position/wear of front windshield wiper blade.●●●●●●●●
Check operation of the windshield wiper/washer system
and adjust nozzles, if necessary.
●●●●●●●●
Check cleanliness of hood and luggage compartment locks,
cleanliness and lubrication of linkage.
●●●●●●●
Visually inspect conditions and wear of front/rear disc brake
pads and operation of pad wear indicators.●●●●●●●●●●●●●●●
Visually inspect the brake discs surface and edge.
●●●●●●●●●●●●●●●
Brake pads/brake discs replacement.
2
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ENGINE COMPARTMENT
CHECKING LEVELS — 2.0L ENGINE
1 – Engine Oil Filler Cap4 – Windshield/Headlights Washer Fluid Reservoir Cap
2 – Brake Fluid Reservoir Access Cover 5 – Intercooler Coolant Reservoir Cap
3 – Engine Coolant Reservoir Cap
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