check engine BUICK ENCORE GX 2022 User Guide

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15481080) - 2022 - CRC - 6/1/21
214 Driving and Operating
apply the brake pedal as the driving
situation dictates. Brake Assist disengages
when the brake pedal is released.
Hill Start Assist (HSA)
{Warning
Do not rely on the HSA feature. HSA does
not replace the need to pay attention
and drive safely. You may not hear or
feel alerts or warnings provided by this
system. Failure to use proper care when
driving may result in injury, death,
or vehicle damage. SeeDefensive Driving
0 191.
When the vehicle is stopped on a grade, Hill
Start Assist (HSA) prevents the vehicle from
rolling in an unintended direction during the
transition from brake pedal release to
accelerator pedal apply. The brakes release
when the accelerator pedal is applied. HSA
brake hold duration may be selectable.
Standard Hold automatically releases the
brakes after a few seconds. Extended Hold
applies the Electric Parking Brake if the
accelerator pedal is not applied within a few
minutes. If hold duration is selectable, see "Extended Hill Start Assist" in
Vehicle
Personalization 0116. The brakes may also
release under other conditions. Do not rely
on HSA to hold the vehicle.
HSA is available when the vehicle is facing
uphill in a forward gear, or when facing
downhill in R (Reverse). The vehicle must
come to a complete stop on a grade for HSA
to activate.
Ride Control Systems
Traction Control/Electronic
Stability Control
System Operation
The vehicle has a Traction Control System
(TCS) and StabiliTrak/Electronic Stability
Control (ESC), an electronic stability control
system. These systems help limit wheel slip
and assist the driver in maintaining control,
especially on slippery road conditions.
TCS activates if it senses that any of the
drive wheels are spinning or beginning to
lose traction. When this happens, TCS
applies the brakes to the spinning wheels
and reduces engine power to limit
wheel spin. StabiliTrak/ESC activates when the vehicle
senses a difference between the intended
path and the direction the vehicle is actually
traveling. StabiliTrak/ESC selectively applies
braking pressure to any one of the vehicle
wheel brakes to assist the driver in keeping
the vehicle on the intended path.
If cruise control is being used and TCS or
StabiliTrak/ESC begins to limit wheel spin,
cruise control will disengage. Cruise control
may be turned back on when road
conditions allow.
Both systems come on automatically when
the vehicle is started and begins to move.
The systems may be heard or felt while
they are operating or while performing
diagnostic checks. This is normal and does
not mean there is a problem with the
vehicle.
It is recommended to leave both systems on
for normal driving conditions, but it may be
necessary to turn TCS off if the vehicle gets
stuck in sand, mud, ice, or snow. See
If the
Vehicle Is Stuck 0196 and “Turning the
Systems Off and On” later in this section.

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Driving and Operating 247
If equipped, the following driver assistance
features should be turned to alert or off
when towing a trailer:
.Automatic Emergency Braking (AEB)
.Intelligent Brake Assist (IBA)
.Front Pedestrian Braking (FPB)
If equipped with Lane Change Alert (LCA),
the LCA detection zones that extend back
from the side of the vehicle do not move
further back when a trailer is towed. Use
caution while changing lanes when towing a
trailer.
If equipped with Rear Cross Traffic Alert
(RCTA), use caution while backing up when
towing a trailer, as the RCTA detection zones
that extend out from the back of the vehicle
do not move further back when a trailer is
towed.
{Warning
To prevent serious injury or death from
carbon monoxide (CO), when towing a
trailer:
.Do not drive with the liftgate, trunk/
hatch, or rear-most window open. (Continued)
Warning (Continued)
.Fully open the air outlets on or under
the instrument panel.
.Adjust the climate control system to a
setting that brings in only outside air.
See“Climate Control Systems” in the
Index.
For more information about carbon
monoxide, see Engine Exhaust 0208.
Towing a trailer requires experience. The
combination of the vehicle and trailer is
longer and not as responsive as the vehicle
itself. Get used to the handling and braking
of the combination by driving on a level
road surface before driving on public roads.
The trailer structure, the tires, and the
brakes must be all be rated to carry the
intended cargo. Inadequate trailer
equipment can cause the combination to
operate in an unexpected or unsafe manner.
Before driving, inspect all trailer hitch parts
and attachments, safety chains, electrical
connectors, lamps, tires, and mirrors. See
Towing Equipment 0252. If the trailer has
electric brakes, start the combination
moving and then manually apply the trailer
brake controller to check the trailer brakes work. During the trip, occasionally check
that the cargo and trailer are secure and
that the lamps and any trailer brakes are
working.Towing with a Stability Control System
When towing, the stability control system
might be heard. The system reacts to
vehicle movement caused by the trailer,
which mainly occurs during cornering. This is
normal when towing heavier trailers.
Following Distance
Stay at least twice as far behind the vehicle
ahead as you would when driving without a
trailer. This can help to avoid heavy braking
and sudden turns.
Passing
More passing distance is needed when
towing a trailer. The combination will not
accelerate as quickly and is much longer so
it is necessary to go much farther beyond
the passed vehicle before returning to the
lane. Pass on level roadways. Avoid passing
on hills if possible.

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 249
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear ofthe chocks.
4. Stop and have someone pick up and store the chocks.
Maintenance When Trailer Towing
The vehicle needs service more often when
used to tow trailers. See Maintenance
Schedule 0329. It is especially important to
check the automatic transmission fluid,
engine oil, axle lubricant, belts, cooling
system, and brake system before and during
each trip.
Check periodically that all nuts and bolts on
the trailer hitch are tight.
Engine Cooling When Trailer Towing
The cooling system may temporarily
overheat during severe operating conditions.
See Engine Overheating 0270.
Trailer Towing
Caution
Towing a trailer improperly can damage
the vehicle and result in costly repairs
not covered by the vehicle warranty. To
(Continued)
Caution (Continued)
tow a trailer correctly, follow the
directions in this section and see your
dealer for important information about
towing a trailer with the vehicle.
Trailer Weight
{Warning
Never exceed the towing capacity for
your vehicle.
Safe trailering requires monitoring the
weight, speed, altitude, road grades, outside
temperature, dimensions of the front of the
trailer, and how frequently the vehicle is
used to tow a trailer.
Trailer Weight Ratings
When towing a trailer, the weight of the
loaded vehicle and trailer must be within
the weight ratings for the vehicle.
.GCWR: Gross Combined Weight Rating
.GVWR: Gross Vehicle Weight Rating
.Maximum Trailer Weight Rating
.Maximum Trailer Tongue Weight See
“Weight-Distributing Hitch Adjustment”
under Towing Equipment 0252 to determine
if equalizer bars are required to obtain the
maximum trailer weight rating.
See “Trailer Brakes” underTowing
Equipment 0252 to determine if brakes are
required based on your trailer's weight.
The only way to be sure the weight is not
exceeding any of these ratings is to weigh
the tow vehicle and trailer combination,
fully loaded for the trip, getting individual
weights for each of these items.
{Warning
You and others could be seriously injured
or killed if the trailer is too heavy or the
trailer brakes are inadequate for the load.
The vehicle may be damaged, and the
repairs would not be covered by the
vehicle warranty.
Only tow a trailer if all the steps in this
section have been followed. Ask your
dealer for advice and information about
towing a trailer.

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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254 Driving and Operating
Conversions and Add-Ons
Add-On Electrical Equipment
{Warning
The Data Link Connector (DLC) is used
for vehicle service and Emission
Inspection/Maintenance testing. See
Malfunction Indicator Lamp (Check Engine
Light)0100. A device connected to the
DLC —such as an aftermarket fleet or
driver-behavior tracking device —may
interfere with vehicle systems. This could
affect vehicle operation and cause a
crash. Such devices may also access
information stored in the vehicle’s
systems.
Caution
Some electrical equipment can damage
the vehicle or cause components to not
work and would not be covered by the
vehicle warranty. Always check with your
dealer before adding electrical equipment. Add-on equipment can drain the vehicle's
12-volt battery, even if the vehicle is not
operating.
The vehicle has an airbag system. Before
attempting to add anything electrical to the
vehicle, see
Servicing the Airbag-Equipped
Vehicle 060 and
Adding Equipment to the Airbag-Equipped
Vehicle 061.

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Vehicle Care 255
Vehicle Care
General Information
General Information . . . . . . . . . . . . . . . . . . . 256
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 256
Accessories and Modifications . . . . . . . . . 256
Vehicle Checks
Doing Your Own Service Work . . . . . . . . . 257
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Engine Compartment Overview . . . . . . . . 259
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Engine Oil Life System . . . . . . . . . . . . . . . . 264
Automatic Transmission Fluid . . . . . . . . . 265
Engine Air Filter Life System . . . . . . . . . . 265
Engine Air Cleaner/Filter . . . . . . . . . . . . . . 265
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 267
Engine Overheating . . . . . . . . . . . . . . . . . . . 270
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Brake Pad Life System . . . . . . . . . . . . . . . . . 273
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Battery - North America . . . . . . . . . . . . . . . 274
All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . . 276
Automatic Transmission Shift Lock Control Function Check . . . . . . . . . . . . . . 276
Park Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
Wiper Blade Replacement . . . . . . . . . . . . . 277 Windshield Replacement . . . . . . . . . . . . . . 278
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . 279
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . 279
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . 279
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Headlamps and Sidemarker Lamps . . . . 279
Front Turn Signal and Fog Lamps . . . . . . 281
Taillamps, Turn Signal, Sidemarker,
Stoplamps, and Back-Up Lamps (Base
Level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Taillamps, Turn Signal, Sidemarker, Stoplamps, and Back-Up Lamps
(Uplevel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Electrical System
Electrical System Overload . . . . . . . . . . . . 285
Fuses and Circuit Breakers . . . . . . . . . . . . . 286
Engine Compartment Fuse Block . . . . . . 287
Instrument Panel Fuse Block . . . . . . . . . . 289
Rear Compartment Fuse Block . . . . . . . . . 291
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . 292
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . 293
Tire Designations . . . . . . . . . . . . . . . . . . . . . . 295 Tire Terminology and Definitions . . . . . . 295
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Tire Pressure Monitor System . . . . . . . . . 298
Tire Pressure Monitor Operation . . . . . . 299
Tire Inspection . . . . . . . . . . . . . . . . . . . . . . . . 302
Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 303
When It Is Time for New Tires . . . . . . . . 304
Buying New Tires . . . . . . . . . . . . . . . . . . . . . 304
Different Size Tires and Wheels . . . . . . . 305
Uniform Tire Quality Grading . . . . . . . . . 306
Wheel Alignment and Tire Balance . . . . 307
Wheel Replacement . . . . . . . . . . . . . . . . . . . 307
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 308
Tire Changing . . . . . . . . . . . . . . . . . . . . . . . . . 309
Compact Spare Tire . . . . . . . . . . . . . . . . . . . . 313
Jump Starting
Jump Starting - North America . . . . . . . . 314
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . . . . . . 316
Recreational Vehicle Towing . . . . . . . . . . . 317
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 257
Vehicle Checks
Doing Your Own Service Work
{Warning
It can be dangerous to work on your
vehicle if you do not have the proper
knowledge, service manual, tools,
or parts. Always follow owner’s manual
procedures and consult the service
manual for your vehicle before doing any
service work.
If doing some of your own service work, use
the proper service manual. It tells you much
more about how to service the vehicle than
this manual can. To order the proper service
manual, see Publication Ordering
Information 0352.
This vehicle has an airbag system. Before
attempting to do your own service work,
see Servicing the Airbag-Equipped Vehicle
0 60. If equipped with remote vehicle start, open
the hood before performing any service
work to prevent remote starting the vehicle
accidentally. See
Remote Vehicle Start 013.
Keep a record with all parts receipts and list
the mileage and the date of any service
work performed. See Maintenance Records
0 340.
Caution
Even small amounts of contamination can
cause damage to vehicle systems. Do not
allow contaminants to contact the fluids,
reservoir caps, or dipsticks.
Hood
{Warning
For vehicles with auto engine stop/start,
turn the vehicle off before opening the
hood. If the vehicle is on, the engine will
start when the hood is opened. You or
others could be injured.
{Warning
Components under the hood can get hot
from running the engine. To help avoid
the risk of burning unprotected skin,
never touch these components until they
have cooled, and always use a glove or
towel to avoid direct skin contact.
Clear any snow from the hood before
opening.
To open the hood:
1. Pull the hood release handle inside the vehicle. It is located on the lower left
side of the instrument panel.

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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262 Vehicle Care
1. Windshield Washer Fluid Reservoir. SeeWasher Fluid 0271.
2. Engine Coolant Surge Tank and Pressure Cap. See Cooling System 0267.
3. Engine Oil Fill Cap. See Engine Oil0262.
4. Engine Oil Dipstick. See Engine Oil0262.
5. Engine Cooling Fan (Out of View). See Cooling System 0267.
6. Engine Air Cleaner/Filter 0265.
7. Brake Fluid Reservoir. See Brakes0272.
8. Positive (+) Battery Terminal. See Jump
Starting - North America 0314.
9. Battery - North America 0274.
10. Engine Compartment Fuse Block 0287.
11. Remote Negative (-) Battery Terminal. SeeJump Starting - North America 0314
Engine Oil
To ensure proper engine performance and
long life, careful attention must be paid to
engine oil. Following these simple, but
important steps will help protect your
investment:
.Use engine oil approved to the proper
specification and of the proper viscosity
grade. See “Selecting the Right Engine
Oil” in this section.
.Check the engine oil level regularly and
maintain the proper oil level. See
“Checking Engine Oil” and“When to Add
Engine Oil” in this section.
.Change the engine oil at the appropriate
time. SeeEngine Oil Life System 0264.
.Always dispose of engine oil properly. See
“What to Do with Used Oil” in this
section.
Checking Engine Oil
Check the engine oil level regularly, every
650 km (400 mi), especially prior to a long
trip. The engine oil dipstick handle is a loop.
See Engine Compartment Overview 0259 for
the location.
{Warning
The engine oil dipstick handle may be
hot; it could burn you. Use a towel or
glove to touch the dipstick handle.
If a low oil Driver Information Center (DIC)
message displays, check the oil level.
Follow these guidelines:
.To get an accurate reading, park the
vehicle on level ground. Check the engine
oil level after the engine has been off for
at least two hours. Checking the engine oil level on steep grades or too soon after
engine shutoff can result in incorrect
readings. Accuracy improves when
checking a cold engine prior to starting.
Remove the dipstick and check the level.
.If unable to wait two hours, the engine
must be off for at least 15 minutes if the
engine is warm, or at least 30 minutes if
the engine is not warm. Pull out the
dipstick, wipe it with a clean paper towel
or cloth, then push it back in all the way.
Remove it again, keeping the tip down,
and check the level.
When to Add Engine Oil
LIH 1.2L (Version 1) and L3T 1.3L L3 Engines

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Vehicle Care 263
LIH 1.2L (Version 2) L3 Engine
If the oil is below the cross-hatched area at
the tip of the dipstick and the engine has
been off for at least 15 minutes, add 1 L
(1 qt) of the recommended oil and then
recheck the level. See “Selecting the Right
Engine Oil” later in this section for an
explanation of what kind of oil to use. For
engine oil crankcase capacity, see Capacities
and Specifications 0342.
Caution
Do not add too much oil. Oil levels above
or below the acceptable operating range
shown on the dipstick are harmful to the
engine. If you find that you have an oil
level above the operating range, i.e., the
engine has so much oil that the oil level
gets above the MAX mark, the engine
could be damaged. You should drain out
(Continued)
Caution (Continued)
the excess oil or limit driving of the
vehicle and seek a service professional to
remove the excess amount of oil.
See Engine Compartment Overview 0259 for
the location of the engine oil fill cap.
Add enough oil to put the level somewhere
in the proper operating range between the
MIN and MAX marks. Push the dipstick all
the way back in when through.
Selecting the Right Engine Oil
Selecting the right engine oil depends on
both the proper oil specification and
viscosity grade. See Recommended Fluids
and Lubricants 0337.
Specification
Use full synthetic engine oils that meet the
dexos1 specification.
Engine oils that have been approved by GM
as meeting the dexos1 specification are
marked with the dexos1 approved logo. See
www.gmdexos.com.
Caution
Failure to use the recommended engine
oil or equivalent can result in engine
damage not covered by the vehicle
warranty.
Viscosity Grade
Use SAE 0W-20 viscosity grade engine oil for
1.3L L3 engine.
Use SAE 5W-30 viscosity grade engine oil for
1.2L L3 engine. Cold Temperature Operation:
In an area of extreme cold, where the
temperature falls below −29 °C (−20 °F), an
SAE 0W-30 oil may be used for the 1.2L L3
engine. An oil of this viscosity grade will
provide easier cold starting for the engine at
extremely low temperatures.
When selecting an oil of the appropriate
viscosity grade, it is recommended to select
an oil of the correct specification. See
“Specification” earlier in this section.

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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264 Vehicle Care
Engine Oil Additives/Engine Oil Flushes
Do not add anything to the oil. The
recommended oils meeting the dexos1
specification are all that is needed for good
performance and engine protection.
Engine oil system flushes are not
recommended and could cause engine
damage not covered by the vehicle
warranty.
What to Do with Used Oil
Used engine oil contains certain elements
that can be unhealthy for your skin and
could even cause cancer. Do not let used oil
stay on your skin for very long. Clean your
skin and nails with soap and water, or a
good hand cleaner. Wash or properly
dispose of clothing or rags containing used
engine oil. See the manufacturer's warnings
about the use and disposal of oil products.
Used oil can be a threat to the environment.
If you change your own oil, be sure to drain
all the oil from the filter before disposal.
Never dispose of oil by putting it in the
trash or pouring it on the ground, into
sewers, or into streams or bodies of water.
Recycle it by taking it to a place that
collects used oil.
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer system that
indicates when to change the engine oil and
filter. This is based on a combination of
factors which include engine revolutions,
engine temperature, and miles driven. Based
on driving conditions, the mileage at which
an oil change is indicated can vary
considerably. For the oil life system to work
properly, the system must be reset every
time the oil is changed.
When the system has calculated that oil life
has been diminished, it indicates that an oil
change is necessary. A CHANGE ENGINE OIL
SOON message comes on. Change the oil as
soon as possible within the next 1 000 km
(600 mi). It is possible that, if driving under
the best conditions, the oil life system
might indicate that an oil change is not
necessary for up to a year. The engine oil
and filter must be changed at least once a
year and, at this time, the system must be
reset. Your dealer has trained service people
who will perform this work and reset the
system. It is also important to check the oil
regularly over the course of an oil drain
interval and keep it at the proper level.If the system is ever reset accidentally, the
oil must be changed at 5 000 km (3,000 mi)
since the last oil change. Remember to reset
the oil life system whenever the oil is
changed.
How to Reset the Engine Oil Life System
Reset the system whenever the engine oil is
changed so that the system can calculate
the next engine oil change. To reset the
system:
1. Display the REMAINING OIL LIFE on the DIC. See Driver Information Center (DIC)
(Base Level) 0107 or
Driver Information Center (DIC) (Uplevel)
0 109. This display shows an estimate of
the oil’s remaining useful life. If 10% is
displayed, that means that 10% of the
current oil life remains.
2. Press and hold
lor the thumbwheel
while the Oil Life display is active. The
oil life will change to 100%.
If the CHANGE ENGINE OIL SOON message
comes back on when the vehicle is started,
the engine oil life system has not been
reset. Repeat the procedure.

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Vehicle Care 265
Automatic Transmission Fluid
How to Check Automatic Transmission
Fluid
It is not necessary to check the transmission
fluid level. A transmission fluid leak is the
only reason for fluid loss. If a leak occurs,
take the vehicle to your dealer and have it
repaired as soon as possible.
There is a special procedure for checking and
changing the transmission fluid. Because this
procedure is difficult, you should have this
done at your dealer.
Change the fluid at the intervals listed in
Maintenance Schedule0329, and be sure to
use the fluid listed in Recommended Fluids
and Lubricants 0337.
Engine Air Filter Life System
If equipped, this feature provides the engine
air filter’s remaining life and best timing for
a change. The timing to change an engine
air filter depends on driving and
environmental conditions.
When to Change the Engine Air Filter
When the Driver Information Center (DIC)
displays a message to replace the engine air
filter at the next oil change, follow this
timing.
When the DIC displays a message to replace
the engine air filter soon, replace the engine
air filter at the earliest convenience.
The system must be reset after the engine
air filter is changed.
If the DIC displays a message to check the
engine air filter system, see your dealer.
How to Reset the Engine Air Filter Life
System
To reset:
1. Place the vehicle in P (Park).
2. Select Engine Air Filter Life on the DIC menu. See Driver Information Center
(DIC) (Base Level) 0107 or
Driver Information Center (DIC) (Uplevel)
0 109.
3. Press
lor the thumbwheel to move to
the Reset/Disable display area. Select
Reset then press
lor press the
thumbwheel. Then press Yes to confirm
the reset. 4. 100% AIR FILTER LIFE will be displayed
when the Engine Air Filter Life System is
successfully reset.
Engine Air Cleaner/Filter
The engine air cleaner/filter is in the engine
compartment on the passenger side of the
vehicle. See Engine Compartment Overview
0 259.
When to Inspect the Engine Air Cleaner/
Filter
If the vehicle is not equipped with the
engine air filter life system, see
Maintenance Schedule 0329 for intervals on
inspecting and replacing the engine air
cleaner/filter.
How to Inspect the Engine Air Cleaner/
Filter
Do not start the engine or have the engine
running with the engine air cleaner/filter
housing open. Before removing the engine
air cleaner/filter, make sure that the engine
air cleaner/filter housing and nearby
components are free of dirt and debris. Do
not clean the engine air cleaner/filter with
water or compressed air.