2020 SUBARU WRX ECU

© 2019 Subaru of America, Inc. All rights reserved.
Contents may not be reproduced in whole or in part without prior written permission of
publisher. Specifications in this Guide are based on the latest product information available
at the time of publication. Some images shown are for illustration purposes only. Some
equipment shown in photography within this Guide is optional at extra co\
st. Specific
options may be available only in combination with other options. Specifi\
c combinations
of equipment or features may vary from time to time, and by geographic area. Subaru
of America, Inc. reserves the right to change or discontinue at any time, without notice: \
Prices, colors, materials, equipment, accessories, specifications, mod\
els and packages,
without incurring any obligation to make the same or similar changes on \
vehicles
previously sold. Colors shown may vary due to reproduction and printing processes.
Subaru of America, Inc. is not responsible for typographical errors.
Aha
™ is a trademark of Harman International Industries, Inc. Alcantara® is a registered
trademark of Alcantara S.p.A., and Alcantara is produced by the Toray Group. App Store®
is a registered trademark of Apple, Inc. Apple® is a registered trademark of Apple, Inc.
BBS® is a registered trademark of BBS Kraftahrzeugtechnik, AG. Bluetooth® is a registered
trademark of Bluetooth SIG, Inc. Brembo® is a registered trademark of Freni Brembo, S.p.A.
GreenEdge® is a registered trademark of Harman International Industries, Inc. Harman
Kardon® is a registered trademark of Harman International Industries, Inc. HD Radio® is a
registered trademark of iBiquity Digital Corporation. HomeLink® is a registered trademark
of Prince Corporation, a wholly owned subsidiary of Johnson Controls. iHeart® Radio
is a registered trademark of iHeartMedia, Inc. iPod® is a registered trademark of Apple,
Inc. iTunes® is a registered trademark of Apple, Inc. Metal-Matrix Diaphragm (MMD®) is a
registered trademark of Harman International Industries, Inc. MirrorLink™ is a trademark of
Car Connectivity Consortium, LLC. Pandora® is a registered trademark of Pandora Media,
Inc. Siri® is a registered trademark of Apple, Inc. Smart Way® is a registered trademark
of the U.S. Environmental Protection Agency. Stitcher™ is a trademark of Stitcher™, Inc.
TORSEN LSD® is a registered trademark of JTEKT TORSEN North America, Inc. SiriusXM®
All Access Radio is a registered trademark of SiriusXM Radio, Inc. SiriusXM Traffic® and
SiriusXM Travel Link® are registered trademarks of SiriusXM Radio, Inc. Added Security,
Crosstrek, Forester and Outback are registered trademarks of Subaru of America, Inc. BRZ,
EyeSight, Impreza, Lineartronic, Legacy, Subaru, SUBARU BOXER, WRX, STI and X-MODE
are registered trademarks of Subaru Corporation. Confidence in Motion and SUBARU
STARLINK
™ are trademarks of Subaru Corporation.

IN CASE OF EMERGENCY
SUBARU STARLINK™ Safety and Security(subscription required)
SOS Emergency:Press the red “SOS” button on the overhead
console in the event of an emergency to speak with a SUBARU
STARLINK™ Customer Care Advisor.
Enhanced Roadside Assistance:Press the blue “i” button on the
overhead console or select the “Roadside Assistance” option in the
“MySubaru” menu on the multimedia system.
Subaru Roadside Assistance
Subaru Roadside Assistance is free and standard on your Subaru. Coverage is automatic;
there are no forms to complete. Subaru Roadside Assistance is available anytime during the
3-year/36,000-mile Subaru Limited Warranty, whichever comes first.* A Subaru Roadside
Assistance decal has been affixed to the driver’s door window. Please refer to the Roadside
Assistance guide in the owner's information kit for the details on this coverage.
Subaru Roadside Assistance:
1-800-261-2155
Roadside assistance helps with:
• Towing to the nearest authorized Subaru retailer if you cannot safely drive your Subaru
• Jump-start if your battery is dead
• Gasoline delivery if you run out of gas
• Flat tire change to install your spare
• Emergency lockout service
• National Subaru Retailer locator service, with phone numbers and location of the nearest
retailer anywhere in the U.S. or Canada
*See your Retailer for details.
TOWING YOUR ALL-WHEEL DRIVE SUBARU
Since Subaru Symmetrical All-Wheel Drive distributes power to all four wheels, improper
towing may damage your AWD system. The best way to tow your Subaru is with a flatbed
truck by your Subaru Retailer or a commercial towing service.
PURPOSE OF THIS GUIDE
3

KEYLESS ENTRY
1Lock/Arm
• Pressing this button will lock all doors, trunk and activate
the security alarm.
• If any of the doors or the trunk are not fully closed, five rapid
chirps will sound and the hazard warning flashers will flash.
• Pressing this button three times (within five seconds) will
activate the vehicle finder function. If you are within 30 feet
of your Subaru, the horn will sound once, and the hazard
warning flashers will flash three times.
2Unlock/Disarm
• Pressing this button once will unlock the driver’s door and
fuel door if set to do so in the Touchscreen.
• Pressing this button twice (within five seconds) will unlock
all doors and trunk.
• When you press this button, the interior lights will illuminate,
if set to the “DOOR” position on the overhead console
switch.
3Trunk
• Pressing and holding this button will open the trunk only.
4Panic Alarm
• Pressing this button will sound the horn and flash the
hazard warning lights.
• Press any button on the access key fob or transmitter to
deactivate.
Access Key Fob
Transmitter
ENTRY AND EXIT
4

POWER EXTERIOR MIRRORS
Turn the knob to “L” (left side) or “R” (right
side) to select a mirror. Move the knob in the
direction you want to move the mirror. Return
the knob to the neutral center position.
REAR VIEW MIRROR
Auto-dimming Mirror(if equipped)
When driving at night, the auto-dimming function
senses brightness from vehicle headlights behind you
and automatically dims to reduce glare. Pressing the
switch will turn this function on or off. A green LED
indicator on the switch will illuminate when the
function is on.
HomeLink®5 Accessory Mirror(if equipped)
The HomeLink®5 accessory mirror provides three
buttons to replace up to three hand-held radio
frequency remotes used to activate devices, such as
garage door openers, gate openers, entry door locks,
security systems and home lighting. Please see the
Owner’s Manual for programming instructions or visit
www.subaru.com/homelink to view a how-to video.
NOTE: HomeLink
®5 may not be compatible with some older door
openers or additional equipment may be required.
GETTING COMFORTABLE
10

OVERHEAD PANEL
1SOS Emergency Assistance:Press the
“SOS” button to connect with a SUBARU
STARLINK™ Customer Care Advisor
(Subscription required). Press and hold
the button for about two seconds to
cancel the call. Please refer to the
SUBARU STARLINK™ Safety and
Security Owner’s Manual or the SUBARU
STARLINK™ Quick Guide.
2Enhanced Roadside Assistance:Press
the “i” button to connect with a SUBARU
STARLINK™ Roadside Assistance
Provider (Subscription required). Press
and hold the button for about two
seconds to cancel the call. See your
STARLINK Quick Guide for more
information.
3Automatic Illumination:When the switch
is in the “DOOR” position, the map lights
illuminate when any door is opened, the
doors are unlocked using the remote
keyless entry system or keyless access
function, or the ignition is turned from
“ON” or “ACC” to “LOCK”/“OFF”.
4Lane Departure Warning OFF switch:Press and hold this switch for two seconds to
turn off the Lane Departure Warning and the Lane Sway Warning function. Press and
hold the switch again for two seconds to turn the systems back on. Please refer to
the EyeSight
®Owner’s Manual or Quick Guide.
5Pre-Collision Braking System OFF switch:Press and hold this switch for two
seconds to turn off the Pre-Collision Braking System and Pre-Collision Throttle
Management. Press and hold the switch again for two seconds to turn the systems
back on. Please refer to the EyeSight
®Owner’s Manual or Quick Guide.
6Map Lights:For WRX: press a map light to turn it on or off.
7Map Light Button:For STI: press the button to turn the light on or off.
NOTE: these lights can remain on even when the ignition is off, key removed from
vehicle and doors are locked.
WRX
WRX STI
CONTROLS
21

FOLDING THE REAR SEATS
Lower the headrests, then pull up on the
release knob on the seat side that you want to
fold down.
To return the seatback to its original position,
raise the seatback until it locks into place,
making sure that it is securely locked, you
should not be able to see the red on the
release knob.
CHILD SAFETY LOCKS
The child safety locks are located on the inside edges
of the rear doors. In the locked position, the rear doors
can only be opened from the outside.
PASSENGER/CARGO AREAS
32

2.0 L ENGINE (WRX) . . . . . .......35
2.5 L ENGINE (WRX STI) . ........36
A
ACCESSORY CONNECTIONS
Power Outlets (12V) . . . . . . . . . . . 16
ADAPTIVE CRUISE CONTROL . . . . . 18
ADDITIONAL RESOURCES . . . . . . . . 2
AUDIO CONTROLS . . . . . . . . . . . . 17
C
CHILD SAFETY LOCKS . . . . . . . . . . 32
CLIMATE CONTROL SYSTEM
Automatic Climate Control
(WRX Only) ................12
Dual-zone Automatic Climate Control
(WRX STI only) . . . . . . . . . . . . . 14
Heated Seats (if equipped) ......15
CRUISE CONTROL . . . . . . . . . . . . 17
D
DRIVING THE VEHICLE
6-Speed Manual Transmission . . . . 24
Automatic Transmission Shift Mode . 24
Driver Control Center Differential (DCCD)
(WRX STI only) . . . . . . . . . . . . . 27
Paddle Shift Control Switches
(if equipped) . . . . . . . . . . . . . . . 25
REV Alarm System (WRX STI only) . . 25
SI-Drive . . . . . . . . . . . . . . . . . . 25
E
ELECTRONIC PARKING BRAKE (EPB)
Auto Vehicle Hold (AVH) — . . . . . . 28
ENGINE OIL.................37
ENGINE OIL CAPACITY . . . . ......37
F
FOLDING THE REAR SEATS.......32
FORWARD ..................2
FUEL.....................30
FUEL CAPACITY ..............31
FUEL FILLER LID . . . . . . . . ......30
G
GAUGES..................22
I
IGNITION SWITCH . . . . . . . . . . . . . 23
IMPORTANT SAFETY INFORMATION . . . 2
IN CASE OF EMERGENCY
Subaru Roadside Assistance......3
SUBARU STARLINK™ Safety and
Security..................3
INSTRUMENT PANEL SWITCHES . . . 20
INTERNAL SAFETY TRUNK RELEASE
WITH SELF-ILLUMINATING
HANDLE . . . . . . . . . . .......33
I/SET SWITCH . . . . . . . . . ......18
K
KEYLESS ACCESS WITH PUSH BUTTON
START
Locking Using Door Handles . . . . . . 5
Opening the Trunk . . . . . . . .....5
Unlock Using Door Handles . . . . . . . 5
KEYLESS ENTRY..............4
L
LATCH/ANCHOR . . . . . . . .......33
LIGHT CONTROLS
Daytime Running Lights . . . . . . . . 18
Illumination Brightness . . .......19
INDEX
38

© 2019 Subaru of America, Inc. All rights reserved.
Contents may not be reproduced in whole or in part without prior written permission of
publisher. Specifications in this Guide are based on the latest product information available
at the time of publication. Some images shown are for illustration purposes only. Some
equipment shown in photography within this Guide is optional at extra co\
st. Specific
options may be available only in combination with other options. Specifi\
c combinations
of equipment or features may vary from time to time, and by geographic area. Subaru
of America, Inc. reserves the right to change or discontinue at any time, without notice: \
Prices, colors, materials, equipment, accessories, specifications, mod\
els and packages,
without incurring any obligation to make the same or similar changes on \
vehicles
previously sold. Colors shown may vary due to reproduction and printing processes.
Subaru of America, Inc. is not responsible for typographical errors.
Aha
™ is a trademark of Harman International Industries, Inc. Alcantara® is a registered
trademark of Alcantara S.p.A., and Alcantara is produced by the Toray Group. App Store®
is a registered trademark of Apple, Inc. Apple® is a registered trademark of Apple, Inc.
BBS® is a registered trademark of BBS Kraftahrzeugtechnik, AG. Bluetooth® is a registered
trademark of Bluetooth SIG, Inc. Brembo® is a registered trademark of Freni Brembo, S.p.A.
GreenEdge® is a registered trademark of Harman International Industries, Inc. Harman
Kardon® is a registered trademark of Harman International Industries, Inc. HD Radio® is a
registered trademark of iBiquity Digital Corporation. HomeLink® is a registered trademark
of Prince Corporation, a wholly owned subsidiary of Johnson Controls. iHeart® Radio
is a registered trademark of iHeartMedia, Inc. iPod® is a registered trademark of Apple,
Inc. iTunes® is a registered trademark of Apple, Inc. Metal-Matrix Diaphragm (MMD®) is a
registered trademark of Harman International Industries, Inc. MirrorLink™ is a trademark of
Car Connectivity Consortium, LLC. Pandora® is a registered trademark of Pandora Media,
Inc. Siri® is a registered trademark of Apple, Inc. Smart Way® is a registered trademark
of the U.S. Environmental Protection Agency. Stitcher™ is a trademark of Stitcher™, Inc.
TORSEN LSD® is a registered trademark of JTEKT TORSEN North America, Inc. SiriusXM®
All Access Radio is a registered trademark of SiriusXM Radio, Inc. SiriusXM Traffic® and
SiriusXM Travel Link® are registered trademarks of SiriusXM Radio, Inc. Added Security,
Crosstrek, Forester and Outback are registered trademarks of Subaru of America, Inc. BRZ,
EyeSight, Impreza, Lineartronic, Legacy, Subaru, SUBARU BOXER, WRX, STI and X-MODE
are registered trademarks of Subaru Corporation. Confidence in Motion and SUBARU
STARLINK
™ are trademarks of Subaru Corporation.