2001 SUBARU IMPREZA oil pressure

GAS STATION REFERENCE
Fuel:Use only unlead ed g asoline with an oc tane rating of 87
AKI or hig her. This oc tane rating is the averag e of the Re-
searc h Oc tane and Motor Oc tane numb ers and is c om-
monly referred to as the Anti Knoc k Ind ex (AKI).
Refer to the Fuel Req uirement sec tion in this manua l.
Fuel capacity: 15.9 US g al (60 liters, 13.2 Imp g al)
Engine oil: Use only API c lassific ation SJ or SH with the word s
“ENERGY CONSERVING II ”
or the new API c ertific ation mark d isp layed on the c ontain-
er.
Engine oil capacity: 4.2 US q t (4.0 liters, 3.5 Imp q t)
Cold tire pressure: See the lab el loc ated und er the d river ’s d oor latc h.

3
Instruments and controls Gauges3-2
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Speedometer 3-2
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Odometer/Trip meter 3-2
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Tachometer (if equipped) 3-3
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Fuel gauge 3-3
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Temperature gauge 3-4
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Warning and indicator lights 3-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat belt warning light and chime 3-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SRS airbag system warning light 3-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charge warning light 3-6
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Oil pressure warning light 3-6
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Brake system warning light 3-6
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CHECK ENGINE warning light/Malfunction indicator lamp 3-7 . . . . . .
ABS warning light (for vehicles with ABS) 3-8 . . . . . . . . . . . . . . . . . . . . . . . . .
AT OIL TEMPerature warning light (for AT vehicles) 3-9 . . . . . . . . . . . . . .
Door open warning lights 3-10
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Front-wheel drive warning light (for AWD AT vehicles) 3-10 . . . . . . . . . .
Turn signal indicator lights 3-10
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High beam indicator 3-10
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Low fuel warning light 3-10
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Clock 3-11
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Hazard warning flasher 3-11
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Light control switch 3-12
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Turn signal lever 3-14
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Illumination brightness control 3-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking light switch 3-15
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Fog light switch (if equipped) 3-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiper and washer 3-16
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Windshield wipers and washer switches 3-18 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear window wiper and washer switch (if equipped) 3-20 . . . . . . . . . . . . .
Rear window defogger switch 3-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horn 3-22
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Mirrors 3-22
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Inside mirror 3-22
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Outside mirrors 3-23
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3-6
Contac t your nearest SUBARU d ealer immed iately.
Charge warning light
If this lig ht c omes on when the eng ine is running , it may ind ic ate that the
c harg ing system is not working p rop erly.
If the lig ht c omes on while d riving or d oes not g o out after the eng ine
starts, stop the eng ine at the first safe op p ortuni ty and c hec k the alterna-
tor b elt. If the b elt is loose, b roken or if the b e lt is in g ood c ond ition b ut
the lig ht remains on, c ontac t your nearest SUBARU d ealer immed iately.
Oil pressure warning light
CAUTION
Do not operate the engine with the oil pressure warning light on. This may cause serious engine damage.
If this lig ht c omes on when the eng ine is running , it may ind ic ate that the
eng ine oil p ressure is low and the lub ric ating syst em is not working p rop -
erly.
If the lig ht c omes on while d riving or d oes not g o out after the eng ine
starts, stop the eng ine at the first safe op p ortuni ty and c hec k the eng ine
oil level. If the oil level is low, ad d oil immed ia tely. If the eng ine oil is at
the p rop er level b ut the lig ht remains on, c ontac t your nearest SUBARU
d ealer immed iately. Brake system warning light
WARNING
Driving with the brake system warning light on is dangerous.
This indicates your brake system may not be working properly. If the light remains on, have the brakes inspected by a SUBARU
dealer immediately. If at all in doubt about whether the brakes are operating prop-
erly, do not drive the vehicle. Have your vehicle towed to the
nearest SUBARU dealer for repair.
(Canada)
BRAKE (US)

8-2
Hazard warning flasher
HS0053
Day or nig ht, if your vehic le b ec omes a traffic haz
ard , use the hazard
warning flasher. Avoid stop p ing on the road . It is b est to safely p ull off
the road if a p rob lem oc c urs. The hazard warning fl asher c an b e ac ti-
vated reg ard less of the ig nition switc h p osition.
Turn on the hazard warning b y p ushing the hazard wa rning flasher
switc h. Turn it off b y p ushing the switc h ag ain. NOTE When the hazard warning flasher is on, the turn signals do not work.
Engine overheating
WARNING
Never attempt to remove the radiator cap until the engine has been shut off and has fully cooled down. When the engine is hot,the coolant is under pressure. Removing the cap while the engineis still hot could release a spray of boiling hot coolant, which
could burn you very seriously.
If the eng ine overheats, safely p ull off the road a nd stop the vehic le in a
safe p lac e.

10
Maintenance and service
Maintenance schedule 10-3
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Maintenance precautions 10-3
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Engine compartment overview 10-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine oil 10-7
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Cooling system 10-12
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Engine coolant 10-13
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Air cleaner element 10-16
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Spark plugs 10-17
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Drive belts 10-18
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Manual transmission oil 10-19
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Automatic transmission fluid 10-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front differential gear oil (Automatic transmission vehicles) 10-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear differential gear oil 10-23
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Power steering fluid 10-25
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Brake fluid 10-26
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Clutch fluid (2.5 liter MT models) 10-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake booster 10-29
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Battery 10-29
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Windshield washer fluid 10-31
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Replacement of windshield wiper blades 10-32 . . . . . . . . . . . . . . . . . . . . . . . .
Brake pedal 10-34
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Clutch pedal (Manual transmission vehicles) 10-36 . . . . . . . . . . . . . . . . . . .
Replacement of brake pad and lining 10-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking brake stroke 10-38
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Tires and wheels 10-39
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Tire pressure 10-39
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Tire rotation 10-40
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Aluminum wheels (if equipped) 10-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuses 10-43
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Main fuse and fusible link 10-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation of accessories 10-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing bulbs 10-47
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Headlight 10-47
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10-4
Always use the proper tools and make certain that they are
well maintained. Never get under the vehicle supported only by jack. Always
use a safety stands to support the vehicle. Never keep the engine running in a poorly ventilated area,
such as a garage or other closed areas. Do not smoke or allow open flames around the fuel or battery.
This will cause a fire. Wear adequate eye protection to guard against getting oil or
other fluids in your eyes. If something does get in your eyes,
thoroughly wash it out with clean water. Because the fuel system is under pressure, replacement of the
fuel filter should be performed only by your SUBARU dealer. The SRS airbag has no user-serviceable parts. Tampering with
or disconnecting the system ’s wiring could result in accidental
inflation of the airbag or could make the system inoperative,
which may result in serious injury. The wiring harnesses of theSRS airbag system are covered with yellow insulation and the
connectors of the system are yellow, for easy identification. Donot use electrical test equipment on any circuit related to the SRSairbag system. For required servicing of the SRS airbag, see your
nearest SUBARU dealer. Before checking or servicing in the engine compart- ment
Always stop the engine and set the parking brake firmly to pre-
vent the vehicle from moving. Always let the engine cool down. Engine parts become very
hot when the engine is running and remain hot for some time af-ter the engine is stopped. Do not spill engine oil, engine coolant, brake fluid or any other
fluid on hot engine components. This may cause a fire. Always remove the key from the ignition switch. When the
ignition switch is in the “ON” position, the cooling fan may oper-
ate suddenly even when the engine is stopped.

10-12Cooling system
WARNING
Never attempt to remove the radiator cap until the engine has
been shut off and has cooled down completely. Since the coolantis under pressure, you may suffer serious burns from a spray ofboiling hot coolant when the cap is removed.
CAUTION
The cooling system has been filled at the factory with a high
quality, corrosion-inhibiting, year-around coolant which providesprotection against freezing down to –33F ( –36 C). For adding,
use genuine SUBARU coolant or an equivalent: a mixture of 50%
soft water and 50% ethylene-glycol basis coolant. Use of improp-er coolants may result in corrosion in the cooling system. It is im-portant to maintain protection against freezing and corrosion,
even if freezing temperatures are not expected. Never mix differ-ent kinds of coolant. Do not splash the engine coolant over painted parts. The alco-
hol contained in the engine coolant may damage the paint sur-face.
Hose and connections
Your vehic le emp loys an elec tric c ooling fan whic h is thermostatic ally
c ontrolled to op erate when the eng ine c oolant reac h es a sp ec ific tem-
p erature.
If the rad iator c ooling fan d oes not op erate even w hen the eng ine
c oolant temp erature g aug e exc eed s the normal op erat ing rang e, the
c ooling fan c irc uit may b e d efec tive. Chec k the fus e and rep lac e it if
nec essary. If the fuse is not b lown, have the c ooli ng system c hec ked
b y your SUBARU d ealer.
If freq uent ad d ition of c oolant is nec essary, there may b e a leak in the
eng ine c ooling system. It is rec ommend ed that the c ooling system
and c onnec tions b e c hec ked for leaks, d amag e, or lo oseness.

10-14
Changing the coolant
WARNING
Never attempt to remove the radiator cap until the engine has
been shut off and has cooled down completely. Since the coolantis under pressure, you may suffer serious burns from a spray ofboiling hot coolant when the cap is removed.
Chang e the eng ine c oolant in the following p roc ed ur es ac c ord ing to
the maintenanc e sc hed ule in the “Warranty and Maintenanc e Book-
let ”.
1. Plac e a p rop er c ontainer und er the d rain p lug and loosen the d rain
p lug .
HGA000BB
2. Loosen the rad iator c ap to d rain the c oolant from the rad iator. Then
d rain the c oolant from the reserve tank. Tig hten th e d rain p lug sec ure-
ly.