Subaru Impreza 2023 Replacing Key Battery Base Sedan
Fuse protection is how the 2023 Subaru Impreza guards against harm from electrical surges and malfunctions to its electrical components. Fuses are tiny, swappable parts positioned thoughtfully throughout the electrical system of the car. Every fuse is made to “blow” or break if it senses an electrical overload, protecting linked components from harm. Every fuse in the Impreza’s fuse box, which is usually found in the engine compartment and another within the car, is associated with a particular electrical circuit or part. The seamless functioning of the car’s electrical systems depends on proper maintenance and sporadic fuse inspections, underscoring Subaru’s dedication to dependability and safety.
2024 Subaru Impreza Specs, Price, Features, Mileage (Brochure)
Replacing key battery
The access key fob/transmitter battery may be discharged under the following conditions.
- The operation of the keyless access function is unstable.
- The operating distance of the remote keyless entry system is unstable.
- The transmitter does not operate properly when used within the standard distance.
Replace the battery with a new one.
Safety precautions
CAUTION
- Do not let dust, oil or water get on or in the access key fob/transmitter when replacing the battery.
- Before replacing the battery, remove any static electricity.
- Be careful not to touch or damage the printed circuit board in the access key fob/transmitter when replacing the battery.
- Be careful not to allow children to touch the battery and any removed parts; children could swallow them.
- There is a danger of an explosion if the battery is incorrectly replaced. Replace only with the same or equivalent type of battery.
- Batteries should not be exposed to excessive heat such as bright sunlight, fire, or the like.
NOTE
- Replace only with the same or equivalent type of battery recommended by the manufacturer.
- Dispose of used batteries according to local laws.
- Mount the battery in the correct orientation to prevent fluid leakage. Be careful not to bend the terminals. It may result in a malfunction.
- It is recommended that the battery be replaced by a SUBARU dealer.
- Use a new battery.
- After replacing the battery, confirm that the transmitter functions properly.
Replacing the battery of the access key fob
When removing or reinstalling the access key fob cover, make sure that the plastic part does not come off or become misaligned.
Battery: Button battery CR2032 or equivalent
- Release button
- Emergency key
- Take out the emergency key.
- Wrap a flat-head screwdriver with vinyl tape or a cloth, and insert it in the gap to remove the cover.
- Take out the battery using a flat-head screwdriver with vinyl tape or a cloth.
- Insert a new battery with its positive (+) side facing upward as shown in the figure.
- Attach the cover to the access key fob by fitting the projections and recesses together.
Replacing transmitter battery
Battery: Button battery CR1620 or equivalent
- Wrap a flat-head screwdriver with vinyl tape or a cloth. Open the key head using a flat-head screwdriver.
- Remove the transmitter case from the key head.
- Open the transmitter case by releasing the hooks.
- Negative (−) side facing up
- Negative (−) side facing up
- Replace the old battery with a new battery making sure to install the new battery with the negative (−) side facing up.
- Put together the transmitter case by fitting the hooks on the case.
- Reinstall the transmitter case in the key head.
- Refit the removed half of the key head.
Specifications
These specifications are subject to change without notice.
Dimensions
| Item | Forester | Subaru Forester Wilderness | |
| Overall length | 182.7 (4,640) | ||
| Overall width | 71.5 (1,815) | 72.2 (1,835) | |
| Overall height | 68.1 (1,730)*2
67.5 (1,715)*3 |
68.9 (1,750) | |
| Wheelbase | 105.1 (2,670) | 104.9 (2,665) | |
| Tread | Front | 61.6 (1,565) | 61.4 (1,560) |
| Rear | 61.8 (1,570) | 61.4 (1,560) | |
| Ground clearance*1 | 8.7 (220) | 9.3 (235) | |
- Measured with vehicle empty
- Models with roof rails
- Models without roof rails
Engine
| Engine model | FB25 (2.5 L, DOHC, non-turbo) |
| Engine type | Horizontally opposed, liquid cooled 4 cylinder, 4-stroke direct injection gasoline engine |
| Displacement cu-in (cc) | 152 (2,498) |
| Bore 6 Stroke in (mm) | 3.70 6 3.54 (94.0 6 90.0) |
| Compression ratio | 12.0 : 1 |
| Firing order | 1 – 3 – 2 – 4 |
Fuel
| Fuel requirement | Fuel tank capacity |
| Unleaded gasoline with 87 AKI (90 RON) or higher | 16.6 US gal (63 liters, 13.9 Imp gal) |
NOTE
The procedure for changing the engine oil and oil filter should be performed by a properly trained expert. It is recommended that you have this service performed by your SUBARU dealer.
Approved engine oil
Always use SUBARU-approved engine oil. For further details, please contact your SUBARU dealer. If the approved engine oil is unavailable, use the alternative engine oil described on the next page.
Alternative engine oil
If the SUBARU-approved oil is unavailable, the following alternative oil can be used.
NOTE
Each quantity indicated here is only a guideline. The necessary quantity for replacement may differ slightly depending on the temperature and other factors.
| Oil grade | SAE viscosity No. and applicable temperature | Engine oil capacity |
| or
API (American Petroleum Insti ILSAC (International Lubricanttute) classification SN with the Specification Advisory Commit- words “RESOURCE CONSER tee) GF-5 or GF-6A, which can VING”, SN PLUS with the words be identified with the ILSAC “RESOURCE CONSERVING” or certification mark (Starburst SP with the words “RESOURCE mark) CONSERVING” |
0W-20 synthetic oil is the required oil for optimum engine performance and protection. Conventional oil may be used if synthetic oil is unavailable.
*: If 0W-20 synthetic oil is not available, 5W-30 conventional oil may be used if replenishment is needed but should be changed to 0W-20 synthetic oil at the next oil change.
|
– Adding the oil from low level to full level:
1.1 US q t (1.0 liters, 0.9 Imp q t) – Changing the oil and oil filter: 4.4 US q t (4.2 liters, 3.7 Imp q t) |
Front differential and rear differential gear oil
| Oil | Front differential gear oil | Rear differential gear oil |
| Oil grade | ● SUBARU Extra MT*3
● API classification GL-5 (75W-90) |
API classification GL-5 (75W-90) |
| Oil capacity*1 | 1.4 US q t (1.3 liters, 1.1 Imp q t) | 0.8 US q t (0.8 liters, 0.7 Imp q t) |
The indicated oil quantity is only a guideline. The necessary quantity for replacement may differ slightly depending on the temperature and other factors. After refilling the gearbox with oil, the oil level should be checked.
- For more details about maintenance and service, refer to the indicated section.
- The vehicle is filled at the factory with this oil.
Fluids
| Fluid | Fluid type*1 | Fluid capacity*2 | Remarks*3 |
|
Continuously variable transmission fluid |
Consult your SUBARU dealer. |
Except for Subaru Forester Wilderness models: 12.7 US q b t (12.0 liters, 10.6 Imp q b)
For Subaru Forester Wilderness models: 12.4 US q t (11.7 liters, 10.3 Imp q t) |
|
| Brake fluid | FMVSS No. 116, DOT 3
or DOT 4 brake fluid |
- Use one of the indicated types of fluid.
- The indicated fluid quantity is only a guideline. The necessary quantity for replacement may differ slightly depending on the temperature and other factors.
- For more details about maintenance and service, refer to the indicated section.
Engine coolant
| Coolant capacity | Coolant type |
| 9.0 US q t (8.5 liters, 7.5 Imp q t) | SUBARU SUPER COOLANT |
The indicated coolant quantity is only a guideline. The necessary quantity for replacement may differ slightly depending on the temperature and other factors.
Electrical system
| Battery type | Q-85 |
| Alternator | 12 V-150 A |
| Spark plugs | DILKAR7Q8 (NGK) |
Tires
| Item | Forester | Subaru Forester Wilderness | ||
| Tire size | 225/60R17 99H | 225/55R18 98H | 225/60R17 99T | |
| Wheel size | 17 6 7 J | 18 6 7 J | 17 6 7 J | |
| Pressure | Front | 36 psi (250 kPa, 2.5 k gf/cm2) | 35 psi (240 kPa, 2.4 kg f/cm2) | 33 psi (230 kPa, 2.3 k gf/cm2) |
| Rear | 35 psi (240 kPa, 2.4 k gf/cm2) | 33 psi (230 kPa, 2.3 /cm2) | 32 psi (220 kPa, 2.2 k gf/cm2) | |
| Wheel nut tightening torque | 89 l b f ·f t (120 N m, 12 k gf· m)*1 | |||
This torque is equivalent to applying approximately 88 to 110 l b f (40 to 50 k gf) at the end of the wheel nut wrench. If you have tightened the wheel nuts by yourself, have the tightening torque checked at the nearest automotive service facility as soon as possible.
Temporary spare tires
| Temporary spare tire size | T145/80 D17 |
| Temporary spare tire inflation pressure (recommended cold tire inflation pressure) | 60 psi (420 kPa, 4.2 kgf/cm2) |
Brake disc
If you need information on the usage limit value of brake discs and the method for measuring them, we recommend that you consult your SUBARU dealer.
Bulb chart
Bulbs may become very hot while illuminated. Before replacing the bulbs, turn off the lights and wait until the bulbs cool down. Otherwise, there is a risk of sustaining a burn injury.
CAUTION
Replace any bulb only with a new bulb of the specified wattage. Using a bulb of different wattage could result in a fire.
Bulb chart
NOTE
Lights indicated by letters are the LED (Light Emitting Diode) type. Consult your SUBARU dealer for replacement.
Wattage Bulb No.
- High beam headlight (models with halogen headlight) 12 V-60 W HB3
- Front turn signal light (models with LED headlight) 12 V-28 W 7444NA
- Vanity mirror light (if equipped) 12 V-2 W —
- Low beam headlight (models with halogen headlight) 12 V-55 W H11
- Map light 12 V-8 W —
- Dome light 12 V-8 W —
- Front side marker light (models with halogen headlight) 12 V-5 W W5W
- Parking light/Front turn signal light (models with halogen headlight) 12 V-8/28 W 7444NA
- Front fog light (if equipped) 12 V-19 W H16
- Trunk light (sedan) 12 V-3.8 W SAE#194
- Rear side marker light (5-door models) 12 V-5 W W5W
- Tail light (5-door models) 12 V-5 W W5W
- Tail and rear side marker light (sedan) 12 V-5 W W5W
- Rear turn signal light 12 V-21 W WY21W
- Backup light 12 V-21 W W21W
- License plate light 12 V-5 W W5W
- Cargo area light (5-door models) 12 V-5 W W5W
Wattage Bulb No.
- Low and high beam headlight (models with LED headlight) — —
- Side turn signal light (if equipped) — —
- Front side marker light (models with LED headlight) — —
- Parking light/Daytime running light (models with LED headlight) — —
- Daytime running light (if equipped, models with halogen headlight)/Front fog light (if equipped) — —
- High-mounted stop light (sedan) — —
- Stoplight — —
- High-mounted stop light (5-door models) — —
Vehicle identification
- Vehicle identification number (under the floor carpet of the right-hand front seat)
- Emission control label
- Tire inflation pressure label (vehicle placard)
- Certification label
- Vehicle identification number
- Model number label
- Fuel label
- Air conditioner label
FAQ
Why might I need to replace the battery in my 2023 Subaru Impreza Sedan?
Batteries typically need replacement when they no longer hold a charge, show signs of deterioration, or fail to start the vehicle reliably.
What safety precautions should I take before replacing the battery?
Ensure the vehicle is in a safe and well-ventilated area, turn off the ignition, and disconnect the negative terminal first to avoid electrical shock.
How can I identify the correct battery specifications for my Impreza Sedan?
Refer to the owner’s manual or check the existing battery for information on the correct battery type, size, and specifications.
What tools do I need to replace the battery in the Impreza?
You’ll need a wrench or socket set, battery terminal cleaner, a wire brush, and a replacement battery that meets the required specifications.
What is the purpose of disconnecting the negative terminal first?
Disconnecting the negative terminal first reduces the risk of accidental short circuits while working on the positive terminal.
Can I use any battery that fits in the Impreza, or does it need to meet specific specifications?
It’s crucial to use a battery that meets or exceeds the specifications recommended for your Impreza to ensure proper vehicle operation.
How do I properly dispose of the old battery?
You can dispose of the old battery at a recycling center or return it to an auto parts store that offers battery recycling services.
What should I do if I’m unsure about resetting vehicle settings after battery replacement?
Consult the owner’s manual for guidance on resetting settings like the clock, radio presets, and power windows after battery replacement.
Are there any potential risks associated with replacing the battery myself?
While replacing a battery is a relatively straightforward task, there are electrical and safety risks. If unsure, it’s safer to have a professional mechanic perform the replacement.
What are the consequences of using a battery that doesn’t meet the Impreza’s specifications?
Using an incorrect battery can lead to electrical system issues, poor performance, and potential damage to the vehicle’s electronics.
How long should the new battery last in the 2023 Impreza Sedan?
The lifespan of a new battery can vary, but on average, a high-quality battery should last about 3 to 5 years.
Can I use a maintenance-free (sealed) battery in the Impreza?
Yes, maintenance-free (sealed) batteries are suitable for the Impreza and offer the convenience of not needing periodic water addition.
Should I have the charging system checked when replacing the battery?
It’s a good practice to have the charging system checked by a professional if you’ve experienced battery issues to ensure there are no underlying problems.
Are there any specific Subaru-branded batteries recommended for the 2023 Impreza Sedan?
Subaru may provide recommendations for batteries through authorized dealerships, but compatible aftermarket batteries are also available.
Can I replace the battery in cold weather conditions?
Yes, you can replace the battery in cold weather, but it’s advisable to do so in a sheltered area to minimize exposure to extreme cold.
Useful Link
View Full User Guide: Subaru Impreza 2023 Base Sedan User Guide
Download Manuals: https://www.subaru.com/owners/vehicle-resources/manuals.html
2024 Subaru Impreza Specs, Price, Features, Mileage (Brochure)