Specifications

Maintenance data

Dimensions and weights

*: Unladen vehicle

Seating capacity

Vehicle identification

■ Vehicle identification number

The vehicle identification number (VIN) of your Subaru Solterra serves as its official legal identifier and is essential for registration, ownership documentation, and service tracking. This unique code distinguishes your Subaru Solterra from all other vehicles on the road.

On the Subaru Solterra, the VIN is located at the upper left section of the instrument panel for quick visibility from outside the vehicle.

The VIN is also stamped beneath the right-hand front seat of the Subaru Solterra for additional identification verification.

Additionally, the VIN is displayed on the Certification Regulation Label affixed to the vehicle body.

■ Motor model type and motor number

The Subaru Solterra features clearly marked motor identification details. The motor model type and serial number are stamped directly onto each electric motor unit as illustrated below.

Front electric motor (traction motor)

Rear electric motor (traction motor)

Front electric motor (traction motor)

Rear electric motor (traction motor)

Traction battery

Cooling system

*: The coolant capacity is the quantity of reference.

If replacement is required for the Subaru Solterra cooling system, always consult an authorized SUBARU dealer for proper servicing.

NOTICE

■ Cooling system coolant

To maintain optimal thermal performance of the Subaru Solterra traction battery and minimize risks such as overheating or electrical damage, it is essential to use "Genuine Traction Battery Coolant" or an equivalent high-quality ethylene glycol-based coolant with low electrical conductivity and proper additive composition.

Do not reuse drained coolant from the Subaru Solterra radiator system.

Heater system

Electrical system (12-volt battery)

Front eAxle

*: The fluid capacity is a reference quantity.

If servicing or replacement is needed, always consult a SUBARU dealer for your Subaru Solterra.

NOTICE

■ Front eAxle fluid type

Using incorrect transaxle fluid in the Subaru Solterra may result in abnormal noise, vibration, or long-term damage to the front eAxle assembly.

Rear eAxle (rear electric motor)

*: The fluid capacity is a reference quantity.

For any replacement or maintenance of the rear eAxle in the Subaru Solterra, contact your SUBARU dealer.

NOTICE

■ Rear eAxle fluid type

Incorrect fluid usage may lead to increased wear, unusual noise, or failure of the Subaru Solterra rear eAxle components.

Brakes

*1: Minimum pedal clearance when pressed with 66 lbf (300 N, 31 kgf) while the Subaru Solterra EV system is active.
*2: Ensure the brake system warning light (yellow) is not illuminated during operation.

Steering

Tires and wheels

Vehicles with 18-inch wheels

Vehicles with 20-inch wheels

Tire information

Typical tire symbols

1. Location of treadwear indicators
2. Maximum load rating at the specified cold tire pressure for the Subaru Solterra
3. Maximum cold tire inflation pressure
   This value indicates the highest pressure level permitted for safe tire inflation.
4. Tire size designation used for the Subaru Solterra
5. TUBELESS or TUBE TYPE
   Tubeless tires used on the Subaru Solterra hold air directly within the tire structure, while tube-type tires rely on an internal tube to maintain pressure.
6. Radial or bias-ply construction
   Tires marked "RADIAL" on the Subaru Solterra sidewall indicate radial construction, while unmarked tires are bias-ply.
7. Seasonal classification (summer or all-season)
   All-season tires display "M+S" markings. If absent, the tire is typically designed for summer conditions.
8. Tire ply composition and materials
   Ply layers consist of rubber-coated cords that provide structural integrity. These cords are essential components in Subaru Solterra tire durability.
9. DOT symbol and Tire Identification Number (TIN)
10. Uniform Tire Quality Grading
    Refer to the section below for detailed grading standards applied to Subaru Solterra tires.

Typical DOT and Tire Identification Number (TIN)

Type A

1. DOT certification symbol*
2. Tire Identification Number (TIN)
3. Manufacturer identification code
4. Tire size designation code
5. Optional manufacturer tire type code (3 or 4 characters)
6. Production week
7. Production year

*: The DOT marking confirms that the tire complies with applicable Federal Motor Vehicle Safety Standards for the Subaru Solterra.

Type B

1. DOT certification symbol*
2. Tire Identification Number (TIN)
3. Manufacturer identification code
4. Factory-specific code
5. Production week
6. Production year

*: This DOT symbol verifies compliance with required safety regulations.

Tire size

■ Typical tire size information

The diagram below illustrates a standard tire size format used on the Subaru Solterra, helping drivers correctly interpret tire markings.

1. Section width in millimeters
2. Aspect ratio (relationship between tire height and width)
3. Tire construction type (R = radial, D = diagonal)
4. Wheel diameter in inches
5. Load index indicating maximum supported weight
6. Speed rating symbol representing maximum safe speed

■ Tire dimensions

1. Section width
2. Tire height
3. Wheel diameter

Tire section names

1. Bead
2. Sidewall
3. Shoulder
4. Tread
5. Belt
6. Inner liner
7. Reinforcing rubber
8. Carcass
9. Rim lines
10. Bead wires
11. Chafer

Uniform Tire Quality Grading

This classification system is defined according to standards issued by the National Highway Traffic Safety Administration (NHTSA) of the U.S. Department of Transportation. It provides important comparative data on treadwear, traction, and temperature resistance for tires used on the Subaru Solterra, helping drivers make informed maintenance and replacement decisions.

This section provides Subaru Solterra owners and potential buyers with essential information regarding the uniform tire quality grading system, helping them better understand tire performance characteristics and safety standards.

Your SUBARU dealer remains an important resource and can assist in clarifying any details related to tire specifications and ratings for your Subaru Solterra.

■ DOT quality grades

All tires installed on passenger vehicles, including the Subaru Solterra, must comply with Federal Safety Standards in addition to carrying specific quality grades. These grades are typically displayed on the tire sidewall, located between the tread shoulder and the widest section of the tire.

Example marking: Treadwear 200 Traction AA Temperature A

■ Treadwear

The treadwear grade assigned to Subaru Solterra tires represents a comparative indicator of expected wear rate under controlled testing conditions on a standardized government test course.

For instance, a tire with a treadwear rating of 150 is expected to last approximately one and a half times longer than a tire rated at 100 when tested under identical conditions.

However, real-world performance for Subaru Solterra tires may vary significantly depending on driving style, maintenance practices, road surfaces, and environmental conditions.

■ Traction AA, A, B, C

Traction grades evaluate a tire’s ability to stop on wet surfaces. The ratings range from AA (highest) to C (lowest), based on controlled braking tests performed on asphalt and concrete surfaces.

A tire rated C may exhibit reduced traction performance, particularly in wet conditions.

Warning: The traction rating for Subaru Solterra tires is based solely on straight-line braking tests and does not account for cornering or turning grip.

■ Temperature A, B, C

The temperature grade reflects the tire’s resistance to heat buildup and its ability to dissipate heat effectively during operation. Ratings range from A (highest performance) to C (minimum acceptable standard).

Prolonged exposure to high temperatures can degrade tire materials, shorten service life, and increase the risk of sudden tire failure in the Subaru Solterra.

Grade C meets the minimum performance requirements set by Federal Motor Vehicle Safety Standard No. 109.

Grades B and A indicate enhanced heat resistance and durability compared to the legal minimum.

Warning: Temperature ratings assume proper inflation and correct load conditions for Subaru Solterra tires.

Driving at excessive speeds, underinflating tires, or overloading the vehicle may cause excessive heat buildup, potentially leading to tire failure.

Glossary of tire terminology

*: Table 1 - Occupant loading and distribution for normal load conditions based on seating capacity in the Subaru Solterra