2024 Subaru Crosstrek Battery: BCI Group Size & CCA
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Quick Answer
- BCI Group Size: 35
- CCA Rating: 550-640 CCA (standard for OEM, replacements may vary)
- Reserve Capacity: 100-120 minutes (standard for OEM, replacements may vary)
- AGM vs. Flooded: Flooded lead-acid is standard, but AGM is an excellent upgrade.
- Terminal Layout: Top post, typically positive on the right.
- Physical Dimensions: (Standard Group 35) Approximately 9.06" L x 6.89" W x 8.86" H.
- Dual-Battery Setup: Not applicable for this gasoline vehicle.
Replacement Battery Options
When it's time to replace the battery in your 2024 Subaru Crosstrek, several reputable brands offer compatible options. Always double-check fitment and specifications for your particular trim level.
- Interstate: MTZ-35 (AGM), MTP-35 (Flooded)
- Optima: 8020-164 (RedTop, Group 35)
- DieHard: Platinum AGM Group 35, Gold Group 35
- Odyssey: 35-PC1400 (AGM)
- ACDelco: 35AGM (AGM), 35S (Flooded)
AGM vs. Flooded — Which Does This Vehicle Need?
The 2024 Subaru Crosstrek comes equipped from the factory with a standard flooded lead-acid battery. While this type of battery is perfectly adequate and cost-effective, an Absorbent Glass Mat (AGM) battery is often a superior upgrade, especially given the increasing electrical demands of modern vehicles and the presence of start-stop systems in some Crosstrek models.
Flooded Lead-Acid Batteries:
- Pros: Generally less expensive, widely available.
- Cons: Require occasional maintenance (checking water levels, though many are "maintenance-free"), can be more susceptible to vibration damage, and perform less efficiently in extreme temperatures.
AGM Batteries:
- Pros: Maintenance-free (sealed design), more resistant to vibration, better performance in extreme hot and cold, longer lifespan, faster recharging, and better suited for vehicles with start-stop technology or numerous electronic accessories.
- Cons: Higher initial cost.
For the 2024 Crosstrek, while not strictly "needed," an AGM battery offers enhanced reliability and longevity, making it a worthwhile investment for many owners.
Post-Installation Relearn / Reset Procedure
After replacing the battery in your 2024 Subaru Crosstrek, it's important to be aware that certain systems may require a relearn or reset. While the process is generally straightforward, here
More specs for the 2024 Subaru Crosstrek
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Fuse Box Diagram & Amperage
Fuse box locations, layout, amps, and what each fuse controls.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2024 Subaru Crosstrek Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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Values can vary by engine, trim and build date; check your VIN-specific service information. Updated 2026-06-26.