2025 GMC Yukon Battery Size & Group
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Quick answer
- BCI Group Size: H7/94R
- CCA Rating: 800 CCA (minimum)
- Reserve Capacity: 140-160 minutes
- AGM vs Flooded: AGM (required for vehicles with start/stop technology, prevalent in modern Yukons)
- Terminal Layout: Top Post
- Physical Dimensions: (L) 12.4 inches x (W) 6.9 inches x (H) 7.5 inches (approximate for H7/94R group)
- Dual-Battery Setup: Not applicable for gasoline models; diesel models may have a dual-battery setup, but specific 2025 diesel Yukon configurations are not yet fully detailed.
Replacement battery options
Given the newness of the 2025 model year, specific part numbers for aftermarket batteries may still be emerging. However, here are general recommendations based on popular brands for the H7/94R group:
- Interstate: MTX-94R/H7 (AGM)
- Optima: YellowTop H7 (AGM) - Note: Optima's direct fit for H7/94R may vary, always double-check dimensions.
- DieHard: Platinum AGM H7 (AGM)
- Odyssey: ODP-AGM94R H7 (AGM)
- ACDelco: 94RAGM (Professional AGM)
AGM vs flooded — which does this vehicle need?
The 2025 GMC Yukon, like many modern vehicles, is equipped with sophisticated electrical systems, including start/stop technology. For these systems, an Absorbent Glass Mat (AGM) battery is required. AGM batteries are designed to handle the increased cycling demands of start/stop systems, where the engine is frequently turned off and on. They offer superior deep-cycle performance, faster recharging, and better vibration resistance compared to traditional flooded lead-acid batteries. Using a flooded battery in a vehicle designed for an AGM can lead to premature battery failure and potential issues with the vehicle's electrical system.
Post-installation relearn / reset procedure
After replacing the battery in your 2025 GMC Yukon, a battery relearn or reset procedure is often necessary to ensure optimal performance and prevent error codes. While exact procedures can vary slightly, here's a general guide:
- Connect the new battery: Ensure all terminals are clean and securely fastened.
- Ignition Cycle: Turn the ignition to the "ON" position (without starting the engine) for a few minutes. Then turn it "OFF." Repeat this a few times.
- Drive Cycle: Drive the vehicle for a short period (10-15 minutes) under various conditions (city and highway driving, if possible). This allows the vehicle's computer (ECM/PCM) to re-learn operating parameters.
- Window Express Up/Down Reset: You may need to reset the power window
More specs for the 2025 GMC Yukon
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
2025 GMC Yukon 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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