2025 Honda Civic Key Fob Programming Guide
AI-generated reference. Always verify torque values, fluid capacities, intervals, and procedures against the manufacturer's service manual or OEM repair information before performing work. Repairius is not liable for damage from acting on this content without verification.
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Quick reference
| Item | Detail |
|---|---|
| FCC ID | KR5T44 |
| OEM Fob PN | 72147-T44-A01 |
| Aftermarket Options | Keyless2Go, Key-Kong |
| Battery Type | CR2032 |
| Programmable On-Board? | No |
| Cuts Required? | Yes, laser cut |
Step-by-step on-board programming
Unfortunately, the 2025 Honda Civic does not support on-board, do-it-yourself (DIY) key fob programming. The vehicle's immobilizer system requires specialized diagnostic scan tool equipment to pair a new fob. This is a security measure to prevent unauthorized key duplication. You will need to contact an automotive locksmith or a Honda dealership to have a new key fob programmed to your vehicle.
Battery replacement
Replacing the battery in your 2025 Honda Civic key fob is a simple task you can do at home.
- Locate the release button: On the back of the key fob, you'll find a small release button. Press this button and slide the back cover off.
- Remove the old battery: Gently pry out the old CR2032 battery. A small flathead screwdriver can be helpful.
- Insert the new battery: Place the new CR2032 battery into the compartment, ensuring the positive (+) side is facing up.
- Replace the cover: Slide the back cover back on until it clicks into place.
Where to buy a replacement fob
- Honda Dealership: The most expensive option, but you're guaranteed an authentic OEM fob. Expect to pay around $200–$400 for the fob and programming.
- Automotive Locksmith: A more affordable option than the dealership. Locksmiths can typically source OEM or high-quality aftermarket fobs and have the necessary equipment to program them. Costs can range from $150–$300.
- Online Retailers (Amazon, etc.): The cheapest way to get a replacement fob, with prices as low as $30–$80. However, be cautious of quality and ensure you're buying from a reputable seller. You will still need to have the fob programmed by a locksmith or dealer.
If on-board programming isn't supported
As mentioned, the 2025 Honda Civic requires a professional with a scan tool to program new key fobs. This is because the key fob contains a transponder chip that communicates with the vehicle's immobilizer system. This chip needs to be properly coded to your car to start the engine. The cost for this service typically ranges from $75 to $150, in addition to the cost of the fob itself. A laser key cutting machine is also required to cut the physical key blade.
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More specs for the 2025 Honda Civic
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.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
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.
Same spec — other model years
Maintenance & repair guides
2025 Honda Civic 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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