2023 International LT 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 | IYZ-C01C |
| OEM Fob PN | 2592642C91 |
| Aftermarket Options | Keyless Entry Remote Inc. IYZ-C01C, various online retailers |
| Battery Type | CR2032 |
| Programmable On-Board? | No |
| Cuts Required? | No, it's a keyless remote |
Step-by-step on-board programming
The 2023 International LT does not support on-board programming for key fobs. Programming a new key fob requires specialized diagnostic equipment to communicate with the vehicle's immobilizer system. This means you will need to have a dealership or a qualified locksmith program the new remote for you. The reason for this is to enhance the security of the vehicle and prevent unauthorized access.
Battery replacement
Replacing the battery in your 2023 International LT key fob is a simple process you can do yourself.
- Open the fob: Look for a small seam or slot on the side of the key fob. Use a small flathead screwdriver or a coin to gently pry the two halves of the fob apart.
- Remove the old battery: The battery is a CR2032 coin cell. Take note of the battery's orientation (+/-) before removing it.
- Insert the new battery: Slide the new CR2032 battery into place, making sure it is oriented correctly.
- Snap the fob back together: Align the two halves of the key fob and press them firmly together until they click into place.
Where to buy a replacement fob
- Dealership: This is the most expensive option, but you are guaranteed to get a genuine OEM key fob that is compatible with your vehicle. Expect to pay anywhere from $150 to $300 for the fob and programming.
- Locksmith: A qualified automotive locksmith can often source OEM or high-quality aftermarket fobs for a lower price than the dealership. They will also have the necessary equipment to program the fob to your truck. This can be a more convenient option as many locksmiths offer mobile services. The total cost will likely be in the $100 to $200 range.
- Amazon/Online Retailers: You can find a wide variety of aftermarket key fobs on Amazon and other online retailers for as little as $20. However, the quality can be inconsistent, and you will still need to have the fob programmed by a locksmith or dealer. Be sure to match the FCC ID (IYZ-C01C) to ensure compatibility.
If on-board programming isn't supported
As mentioned, the 2023 International LT requires a professional to program new key fobs. This is due to the vehicle's immobilizer system, which includes a transponder chip in the key fob. The transponder communicates with the vehicle's engine control unit (ECU) to authorize the engine to start. Without proper programming, the vehicle will not start, even if the keyless entry functions work. This security feature prevents theft. When a locksmith or dealer programs a new fob, they are essentially pairing the transponder chip with your truck's immobilizer system.
Find a mobile locksmith or shop on Repairius.
More specs for the 2023 International LT
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
2023 International LT 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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