2014 Kenworth T680 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 | LHJ011 |
| OEM Fob PN | P57-1002 |
| Aftermarket Options | Strattec 5928135, Dorman 13912 |
| Battery Type | CR2032 |
| Programmable On-Board? | No (requires professional diagnostic tool) |
| Cuts Required? | No (fob controls locks, not ignition) |
Step-by-step on-board programming
The 2014 Kenworth T680 does not support DIY on-board programming for its key fobs. Programming requires a specialized diagnostic tool, typically available only to authorized Kenworth dealerships or professional automotive locksmiths. This is due to the advanced security systems integrated into commercial vehicles.
Battery replacement
- Locate the small notch or slot on the side of the key fob.
- Carefully insert a small, flat-head screwdriver or a coin into the slot.
- Gently twist the screwdriver to pry open the two halves of the fob casing.
- Remove the old CR2032 battery, noting its orientation (positive side up).
- Insert the new CR2032 battery with the positive side facing up.
- Align the two halves of the fob casing and press them firmly together until they snap shut.
Where to buy a replacement fob
- Kenworth Dealership: Expect to pay the highest price, often ranging from $150 to $300 or more for the fob itself, plus separate programming charges. The advantage is guaranteed OEM quality and compatibility.
- Automotive Locksmith: A great balance of cost and expertise. Locksmiths specializing in commercial vehicles can typically source and program fobs for less than a dealership, often in the range of $100 to $250 total. They also offer the convenience of mobile service.
- Online Retailers (e.g., Amazon, eBay): You can often find aftermarket fobs for $30 to $80. While this is the most affordable option for the fob itself, remember that you'll still need to pay for programming services from a locksmith or dealer, as DIY programming is not possible for this vehicle.
If on-board programming isn't supported
Since the 2014 Kenworth T680 requires professional programming, anticipate the following costs:
- Programming Fee: Dealerships may charge an hour of labor (e.g., $100-$150) for programming, even if it takes less time. Locksmiths often have a flat fee for programming, which can be more economical.
- Immobilizer Transponder: The key fob itself controls the remote door locks and often integrates the immobilizer transponder, which is essential for starting the truck. If you are replacing a lost or damaged transponder-equipped key (not just the remote portion), additional programming may be required for the vehicle's immobilizer system, adding to the overall cost. The 2014 Kenworth T680 utilizes a sophisticated immobilizer system that requires specialized tools for transponder programming.
Find a mobile locksmith or shop on Repairius.
More specs for the 2014 Kenworth T680
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
2014 Kenworth T680 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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