2018 Kenworth W900 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.
Working on this 2018 Kenworth W900? Run just this one job through Repairius.
No big switch. Write the estimate, text it for approval, and get paid on your phone. Keep everything else the way it is.
14-day free trial · credit card required · cancel anytime
Quick reference
| Item | Detail |
|---|---|
| FCC ID | LHJ011 |
| OEM Fob PN | P57-1002-100 (Remote Head Key) |
| Aftermarket Options | Various |
| Battery Type | CR2032 |
| Programmable On-Board? | No, dealer/locksmith programming required |
| Cuts Required? | Yes, for integrated key |
Step-by-step on-board programming
The 2018 Kenworth W900 does not support DIY on-board key fob programming. Programming a new key fob or remote for your Kenworth W900 requires specialized diagnostic equipment, which is typically found at a Kenworth dealership or a qualified automotive locksmith.
This is primarily due to the sophisticated security systems in modern heavy-duty trucks. The vehicle's computer (often referred to as the Body Control Module or BCM) needs to be accessed and programmed to recognize the unique rolling codes of your new key fob. Attempting to program these systems without the correct tools can not only fail but could potentially cause issues with your truck's electrical system.
Battery replacement
To replace the battery in your 2018 Kenworth W900 key fob (P57-1002-100), follow these steps:
- Locate the seam: The key fob is typically a two-piece plastic casing. Look for a small seam around the edge of the fob.
- Pry open the case: Use a small, flat-head screwdriver or a coin to carefully pry open the two halves of the fob. Start from a corners or a notch if available.
- Remove the old battery: Once open, you'll see the circuit board and the coin-cell battery. Note the orientation of the battery (which side is up) before removing it. Gently pry out the old CR2032 battery.
- Insert the new battery: Place a new CR2032 battery into the compartment, ensuring it's oriented correctly (positive (+) side up, or as indicated by the fob).
- Reassemble the fob: Carefully snap the two halves of the key fob back together until it's securely closed.
- Test the fob: Test the newly battery key fob to ensure it locks and unlocks your truck.
Where to buy a replacement fob
When it comes to purchasing a replacement key fob for your Kenworth W900, you generally have a few options:
- Kenworth Dealership:
- Pros: Guaranteed genuine OEM part, often includes programming in the purchase price, and technicians are highly familiar with their vehicles.
- Cons: Most expensive option. Expect to pay $200 - $400 for the fob and programming.
- Automotive Locksmith:
- Pros: Can often provide OEM or high-quality aftermarket equivalents. More affordable than the dealer, and many offer mobile services, coming to your location. They have the necessary programming equipment.
- Cons: Ensure they specialize in heavy-duty trucks and have the specific software for Kenworth. Prices can range, but typically $150 - $300 for the fob and programming.
- Online Retailers (e.g., Amazon, eBay):
- Pros: Cheapest option for the physical fob itself. You can find OEM or aftermarket fobs for $30 - $80.
- Cons: You still need to factor in the cost of professional programming (not included in the price of the fob). There
More specs for the 2018 Kenworth W900
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
2018 Kenworth W900 Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
Browse by make
Running an auto or diesel repair shop?
Compare Repairius to the shop software you're paying for
$99.99/month (first location included), unlimited users, 14-day free trial.