2017 Kenworth W900 Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

Unfortunately, the 2017 Kenworth W900 does not support DIY on-board programming for key fobs. Due to the sophisticated security systems in modern commercial vehicles, programming a new key fob requires specialized diagnostic equipment typically found at a Kenworth dealership or a qualified automotive locksmith.

This is because the key fob for your Kenworth W900 isn't just a simple remote; it often contains a transponder chip which is part of the vehicle's immobilizer system. This system prevents the truck from starting if an unprogrammed or incorrect key is used, adding a layer of security against theft. The programming process involves linking this transponder chip and the remote functions to your truck's computer system (ECM).

Battery replacement

Replacing the battery in your 2017 Kenworth W900 key fob is usually a straightforward process:

1. Locate the seam: Carefully examine your key fob for a seam around its edge. Some fobs may have a small notch.
2. Pry open: Use a small, flat-head screwdriver or a coin to gently pry the two halves of the fob apart at the seam. Be careful not to damage the internal components.
3. Identify battery type: Once opened, you'll see the battery. The 2017 Kenworth W900 key fob typically uses a CR2032 coin cell battery.
4. Remove old battery: Note the orientation of the old battery (usually positive side up) and carefully remove it.
5. Insert new battery: Place the new CR2032 battery into the fob with the positive side facing the same direction as the old one.
6. Snap together: Align the two halves of the key fob and press them firmly together until they snap securely into place.

Where to buy a replacement fob

When it comes to replacing your Kenworth W900 key fob, you have a few options, each with its pros and cons:

• Kenworth Dealership:

  • Pros: Guaranteed genuine OEM part, often includes programming in the total cost, expert technicians.
  • Cons: Most expensive option, can be slow to get an appointment.
  • Ballpark Price: Expect to pay $200 - $400+ for the fob and programming.

• Automotive Locksmith:

  • Pros: More affordable than a dealership, often mobile (they come to you), usually quicker service, can program both OEM and aftermarket fobs.
  • Cons: Quality of aftermarket fobs can vary, ensure the locksmith has experience with commercial vehicles.
  • Ballpark Price: Expect to pay $150 - $300 for a new fob and programming.

• Online Retailers (e.g., Amazon, eBay):

  • Pros: Cheapest option for the fob itself.
  • Cons: You still need to find a locksmith or dealer for programming, risk of purchasing a non-compatible or low-quality aftermarket fob, no warranty on programming.
  • Ballpark Price: Fobs can range from $30 - $100, but remember to factor in programming costs.

If on-board programming isn't supported

As established, on-board programming is not an option for the 2017 Kenworth W900. This means you will need to rely on a professional for programming.

• Cost Expectations: As noted above, costs can range significantly depending on whether you go to a dealership or an independent locksmith. Always get a quote beforehand. Some locksmiths will offer a package deal for the fob, cutting (if applicable), and programming.
• Immobilizer Transponder: The key fob for your W900 contains a transponder chip that communicates with your truck's immobilizer system. This is a critical security feature. When a new fob is programmed, the transponder code is registered with the truck's engine control module (ECM). If this programming isn't done correctly, or if the transponder chip is faulty or missing, the truck will not start, even if the remote functions of the fob work perfectly. If you have an integrated key and fob, the key portion may also need to be cut to match your truck's ignition and door locks, adding to the service complexity.

Find a mobile locksmith or shop on Repairius.