2015 Peterbilt 389 Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

The 2015 Peterbilt 389, in most configurations, does not come equipped from the factory with a remote key fob for keyless entry. Peterbilt heavy-duty trucks typically relied on a traditional key for ignition and door locks in this model year. Therefore, there is no on-board programming procedure for a key fob because it was not an offered feature.

If you are looking to add keyless entry functionality to your 2015 Peterbilt 389, you would need to explore aftermarket keyless entry systems. These systems are entirely separate from the factory wiring and would come with their own dedicated remote fobs and programming instructions. Installation and programming of such a system would typically require a professional automotive electrical technician or a specialized truck accessory shop.

Battery replacement

Since there is no factory key fob for the 2015 Peterbilt 389, there is no key fob battery to replace. The traditional ignition key does not contain a battery.

Where to buy a replacement fob

As established, there is no OEM key fob for the 2015 Peterbilt 389. If you're interested in adding keyless entry, you'll be looking at aftermarket solutions:

• Aftermarket Keyless Entry Kits (Specialized Truck Shops/Online Retailers): These kits can range from $150 to $500+, depending on features and brand. Installation costs would be additional, typically $100-$300 for a professional. You would purchase the complete system, which includes the fobs. Compatibility with your specific truck would be a critical consideration.
• Dealer: A Peterbilt dealer would primarily be able to assist with replacement traditional ignition keys and programming related to the vehicle's immobilizer system if present, but not key fobs for remote entry for this specific model year.

If on-board programming isn't supported

For the 2015 Peterbilt 389, on-board programming for a remote key fob is not supported because there was no factory-installed remote keyless entry system. If you desire remote keyless entry, you will need to invest in an aftermarket system.

Immobilizer Transponder: The 2015 Peterbilt 389 does utilize an immobilizer system to prevent theft. This means your traditional ignition key contains a transponder chip that needs to be programmed to the truck's engine control unit (ECU). If you need a new ignition key, it will require specialized equipment (a scan tool) to program the transponder to the truck. This service is typically performed by a Peterbilt dealer or a qualified automotive locksmith specializing in heavy-duty vehicles. Expect to pay anywhere from $150 to $300 for a new cut and programmed transponder key from a locksmith, and potentially more at a dealership.

Cost Expectations for Aftermarket Systems: As mentioned above, a full aftermarket keyless entry system including installation will likely range from $250 to $800. Be sure to choose a reputable installer to ensure proper wiring and functionality.

Find a mobile locksmith or shop on Repairius.