MCKB042 — Solder-Free Adapter for Buick 7-Button Smart Keys
This Buick 7-button smart key remote — with lock, unlock, hatch, remote start, panic, and left/right sliding side door controls — runs on an NCF29XX chip board that needs a precise, stable connection for reliable programming. The MCKB042 is a dedicated solder-free adapter built specifically for this Buick key shape, allowing locksmiths to connect directly to the PCB without soldering. It’s designed to pair with the CNP259 Super NXP Killer and other compatible NXP-focused programmers, giving shops a fast, repeatable way to handle this advanced multi-function remote.
MCKB042 Key Features
- Built for this Buick 7-button remote — Matched to the lock, unlock, hatch, remote start, panic, and dual side door button layout
- No soldering required — Direct, solder-free contact with the NCF29XX board
- Pairs with the CNP259 Super NXP Killer — Ready to use for Buick remote adding workflows
- Consistent, dependable contact — Fewer failed reads and re-attempts during programming
- Small footprint, easy to carry — Stores neatly alongside other adapters in a tool case
MCKB042 Technical Specifications
| Specification | Details |
|---|---|
| Part Number | MCKB042 |
| Brand Compatibility | Buick |
| Key Shape | 7-button remote — lock, unlock, hatch, remote start, panic, side door (left), side door (right) |
| Chip Support | NCF29XX |
| Adapter Type | Solder-free |
| Works With | CNP259 Super NXP Killer |
| Function | Key remote adding |
Compatibility
The MCKB042 is built for this specific Buick 7-button remote — lock, unlock, hatch, remote start, panic, and left/right side door functions — on the NCF29XX chip platform, and pairs with the CNP259 Super NXP Killer or other compatible NXP-focused programmers. Check your remote’s button layout against the reference image before ordering, since this adapter isn’t interchangeable with GMC’s MCKB025, Cadillac’s MCKB030, Chevrolet’s MCKB034, or other GM-group adapters in the line.

