Cadillac XT4 Key Replacement Guide
Last updated: September 2026 · Verified against OEM part numbers
Quick answer — Cadillac XT4
The Cadillac XT4 (2019-2021) uses the HYQ2EB smart key — 433 MHz (SKU PCK-CA-2011) — verified against the original OEM part number. See every compatible option in the table below.
- OEM part number: HYQ2EB
- Frequency: 433 MHz
- Key type: Smart Key
- Years covered: 2019-2021
- Wholesale: MOQ 5 units per SKU, models mixable in one order
Which Cadillac XT4 key fits your vehicle?
💬 Ask on WhatsAppCompatible keys for Cadillac XT4
| Years | Photo | Key |
|---|---|---|
| 2019-2021 | | HYQ2EB 13591382 433MHz 46 Chip 3+1 Button (Start) Smart Key for Cadillac XT4 SKU: PCK-CA-2011 |
Before you order
- Match the year range — Cadillac changed key systems across model years. Check your registration year.
- Check your current key — the OEM number printed on your key matches the table above.
- Programming — smart keys need a compatible programmer (Xhorse, VVDI, Autel). We can advise which one works for each key.
Frequently asked questions
What frequency is the Cadillac XT4 key?
The Cadillac XT4 key operates on 433 MHz. Frequency is fixed in the key hardware and cannot be reprogrammed — a key bought on the wrong frequency will not lock, unlock or start the car.
Which key fits my Cadillac XT4?
The Cadillac XT4 (2019-2021) uses the HYQ2EB 13591382 433MHz 46 Chip 3+1 Button (Start) Smart Key for Cadillac XT4 (SKU PCK-CA-2011). Check the table above for all compatible options, verified against OEM part numbers.
Do you supply Cadillac XT4 keys wholesale?
Yes. We supply locksmiths and key distributors at wholesale prices with MOQ from 5 units. Message us on WhatsApp for today's price list.
Can a Cadillac XT4 key be programmed without the dealer?
In most cases yes, using tools like Xhorse, VVDI or Autel. We can advise the right programmer for each key SKU.
Ready to order a Cadillac XT4 key?
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