Cadillac Key Replacement: Fob Compatibility and Quote Checklist

When replacing a Cadillac fob, the important question is what the finished key must do. Starting the vehicle, operating remote buttons and providing mechanical backup access are separate functions to discuss before buying hardware.

This guide is for choosing a replacement or planning a spare. If your last key is missing and the Cadillac cannot be driven, use the lost Cadillac key recovery checklist.

Begin with the model year and current equipment

An Escalade estimate does not automatically apply to a CTS, ATS or XT5. Select your vehicle first:

• Cadillac Escalade
• Cadillac XT5
• Cadillac CTS
• Cadillac ATS

The Cadillac catalog lists other models. Tell us whether you use an inserted ignition key or push-button start, whether any key still starts the vehicle and which functions need replacing.

A picture of the current fob can help with identification. It does not establish compatibility by itself. For newer or unfamiliar configurations, request explicit confirmation that the exact key service is supported before ordering hardware or booking.

Separate a spare-key request from a fob fault

If one key works normally, adding a spare is a straightforward request to describe: you want another independently usable starting key.

If a fob is intermittent or damaged, explain the symptoms first. Does the engine still start? Do the buttons respond? Is there a visible broken case or damaged blade? Follow your owner's manual for battery identification and replacement instead of assuming that every Cadillac fob uses the same battery.

A "key not detected" message alone does not identify the failed component. A key that sticks in an ignition is a different symptom again; our ignition service page explains that service. If the usable key is simply inside the locked vehicle, request car lockout help.

Compare quotes for the same finished result

For the 2018 Cadillac Escalade, current calculator estimates are:

The 2018 Escalade calculator applies to that example. Select the actual year for your Cadillac and confirm the trim, key configuration and service availability. These are not brand-wide prices.

Ask each provider to specify:

1. The key or fob hardware being supplied and the number of keys.
2. Whether any emergency blade and cutting are included.
3. The programming work and functions covered.
4. Travel or other charges that apply to the appointment.
5. The complete price before work begins.

Ask whether the required part is available and whether the vehicle must be brought in. A hardware-only price does not represent a finished, programmed key quote.

Agree on the functions to test

Tell us which existing features matter to you: lock/unlock, trunk or liftgate release, remote start or other buttons if equipped. Confirm that the proposed hardware supports the requested functions rather than assuming that every replacement does.

At handover, test the new key separately from any other fob nearby. Check starting, the agreed buttons and the emergency blade where applicable. Bring your remaining keys and verify that the ones you intend to keep are usable after service.

Book mobile service in Jacksonville

Send the year, model, key symptoms or spare-key request, and the vehicle's location through the quote page, or call +1 (904) 515-9573. We confirm support, availability and an arrival estimate before dispatch, and the complete price before work begins.

We serve Jacksonville and the Beaches. An apartment entrance, parking level or office parking location helps us plan access to your Cadillac.