Fob Fingerprint
Identify the key before you trust a match.
Use the vehicle, physical key, identifiers, and symptoms together. This is a worksheet, not a VIN collector.
Photo: Bence Balla-Schottner / Unsplash
Two car keys can look almost identical and still be incompatible. Before Fix My Keys recommends a vehicle-specific replacement, we want more than year/make/model.
This worksheet stays on your screen. Do not send us a VIN, title, driver’s-license image, account password, or payment information.
1. Vehicle basics
- Year
- Make
- Model
- Trim, if known
- Push-button start or keyed ignition?
- Remote start, power liftgate, or other key-controlled equipment?
2. Fob shape and controls
- How many buttons?
- Lock / unlock
- Panic
- Trunk or liftgate
- Remote start
- Sliding-door buttons
- Separate metal key, flip blade, hidden emergency key, or no visible blade?
3. Identifiers
Check the original key, battery compartment, rear case, or documentation for identifiers such as:
- FCC ID or transmitter identifier
- OEM / manufacturer part number
- IC or other regional identifier, where present
- Blade style or code if known
Do not assume every number printed on a case is a compatibility identifier.
4. What still works?
- Locks/unlocks?
- Starts the vehicle?
- Works only close to the vehicle?
- Some buttons but not others?
- Works intermittently?
- Completely dead?
5. What changed?
- Battery replacement
- Dropped or crushed
- Water exposure
- Case/shell replacement
- Vehicle battery replacement
- Lost key / new spare
- No obvious event
Why this matters
The Fob Fingerprint lets Fix My Keys compare the vehicle, the physical key, the identifiers, and the symptom before routing to a product or service. If those clues conflict, the safe result is stop and verify—not “close enough.”
Our compatibility rule
A product route will eventually require a verified or verified-with-conditions record. If we only have a cross-check or incomplete evidence, we may explain what to investigate next, but we will not call a replacement compatible.