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Vehicles/Cadillac/CT5 2020–2024

I (Alpha II)

Cadillac CT5
2020–2024

Key reference: 13536990

Verified · record updated 3 May 2026

GM CAN FD IMMOAdd a key · IntermediateAll keys lost · Expert

Key

At a glance

Key type: Smart Key
Buttons: 5
Battery: CR2450
Cloning: Not possible
OEM part no.: 13536990, 13538860, 13541988, 13543964, 85541927

Compatible tools

Confirmed

4 tools confirmed

MaxiIM IM608 Pro IIAutel
K518ProLonsdor
X300 DP PlusOBDSTAR
AutoProPAD G2 TurboXtool

OBD port

Where to find it

Location

Driver's footwell, under the dashboard above the brake pedal, near the steering column. Accessible without tools or trim removal.

OBD locations for every Cadillac

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