Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTESLA2018MODEL 3 BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTACCESSORIES CONTROL SYSTEMSELECTRICAL SYSTEM (2 OF 2) -- MODEL 3KEYLESS ENTRY AND SECURITYMODULE - BODY CONTROLLER - SECURITY (2ND GENERATION) - REMOVE AND REPLACENOTES
2018 Tesla Model 3 Base
Module - Body Controller - Security (2nd Generation) - Remove and Replace: Notes
2018 Tesla Model 3 BaseSECTION Notes
Last modified: 19/01/2024 05:30:03
NOTE:
See Personal Protection
to make sure to wear proper PPE when performing below procedure.
Revision History:
- 2024-01-17: Added step for ODIN routine PROC_VCSEC_X_SET-ROOT-KEY-TO-ALL-REGIONS to be run for vehicles running certain firmware versions.
- 2023-11-20: Updated security controller configuration steps.
- 2023-10-24: Updated post-replacement Toolbox routines.
- 2023-07-21: Added Note about security-related toolbox actions.
NOTE:
Some of the Toolbox Actions within this procedure are related to vehicle security, and can only be performed by Tesla employees or third parties authorized to perform security-related Toolbox Actions. To learn more, see the Service Subscription FAQs available in the user account dropdown menu.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.