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.
Sentry Key Immobilizer Module Programming
SECURED ACCESS mode is not required to check programmed status of key.
If PCM is replaced, unique secret key data must be transferred from Sentry Key Immobilizer Module (SKIM) to Powertrain Control Module (PCM). This procedure requires SKIM to be placed in SECURED ACCESS mode using 4-digit PIN code.
If 3 attempts are made to enter secured access mode using an incorrect PIN, SECURED ACCESS mode will be locked out for one hour. To exit lock out mode, turn ignition switch to RUN position and leave there for one hour. Ensure all accessories are turned off. Monitor battery state and connect battery charger is necessary.
To program smart keys using "customer programming method" requires 2 valid smart keys. See appropriate ANTI-THEFT SYSTEMS article.
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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.