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.
General Information
If Powertrain Control Module (PCM) is replaced, unique "Secret Key" data must be transferred from Sentry Key Immobilizer Module (SKIM) to PCM. This procedure requires SKIM to be placed in SECURED ACCESS mode using 4-digit Personal Identification Number (PIN) code.
If PCM and SKIM are replaced at the same time, program Vehicle Identification Number (VIN) into PCM first. All vehicle keys will need to be replaced and programmed into new SKIM.
SECURED ACCESS mode is not required to check programmed status of key.
If 3 attempts are made to enter SECURED ACCESS mode using an incorrect PIN code, SECURED ACCESS mode will be locked out for one hour. To exit lock out mode, turn ignition switch to ON position continuously for one hour then enter correct PIN code. Ensure all accessories are turned off. Monitor battery state and connect battery charger if necessary.
To program sentry keys using "customer programming method", 2 valid sentry keys are required. See CUSTOMER LEARN PROGRAMMING METHOD .
NO RELATED
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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.