Security Malfunction

Asked by Apr 15, 2010 at 08:39 PM about the Chevrolet Tahoe

Question type: Maintenance & Repair

recently my tahoe won't start, had it towed, tech reset the computer, gave me instructions as how to override this issue; turn on without starting for 11 minutes. off for 30 seconds; repeat.   This works.   What and where is this issue located?  tilt wheel, ignition etc..........  

1 Answer

345

this is related to the passlock module, which is part of the ignition cylinder assembly (passlock sensor part of the ignition housing)...it's either a worn passlock sensor or worn transponder (part of the key). intermittent condition. 10 minute relearn procedure involves leaving key on for 10 minutes until security indicator stops flashing.

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