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Likely a broken wire that attaches to the shifter interlock solenoid - shifter MUST BE in park position before key will turn to the OFF position.
Broken wire is preventing solenoid from releasing the key.
Location : down in the shifter cavity below console cover - do not know your skill level.
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Location : down in the shifter cavity below console cover - do not know your skill level. https://repairpal.com/repair-shops/auto-repair-in-rocky-mount-north-carolina