Ignition Cylinder Won't Turn Past Lock Position - Lubricate Cylinder

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Problem

Ignition cylinder on an 88 Supra locked up and would not turn past the 'lock' position after the car sat for about a month. The key had a little jiggle but would not rotate to ACC or any other position. The steering wheel was not locked. The ignition cylinder was relatively new.

Key inserts into ignition but will not turn past lock positionKey has slight jiggle but no rotationNo accessory power, no start capabilityProblem appeared after car sat unused for approximately one month

Root Cause

Internal binding in the ignition lock cylinder, likely caused by lack of lubrication and the car sitting unused for an extended period, allowing the lock pins/wafers to stick.

Confidence

Low confidence — Multiple community members agreed on this solution

View Original Thread →Posted May 2025 on SupraForums.com