Pontiac LeMans 1988-1992 Key Codes

The Pontiac LeMans 1988-1992 uses key code series S, with 1,200 documented codes spanning the range S4001-S5200. Uses a 10-cut double-sided profile. Set the duplicator to flat-bottom cuts 0.1″ wide. Code is typically stamped on the original key bow or available via the VIN through the dealer. The lock is decodable with a Lishi tool. Sign in for the specific match. Bitting data verified as of May 10, 2026.

Code prefix
S
Code range
S4001-S5200
Years
1988-1992
Total codes
1,200
Lishi decodable
Yes (sign in for tool name)
Cuts per key
10
Last verified

Common questions

What key code series does the Pontiac LeMans 1988-1992 use?
The Pontiac LeMans 1988-1992 uses key code series S, with 1,200 documented codes ranging from S4001-S5200.
Can the Pontiac LeMans 1988-1992 lock be decoded?
Yes. A Lishi-style 2-in-1 decoder reads the door or ignition lock without disassembly, revealing the bitting code that can be cross-referenced against this series' key code database. The specific Lishi tool match for this vehicle is available to signed-in locksmiths.
How many cuts does a Pontiac LeMans 1988-1992 key have?
10 cuts on a double-sided profile. Each cut position has a depth value documented in the bitting code, which determines the key cutting pattern.
When was the Pontiac LeMans 1988-1992 key data last verified?
Bitting data for the Pontiac LeMans 1988-1992 was last verified May 10, 2026. Verification timestamps are tracked per series, and updates appear here as locksmiths confirm code accuracy in the field.

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