Compliance Parts LMC5 Module C5 Corvette steering column lock bypass Black — solid-state plug-and-play

The Compliance Parts LMC5 Module is a solid-state bypass that simulates a functioning column lock to prevent or fix steering lock failures on 1997–2004 C5 Corvettes without permanent modifications.

Many 1997–2004 C5 Corvettes remain vulnerable to steering column lock malfunctions that can trigger dashboard warnings, disable the drive at low speeds, or leave the wheel physically locked. The LMC5 installs in the passenger footwell, requires no changes to recall repairs or other installed devices, and restores reliable electronic signaling for the column lock using a 100% solid-state circuit with no moving parts.

How does the LMC5 Module stop steering lock-related drivability issues?

The LMC5 emulates a correctly operating column lock sensor so the vehicle’s electronics receive the expected signals even if the original lock assembly is failing. That prevents the ECU from throwing 'Pull Key,' 'Wait 10 Seconds,' 'Service Column Lock' messages and avoids the 2 mph fuel cut-off that can occur during certain failures.

• Replaces faulty lock signals with a stable, simulated output
• Eliminates intermittent electronic lock errors that disable drive
• Solid-state design removes mechanical failure points
• Compatible with existing recall fix installations

What are the installation steps and does it alter my Corvette permanently?

Installation is performed in the passenger footwell and is designed to be non-destructive—no permanent modifications are needed to your column or to previously installed recall devices. The module connects to the vehicle wiring with plug-and-play wiring; basic hand tools are all that’s generally required for the standard kit.

• Mounts in the passenger footwell for easy access and concealment
• Uses vehicle wiring harness connections—no cutting or splicing required for most installs
• Standard kit requires common hand tools; optional kit adds wrenches
• Fully removable if you want to revert to original configuration

Which LMC5 kit should I choose if my steering wheel is locked or free?

Choose the basic LMC5 Module if the steering wheel turns freely but you experience electronic lock errors. If the column is mechanically stuck in the locked position, pick the LMC5 & Unlocker Combo to free the wheel first. For a ready-to-install solution with tools included, the LMC5 & Unlocker & Tool Kit Combo provides the Unlocker plus 1/4 and 5/16 wrenches so no additional tools are needed.

• LMC5: for C5s with a freely turning steering wheel
• LMC5 + Unlocker: unlocks mechanically stuck columns before bypass installation
• LMC5 + Unlocker + Tool Kit: includes necessary wrenches for a single-stop install
• All kits maintain compatibility with prior recall repairs

Who is this product for? The Compliance Parts LMC5 Module is intended for owners of 1997–2004 C5 Corvettes (manual transmissions all years; automatics 1997–2000 and 2001–2004 European export models) who are experiencing column lock warnings, unexpected drivability shutdowns, or a physically locked steering wheel. It also suits owners who want an insurance-style, non-invasive solution to prevent future column lock failures without altering recall work. U.S. domestic 2001–2004 automatic Corvettes are generally not susceptible to this specific failure, so verify your production and transmission before purchase. Compliance Parts provides U.S.-based telephone tech support, Mon–Sat 9–5 PST to assist with diagnosis and step-by-step installation help.