Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Shifter/Ignition Interlock

The Shifter/Ignition Interlock is a mechanically cable operated system that interconnects the automatic transmission floor mounted shifter to the steering column ignition switch. The interlock system locks the floor mounted shift lever into the PARK position whenever the ignition switch is in the lock or accessory position. When the key is in the OFF or RUN position, the shifter is unlocked and will move into any position. The interlock system also prevents the ignition switch from being turned to the lock or accessory position unless the shifter is in the PARK position.