General Motors — Exiting Sync/Cruise Modes
Operation · Sync/Cruise system
From a General Motors owner's manual covering: Carb 5.7L, MP 5.0L, MP 5.7L, MP 6.0L. Check it applies to your exact model before use.
Procedure
- Press the Syn/Cru Mode switch (A) to OFF.
- The Sync (D) and Cruise (E) Lamps will go OFF.
- Return both throttle handles back to the Idle/Start position.
- The operator has full individual throttle control over the engines.
Source: General Motors owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.