General Motors — Entering Cruise Mode
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
- You must be in Sync Mode prior to entering Cruise Mode.
- Move the Master throttle to the desired engine speed.
- Press the Speed Set/Cancel switch (B) to the Set position.
- Slowly push the Master handle to the full forward position.
- The Cruise Lamp (E) should be steady ON indicating Cruise Mode is engaged.
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.