High idle switch

  • Monitors engine temperature during the high idle warm-up period
  • The high idle icon appears in your rearview mirror
  • When the engine is warm enough, idle returns to normal and the icon in your mirror alerts you

Requires 2500 or 3500 models, Vortec 6.0L V8 SFI engine or 6.0L V8 SFI Gaseous engine and the Convenience Package. Not available with 1500 models.