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, the idle returns to normal and the icon in your mirror alerts you

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