Circuit/System Description
WARNING: This page is about a different car, the 2021 GMC Terrain. However, it is still accessible from the selected car via links, so may be relevant.
DTC P18A8 will set with a hydraulic/mechanical condition.
For an overview of the component/system, refer to:
- Park - Engine Running (Hydraulic Circuits Without ETRS) , or Park - Engine Running (Hydraulic Circuits With ETRS) , or Park - Engine Running (Mechanical Power flow)
- Reverse (Hydraulic Circuits Without ETRS) , or Reverse (Hydraulic Circuits With ETRS) , or Reverse (Mechanical Power flow)
- Neutral - Engine Running (Hydraulic Circuits Without ETRS) , or Neutral - Engine Running (Hydraulic Circuits With ETRS) , or Neutral - Engine Running (Mechanical Power flow)
- Drive Range, First Gear (Hydraulic Circuits Without ETRS) , or Drive Range, First Gear (Hydraulic Circuits With ETRS) , or Drive Range, First Gear (Mechanical Power flow)
- Drive Range, Second Gear (Hydraulic Circuits Without ETRS) , or Drive Range, Second Gear (Hydraulic Circuits With ETRS) , or Drive Range, Second Gear (Mechanical Power flow)
- Drive Range, Third Gear (Hydraulic Circuits Without ETRS) , or Drive Range, Third Gear (Hydraulic Circuits With ETRS) , or Drive Range, Third Gear (Mechanical Power flow)
- Drive Range, Fourth Gear (Hydraulic Circuits Without ETRS) , or Drive Range, Fourth Gear (Hydraulic Circuits With ETRS) , or Drive Range, Fourth Gear (Mechanical Power flow)
- Drive Range, Fifth Gear (Hydraulic Circuits Without ETRS) , or Drive Range, Fifth Gear (Hydraulic Circuits With ETRS) , or Drive Range, Fifth Gear (Mechanical Power flow)
- Drive Range, Sixth Gear (Hydraulic Circuits Without ETRS) , or Drive Range, Sixth Gear (Hydraulic Circuits With ETRS) , or Drive Range, Sixth Gear (Mechanical Power flow)
- Drive Range, Seventh Gear (Hydraulic Circuits Without ETRS) , or Drive Range, Seventh Gear (Hydraulic Circuits With ETRS) , or Drive Range, Seventh Gear (Mechanical Power flow)
- Drive Range, Eighth Gear (Hydraulic Circuits Without ETRS) , or Drive Range, Eighth Gear (Hydraulic Circuits With ETRS) , or Drive Range, Eighth Gear (Mechanical Power flow)
- Drive Range, Ninth Gear (Hydraulic Circuits Without ETRS) , or Drive Range, Ninth Gear (Hydraulic Circuits With ETRS) , or Drive Range, Ninth Gear (Mechanical Power flow)
- Fluid Passages (Hydraulic Circuits Without ETRS) , or Fluid Passages (Hydraulic Circuits With ETRS)