MALFUNCTIONS Which May Cause a Blinking PRNDL
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Failure to detect turbine speed pull-down during a shift may occur under the following conditions:
- A clutch is failed and the transmission cannot attain the requested range.
- Invalid gear ratio
- Pressure control solenoid failure
- Turbine or output speed sensor failure
- Lack of pressure at startup