Low fluid level
Do not drive the vehicle if the fluid level does not show at all on the dipstick.
Driving the vehicle with less than the recommended fluid level may result in transmission failure. An under fill condition of transmission fluid may cause shift and/or engagement concerns and/or possible damage to the transmission.
See also:
Engine Coolant Change Record
Engine Coolant Change Log
...
Blocked sensor
An extreme build-up of materials on
the left and/or right quarter panel
fascias such as mud or snow can
cause degraded performance of the
BLIS . Also, heavy rain can cause
the same effect. ...
Preparing your vehicle
When the battery is disconnected or a new battery is installed, the
automatic transmission must relearn its shift strategy. As a result, the
transmission may have firm and/or soft shifts. This ope ...