check transmission fluid OPEL ASTRA K 2018 Owner's Manual

In brief17Automatic transmissionP:park positionR:reverseN:neutral modeD:automatic modeM:manual mode<:upshift]:downshift
The selector lever can only be movedout of P when the ignition is on and
the brake pedal is applied. To engage
P or R, press the release button.
Automatic transmission 3 169.
Manual transmission automatedN:neutral positionD:automatic modeM:manual mode<:upshift]:downshiftR:reverse
Engage reverse only when vehicle is stationary.
Manual transmission automated
3 173.
Starting off
Check before starting off ● tyre pressure and condition 3 254, 3 293
● Engine oil level and fluid levels 3 230.
● All windows, mirrors, exterior lighting and number plates are
free from dirt, snow and ice and
are operational.
● Proper position of mirrors, seats, and seat belts 3 39, 3 47,
3 57.
● Brake function at low speed, particularly if the brakes are wet.