RAM 1500 Owner's Manual page 825

To check the coolant level:
1. Open the coolant reservoir.
Opening The Coolant Reservoir
2. Lift and remove the plastic dipstick from the reservoir
neck.
MAINTAINING YOUR VEHICLE 823
Coolant Reservoir Dipstick
3. Check the coolant level on the dipstick.
The radiator normally remains completely full, so there is
no need to remove the radiator cap unless checking for
engine coolant (antifreeze) freeze point or replacing en-
gine coolant (antifreeze). Advise your service attendant
7