Adjusting Northland Freezer Thermostat lower

Please make sure to click on General above and select the correct appliance type first.

Brand: Northland
Model Number: 48SS-SGX (frzr thermostat)
Main Symptom: How to adjust colder
What happens & when:

Error Code (if any):
Parts or tests already tried:
Photos / video link:

Unfortunately, I am not able to find any information for this model number. However, if there is not a thermostat in the fresh food section, there should be a thermostat in the freezer section to adjust the temperature.