It can't be bypassed simply because it is attached directly to the radiator. What I would suggest is to remove the thermostat when performing the procedure. Once you finish and everything is finished, reinstall the thermostat.
Here are directions for removal and replacement. The attached pics correlate with the directions.
2015 Chevrolet Cruze L4-1.8L
Engine Coolant Thermostat Replacement
Vehicle Engine, Cooling and Exhaust Cooling System Thermostat Service and Repair Removal and Replacement Engine Coolant Thermostat Replacement
ENGINE COOLANT THERMOSTAT REPLACEMENT
Document ID: 3755076
Engine Coolant Thermostat Housing Replacement Remove
Note, coolant must be drained to a level below the thermostat. Otherwise, it will leak from that point.
Bolt (1) total 4 Remove
Remove the thermostat. (2)
Engine Coolant Thermostat Gasket (3) Remove and DISCARD
Install a NEW gasket. (3)
Install the thermostat. (2)
Engine Coolant Thermostat Housing Replacement Install
Let me know if this helps or if you have other questions.
Images (Click to enlarge)
Monday, October 26th, 2020 AT 1:14 PM