Do not force or drill the lock as a routine appliance check. Damage can affect the lid, seal or nearby fittings and create a separate repair.
What the observation tells you
A lock issue is different from a lid held by pressure after closure. The model and lock information help identify the correct support route. Do not let uncertainty delay a food-storage plan if the contents cannot be accessed safely.
A useful next step
Contact the manufacturer or a suitable professional about the lock. Keep proof of ownership available where required. Avoid wedging the seal or using sharp tools to gain access.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.