It's hard to believe that there is no oil pressure warning. The manual for my '07 indicates that that the symbol for an oil can appears as an oil warning. The manual text says:
Warning light for engine-oil pressure flashes.
The oil pressure in the lube-oil system is too low. Stop immediately and switch off the engine.
The warning icon looks like this, and should appear before the engine is running when you turn the ignition on:
Warning light for engine-oil pressure flashes.
The oil pressure in the lube-oil system is too low. Stop immediately and switch off the engine.
The warning icon looks like this, and should appear before the engine is running when you turn the ignition on: