Answer:
Please find the detailed explanation below.
Situation 1 and 2 have disclosure while situation 3 does not require any disclosure.
Explanation:
Situation 1. Accrual. The one-year warranty has created what is known as contingent liability. Contingent liability is a type of liability that is dependent on the outcome of some specific actions which has happened in the past. The eventual liability may or may not happen. But since the probable claim from the one-year warranty has been determined, it should be disclosed. But if the claim cannot be determined, it shouldn't be disclosed.
Situation 2. Since this contract happened before the issuance of financial statement and the amount of loss from this contract can be reasonably estimated or determined, then it must be disclosed and the likely amount must also be disclosed. This disclosure will be under 'note to the financial statement'.
Situation 3. This is a self insurance and self insurance is not an insurance. There is no contingent liability in this situation. Also, there is no accident, no injury. Hence, this is no disclosure here.