Some AirPods Pro devices made before October 2020 are known to have some quality issues.
Recently Apple has updated the policy for how long devices will be covered if they face these issues. The issues include:
Apple says the process for repairing affected devices requires having the AirPods Pro examined prior to replacement. It is possible for this to take place by:
AirPods Pro were originally released in 2019 and the repair program was introduced in October 2020. Now affected devices are covered for 3 years after the first retail sale of the device. This would mean even AirPods Pro purchased at launch will now be covered until October 2022.