It marks the second recall announcement in one day for Subaru's new-generation large SUV, following a recall notice pertaining to the model's electronic brake booster appearing on the ACCC website only hours prior.
According to Subaru Australia, this latest fault means the car's "stereo camera may mis-recognise roadside objects and/or miscalculate the travelling direction of an oncoming vehicle, unexpectedly activating pre-collision braking".
"The likelihood of these symptoms occurring is low," Subaru Australia said in a statement.
The recall was lodged with the Australian Competition and Consumer Commission (ACCC) a short time ago, but is yet to appear on the government agency's site.
The issue is the same one that caused Subaru's factory in Japan to issue an urgent "stop delivery" notice on all model-year 2021 Outback cars a week prior.
The rectification procedure for this recall requires the vehicles' pre-collision braking system software to be updated, a process which takes around two hours.
Potentially affected customers will be contacted by Subaru Australia to advise them of the recall and all rectification work will be conducted free of charge by an authorised Subaru dealer.
Customers are also able to contact the Subaru Customer Service Centre on 1300 550 994 with any queries.
This recall, and the related stop-delivery notice, is distinct from the other 2021 Outback recall pertaining to the car's electronic brake booster.
However, a Subaru Australia spokesperson advised CarAdvice that a large proportion of the vehicles affected by the brake booster issue had already been rectified.