I've also received msg from Toyota airport motors for fuel pump replacement for my 1.6, march, 2019. Talked to the service guy who told that fault outcome is overheating of fuel pump and subsequent sudden stoppage of car or not able to start.
The weird thing is, before the msg, i had been asking indus motors through their sms service regarding the call back campaign on fuel pump. They simply denied that no such campaign currently running. Once i got the msg from dealership i fwd it to them asking why were they so ignorant about it. As a response started asking dumb questions like from which number u got the msg etc. Afterwards told me to wait while they will confirm it. Let's see when they reply