No one has paid that much for a disabler you plug into your OBD2 port to disable the Stop/Start feature, or the AFM system. You can purchase a disabler from Range Technology for Start/Stop only for $224.00 before tax. However, I talked to Range a few months ago about their Start/Stop and AFM Disablers and they said they had not tested them on these new Blazers, so they can't warranty them.
I purchased a GTMOTOR AFM Disabler from Amazon and have had it for a few months now working perfectly. It runs $115.00 before tax. If anyone spent $500.00 or more for these disablers, then you got ripped off. I don't think these disablers, for either system, work on a 2019. Do your homework before purchasing, but it works as advertised on my 2022.
https://www.amazon.com/gp/slredirect/picassoRedirect.html/ref=pa_sp_atf_aps_sr_pg1_1?ie=UTF8&adId=A081553821KVVHOTB3WE7&qualifier=1677181194&id=259523966594992&widgetName=sp_atf&url=/Active-Management-Disable-Disabler-Vehicle/dp/B07TTRC3MM/ref=sr_1_2_sspa?crid=3QHER1TTWBCVH&keywords=gtmotor+active+fuel+management+disabler+afm+ra003&qid=1677181194&sprefix=gtmotor%2Caps%2C118&sr=8-2-spons&psc=1
I purchased a GTMOTOR AFM Disabler from Amazon and have had it for a few months now working perfectly. It runs $115.00 before tax. If anyone spent $500.00 or more for these disablers, then you got ripped off. I don't think these disablers, for either system, work on a 2019. Do your homework before purchasing, but it works as advertised on my 2022.
https://www.amazon.com/gp/slredirect/picassoRedirect.html/ref=pa_sp_atf_aps_sr_pg1_1?ie=UTF8&adId=A081553821KVVHOTB3WE7&qualifier=1677181194&id=259523966594992&widgetName=sp_atf&url=/Active-Management-Disable-Disabler-Vehicle/dp/B07TTRC3MM/ref=sr_1_2_sspa?crid=3QHER1TTWBCVH&keywords=gtmotor+active+fuel+management+disabler+afm+ra003&qid=1677181194&sprefix=gtmotor%2Caps%2C118&sr=8-2-spons&psc=1