I did a KAM reset to fix mine. This needs to be done with a tool, not a battery disconnect. I used an Autophix 7150. There should be several devices that will do this.
I started on installing mine today. Only got as far as removing the drivers side when I realized I didn't have any red loctite. I will finish up tomorrow. I used the Full Tilt bearing removal tool and a 2 ft breaker bar. The bearing came out with no problem.
Ok, I got it now. So for the 2021 handling package it includes the 6 piston Brembo brakes? My 2020 came with the GT brakes (352x32, 46 rotors). I didn't know they changed for 21.
I also have the Track Apps...
I don't know about muting all the chimes but I changed to the the internal speaker. This was on a 2020.
IPC Module 720-01-01
Default = xxxx xxx4 xxxx
To internal = xxxx xxx0 xxxx
My car had the same symptoms. At 6000 miles I installed the Steeda IRS Subframe Bushing support system and the thump stopped. I had also previously installed the Steeda IRS support brace which did not stop the thump. The rubber IRS bushings were ok.
That slot is unused on my car. It is switched on with the ign switch. I don't remember where I purchased the tap. There is a spot on the fuse where you can test for current with a volt meter.
This is without the Handling Package.
2020
2.3L High Performance Package
• 3.55 Limited-slip Rear-Axle
• 19" X 9” Machined-face Aluminum with Low Gloss Ebony
painted pockets Wheel
• 255/40R19 Summer Only Tires2
• Active Valve Performance Exhaust
• Black Painted Strut-Tower Brace
• “Engine Spun”...