[adamsrotors]

let me start by saying this is my 4th L322 doing these same EXACT mods, 3 of which never having issue, so I'm confused.

new wheels, 265/70/18 tires, and Johnson rods went on…

2012 RR HSE
1. HDC not available, system fault
2. emergency brake assist not available
3. stability control not available
...and the traction control lights, triangle exclamation, and air bag light all stay on.

everything resets when the car is parked and then turned off and then on. car runs fine.
there is a bit of a shake at freeway speed I need to address with an alignment, but I assume just the new A/T tires.

seems to trigger only on after about 10-15 minutes, usually on the freeway.

let me know, thanks!

 

[Rovah]

Start by getting the alignment corrected first.

 

[anvilrob]

Are you certain that the height sensor arms all point towards the "outside" on their respective side(s) of the vehicle?

ie left sensor arms point to the left side of the vehicle, right to the right.

Rob

 

[adamsrotors]

^ maybe not...I'll check. so that's the fronts, right? the rears I recall, were just straight.

 

[adamsrotors]

alignment fixed nothing. any other tips/ideas?

 

[datafoo]

You should scan your system for fault codes. Without those everyone is speculating as to the how or why.