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Does swapping the 12v battery reset ride height?

Fleer

Member
May 19, 2019
149
154
Boise, ID
Tesla is coming tomorrow to swap out my dying 12v battery. I have lowering links on my car with air suspension. Does anyone know if swapping the 12v resets ride height?
 

Merle

Member
Apr 5, 2019
156
126
Tahoe
My hard won experience playing with automatic ride sensors would make it clear that the answer is no. There are a series of sensors attached to links at the four wheel locations. These sensors send a signal to the onboard system which inflates (or cuts out) the air compressor at the correct height.

So even if your car was disconnected, and the air totally drained (due to a suspension replacement) when the power was connected, the ride height would be "read" and the increase (or decrease) would occur.

Adjustment is typically through a few nuts threaded onto a bolt to increase or decrease the shaft height which triggers the sensor. If you want to increase (or decrease) automatic ride height, you can do so by adjusting the nuts, maybe +/- 1" as we'd do this with other vehicles (most notably trucks) to give a bit more wheel clearance.
 
  • Informative
Reactions: Silicon Desert

krsgio

Member
Nov 8, 2018
369
348
Colorado
My hard won experience playing with automatic ride sensors would make it clear that the answer is no. There are a series of sensors attached to links at the four wheel locations. These sensors send a signal to the onboard system which inflates (or cuts out) the air compressor at the correct height.

So even if your car was disconnected, and the air totally drained (due to a suspension replacement) when the power was connected, the ride height would be "read" and the increase (or decrease) would occur.

Adjustment is typically through a few nuts threaded onto a bolt to increase or decrease the shaft height which triggers the sensor. If you want to increase (or decrease) automatic ride height, you can do so by adjusting the nuts, maybe +/- 1" as we'd do this with other vehicles (most notably trucks) to give a bit more wheel clearance.
Most of us are aware around the mechanics how it works but I think the OP is just paranoid that the settings aren't recalibrated. There's been instances where Tesla has recalibrated the ride high with lowering links installed and it alters the existing suspension configuration/height which usually only happens when the car is in for service related to suspension or alignments.
 

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