* Air Suspension System Integrity: Air suspension systems rely on a precise balance of air pressure within the air struts/springs to maintain ride height and stability. Jacking up the car alters this balance dramatically.
* Trunk Switch Function: The trunk switch, depending on the vehicle, might be directly or indirectly tied into the air suspension system's control module. If the system is actively trying to maintain ride height (because the switch is on) while the car is being physically lifted by a jack, this creates a conflict. The system will fight against the jack, potentially causing:
* Over-pressurization: The air compressor may continue pumping air into the struts, exceeding their pressure limits and causing damage to the air springs, compressor, or other system components.
* Air Leaks: The forced pressure differential might stress seals and connections within the system, potentially leading to air leaks.
* Compressor Overload: Continuous operation against the jack's resistance can overheat and damage the air compressor.
* Control Module Errors: The conflicting signals might lead to error codes or malfunction in the air suspension control module.
In short: It's best practice to always turn off the car completely, including any air suspension-related settings or switches, before jacking it up. This prevents the potential for costly damage.
