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Q: Rear air suspension down since snow GMC

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rear air suspension seems to be down.

My car has 91000 miles.
My car has an automatic transmission.

Hi - your "low suspension" may be a leaky air bag, pressure check valve, bad air pressure sensor, or blown fuse or relay for the air compressor. Weather changes to cold weather causes air contracts (actually shrinks somewhat), but your air suspension system should be compensating for this. I would recommend an air suspension system inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

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