Air Suspension Warning
A fault in the air suspension — the car may sit low, ride harshly, or be stuck at one height.
What it means
Vehicles with air springs report compressor, valve-block, height-sensor, or air-leak faults here. A classic sign is one corner sagging overnight. Driving far on a deflated air spring can damage it and the bump stops.
Can you keep driving?
Usually yes at moderate speed if ride height looks normal — get it diagnosed soon. If a corner is visibly down or the car bottoms out, drive only slowly to a shop.
What to do now
- 1
Look at ride height on level ground after the car sits overnight — a sagging corner confirms a leak.
- 2
Avoid towing and full loads until repaired.
- 3
Get a specialist diagnosis; coil-spring conversion kits are a legitimate budget fix on older vehicles.
Likely causes
- • Leaking air spring (most common with age)
- • Failed compressor or relay
- • Leaking valve block or air line
- • Faulty height sensor
Typical fix cost
$400–$1,000 per air spring; $400–$900 for a compressor; conversions to coil springs $800–$1,500
Ranges reflect mainstream US parts-and-labor pricing; your vehicle and region will vary.