Cadillac CELESTIQ Warning Lights: What They Mean

Amber: check soon

Service All-Wheel Drive Light

The electric All-Wheel Drive System is limited. It turns off when the system works normally. Red means there may be a malfunction.
What to do: If red, see your dealer. PDF page 103

Other warnings and indicators

Airbag Readiness Light

If it stays on after start or comes on while driving, the airbag system may not work properly; airbags might not inflate or could inflate without a crash.
What to do: Have the vehicle serviced right away. PDF page 100

Antilock Brake System (ABS) Warning Light

ABS has detected a problem. Brakes still work, but ABS is not functioning as expected. With the brake warning light too, regular brakes are affected as well.
What to do: See your dealer for service. PDF page 103

Service Electric Parking Brake Light

If it stays on or shows while driving, there is a problem with the electric parking brake, and other safety functions using it may be affected.
What to do: Take the vehicle to a dealer as soon as possible. PDF page 103

Low Tire Pressure Warning Light

One or more tires are significantly under-inflated. Flashing then staying on indicates a TPMS malfunction. It may come on in cool weather and turn off while driving.
What to do: Stop as soon as possible and inflate tires to the pressure on the Tire and Loading Information label. PDF page 320

Passenger Airbag Status Indicator

ON means the front passenger frontal and knee airbags can inflate; OFF means the sensing system turned them off. Both lit, or none, suggests a problem.
What to do: If both or no lights show, see your dealer for service right away. PDF page 100

Green: system on

Adaptive Cruise Control Indicator

White when the system is on, green when active, blue when overridden by the accelerator. PDF page 197

Summarized in our own words from the 2026 Cadillac CELESTIQ owner's manual (AI-assisted; every light name was matched against its cited page 2026-10-18). Your vehicle may not have every light, and other years can differ. A red warning that stays on usually means stop safely and check: your manual has the final word.