Cadillac SRX Warning Lights: What They Mean

Other warnings and indicators

Airbag Readiness Light

If it stays on after starting 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 125

Engine Coolant Temperature Warning Light

The vehicle has overheated. Driving with this light on can damage the engine, possibly not covered by warranty.
What to do: See Engine Overheating section; the light should also come on briefly at start as a check. PDF page 131

Antilock Brake System (ABS) Warning Light

Antilock brakes are not functioning; regular brakes still work if only ABS is lit. If the brake warning light is also on, regular brakes have a problem.
What to do: Stop safely, turn off, restart to reset. If it stays on or returns, have the vehicle serviced. PDF page 129

Electric Parking Brake Light

Comes on when the parking brake is applied. Continued flashing after release or while driving means a problem with the parking brake or another system.
What to do: If it does not come on or remains flashing, see your dealer. PDF page 129

Service Electric Parking Brake Light

Staying on means a problem is making the parking brake system work at a reduced level. The vehicle can still be driven.
What to do: Take the vehicle to a dealer as soon as possible. PDF page 129

Traction Control System (TCS)/StabiliTrak® Light

On steady: TCS and possibly StabiliTrak are disabled. Flashing: the systems are actively working.
What to do: Check DIC messages to see which feature is not functioning and whether service is needed. PDF page 131

Security Light

If it stays on and the engine does not start, there could be a problem with the theft-deterrent system.
What to do: See Immobilizer Operation section. PDF page 133

Low Fuel Warning Light

Comes on when the fuel tank is low on fuel; also lights briefly at ignition as a check.
What to do: Add fuel. If the light stays on afterward, have the vehicle serviced. PDF page 133

Traction Off Light

Traction Control System has been turned off. With StabiliTrak off, this light and the StabiliTrak OFF light both come on. Wheel spin is not limited.
What to do: Adjust driving accordingly. PDF page 130

StabiliTrak® OFF Light

StabiliTrak is turned off, which also turns off TCS, so the system does not assist in controlling the vehicle.
What to do: Turn on TCS and StabiliTrak to turn the light off. PDF page 131

Passenger Airbag Status Indicator

ON means the front passenger airbag may inflate; OFF means the passenger sensing system turned it off. Both lit or none lit suggests a problem.
What to do: If both or no lights stay on after several seconds, see your dealer. PDF page 125

High-Beam On Light

The high-beam headlamps are in use. PDF page 133

Fuel Economy Light

Comes on when the eco button is pressed, showing fuel economy mode is active.
What to do: Press the button again to turn off the light and exit the mode. PDF page 133

Green: system on

Lane Departure Warning (LDW) Light

Green means LDW is on and ready. It turns amber and flashes when a lane marking is crossed without a turn signal. PDF page 130

Vehicle Ahead Indicator

Green when a vehicle is detected ahead; amber when you are following a vehicle much too closely. PDF page 130

Summarized in our own words from the 2016 Cadillac SRX 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.