Cadillac ELR Warning Lights: What They Mean

Other warnings and indicators

Brake System Warning Light

A brake problem exists; if it stays on, the brake system might not be working properly, and driving this way can cause a crash.
What to do: Have the brake system inspected right away; if still on after stopping safely off the road, have the vehicle towed for service. PDF page 116

Antilock Brake System (ABS) Warning Light

The antilock brakes are not functioning. With the brake warning light also on, the regular brakes have a problem too.
What to do: Stop safely, turn off the vehicle, restart to reset. If the light stays on or returns, have the vehicle serviced by your dealer. PDF page 117

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 the light does not come on or keeps flashing, see your dealer. PDF page 116

Service Electric Parking Brake Light

A vehicle system problem is making the parking brake work at a reduced level, though the vehicle can still be driven.
What to do: Take the vehicle to a dealer as soon as possible. PDF page 116

Low Tire Pressure Warning Light

One or more tires are significantly under-inflated. If it flashes then stays on, the TPMS has a malfunction.
What to do: Stop as soon as possible and inflate the tires to the pressure shown on the Tire and Loading Information label. PDF page 282

Passenger Airbag Status Indicator

ON means the front passenger frontal and knee airbags may inflate; OFF means the passenger sensing system has turned them off.
What to do: If both lights stay on or neither lights after several seconds, see your dealer for service. PDF page 113

Traction Control System (TCS)/StabiliTrak Light

On steady: TCS and possibly StabiliTrak are disabled. Flashing: the TCS and/or StabiliTrak system is actively working.
What to do: Check the DIC messages to see which feature is not functioning and whether the vehicle needs service. PDF page 118

Traction Off Light

The Traction Control System has been turned off. It also comes on with the StabiliTrak OFF light when StabiliTrak is off.
What to do: Wheel spin is not limited, so adjust driving accordingly. PDF page 118

StabiliTrak OFF Light

StabiliTrak is turned off, which also turns TCS off, so the system does not assist in controlling the vehicle.
What to do: Turn the TCS and StabiliTrak systems back on to turn the light off. PDF page 118

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 117

Vehicle Ahead Indicator

Green shows a vehicle is detected ahead; amber shows you are following a vehicle ahead much too closely. PDF page 117

Summarized in our own words from the 2016 Cadillac ELR 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.