Chevrolet Silverado LD and 2500HD/3500HD Warning Lights: What They Mean

Red: stop or act now

Brake System Warning Light

Possible brake problem if it stays on after the parking brake is fully released or comes on while driving; also lights when parking brake is set.
What to do: Pull off the road and stop carefully. If the light is still on, have the vehicle towed for service. PDF page 150

Amber: check soon

Lane Keep Assist (LKA) Light (1500 Series)

Amber means LKA is assisting by steering; flashing amber is a lane departure alert that a lane marking was crossed. Green means LKA is available. PDF page 152

Vehicle Ahead Indicator

Amber means you are following a vehicle ahead much too closely. Green means a vehicle is detected ahead. PDF page 152

Other warnings and indicators

Antilock Brake System (ABS) Warning Light

Antilock brakes are not working; regular brakes still work. If lit with the brake light too, the regular brakes also 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 150

Charging System Light

If it stays on or comes on while driving, the electrical charging system may have a problem and could drain the battery.
What to do: Have it checked by your dealer. If you must drive a short distance, turn off all accessories. PDF page 147

Malfunction Indicator Lamp

Part of the emission control diagnostic system. If on with the engine running, a malfunction was detected and service may be needed. PDF page 147

Traction Off Light

Traction Control System has been turned off, so wheel spin is not limited. It also lights with the StabiliTrak OFF light when StabiliTrak is off.
What to do: Adjust your driving accordingly. PDF page 152

Low Fuel Warning Light

The fuel tank is low on fuel.
What to do: Add fuel; the light turns off. If it doesn't, have the vehicle serviced. PDF page 154

Security Light

If it stays on and the engine does not start, there could be a problem with the theft-deterrent system. PDF page 154

High-Beam On Light

The high-beam headlamps are in use. PDF page 154

IntelliBeam Light

The IntelliBeam system, if equipped, is enabled. PDF page 154

Front Fog Lamp Light

The fog lamps are on. PDF page 154

Summarized in our own words from the 2019 Chevrolet Silverado LD and 2500HD/3500HD 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.