GMC Savana Warning Lights: What They Mean

Red: stop or act now

Brake System Warning Light

Parking brake is set or not fully released, brake fluid may be low, or a brake system problem exists. Pedal may feel harder or go lower.
What to do: If it stays on after the parking brake is released, have brakes inspected. If it shows while driving, stop carefully; if still on, have the vehicle towed. PDF page 80

Amber: check soon

Lane Departure Warning (LDW) Light

Flashing amber means the lane marking was crossed without a turn signal. Green means LDW is on and ready. PDF page 80

Other warnings and indicators

Antilock Brake System (ABS) Warning Light

ABS has detected a problem. Regular brakes still work, but ABS is not functioning as expected. With the brake light also on, regular brakes are affected too.
What to do: See your dealer for service. PDF page 80

Low Tire Pressure Warning Light

One or more tires are low on pressure. Flashing then steady light means the TPMS is malfunctioning and may not detect low pressure.
What to do: Stop as soon as possible and inflate tires to the pressure on the Tire and Loading Information label. PDF page 195

Tow/Haul Mode Light

Tow/Haul mode has been activated. PDF page 80

Green: system on

Vehicle Ahead Indicator

Green shows a vehicle is detected ahead; amber means you are following a vehicle too closely. PDF page 80

Summarized in our own words from the 2026 GMC Savana 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.