When a dashboard light pops on, it always seems to happen at the worst possible moment. Drivers around Madras know the feeling—you're cruising along, everything's fine, and suddenly a symbol you haven't seen in months (or ever) starts glowing. At GMC of Madras, customers ask about Chevy dashboard lights and GMC dashboard lights almost daily, so this guide breaks down the most common alerts, what they mean, and when it's time to schedule service.
Automatic Emergency Braking (AEB) Disabled Light
If this light comes on, your vehicle's AEB system isn't active. Sometimes it's temporary—like when sensors are blocked by mud or snow—but it can also signal a deeper issue. Since AEB is a major safety feature, it's smart to get it checked if the light stays on.
Super Cruise & Driver Attention Assist
Super Cruise is one of the most advanced hands-free systems on the market. When its indicator turns red or stays on longer than usual, the system may be unavailable due to weather, lane markings, or a sensor issue. If it doesn't reset, a quick diagnostic can clear things up.
The Driver Attention Assist Light appears when the vehicle senses fatigue or inconsistent driving patterns. It's not a mechanical issue, but if it comes on often, it may be worth checking for alignment or sensor calibration.
Forward Collision Alert & Pedestrian Indicators
The Forward Collision Alert Vehicle Ahead Indicator indicates that the system detects a vehicle ahead and is monitoring your distance. If it stays lit constantly or flashes when there's no traffic nearby, the sensors may need cleaning or calibration.
Similarly, the Pedestrian Ahead Indicator uses advanced cameras to detect pedestrians. When this light appears unexpectedly or frequently, it's worth having the system inspected to ensure it's accurately reading the road.
Engine & Oil Alerts
The classic Check Engine Light can mean anything from a loose gas cap to a misfire. If it's steady, schedule service soon. If it's flashing, pull over and call for help—flashing means the engine could be at risk.
An Oil Pressure / Oil Level Warning needs immediate attention. Driving with this light on can cause engine damage, so it's best to stop and check levels or head straight to a service bay.
Critical System Monitors
A Battery / Charging System Light means your battery or alternator isn't charging properly. If it comes on while driving, the vehicle may stall soon. A quick test at the dealership can pinpoint the issue.
When the Coolant Temperature Warning symbol appears, the engine is running hotter than it should. Pull over, let the vehicle cool, and avoid driving until the cause is identified. Overheating can lead to major repairs.
If the Brake System Warning Light stays on, it could mean low brake fluid, worn pads, or a system malfunction. Brakes are too important to ignore—schedule service right away.
Fuel & Stability Controls
The Low Fuel Light is simple but important. If this comes on more often than expected, it may indicate a fuel gauge or sensor issue.
The Traction or Stability Control Light usually flashes when the system is actively working, like on gravel or wet roads. If it stays on, the traction control system may be disabled and should be checked.
When to Get Service
If a light comes on briefly and disappears, it may be a minor sensor hiccup. But if it stays on, flashes, or appears alongside performance changes, it's time to schedule service. Modern Chevy and GMC vehicles are packed with smart technology designed to keep you safe, and those alerts are part of that protection. Whether it's a simple reset or a deeper repair, our team at GMC of Madras is here to help keep your vehicle running confidently on Oregon roads.
Frequently Asked Questions
What should I do if my check engine light starts flashing?
A flashing check engine light means the engine may be misfiring—pull over and seek service immediately.
Why does my traction control light stay on?
The system may be disabled due to a sensor issue or a problem with wheel speed readings.
Is it safe to drive with the AEB Disabled Light on?
The vehicle will still drive, but you won't have automatic emergency braking. It's best to get it checked soon.
What causes the coolant temperature warning?
Low coolant, a failing thermostat, or a cooling system leak can trigger this alert.
Can weather affect dashboard sensors?
Yes—snow, mud, heavy rain, or fog can temporarily block cameras and radar sensors.