A new light pops up on your instrument cluster. Is it serious, or can it wait? At Buick GMC of Brandywine, our team helps Brandywine drivers decode dashboard lights and car dashboard symbols every day. Here’s what each light means, what color and flashing tell you, and when to get service.
Key Takeaways
- Red lights usually signal a problem needing immediate attention, like low oil pressure or overheating.
- Amber lights typically mean a system needs service soon or is turned off.
- Green and blue lights generally confirm a feature is active.
- Flashing lights are often more urgent than solid ones.
- Your owner’s manual shows the exact car symbols for your GMC.
What Do Dashboard Light Colors Mean?
Color is your quickest clue. Think traffic signal: red means stop and check, amber means schedule service, and green or blue means a system is working.
Solid or flashing matters too. A solid light usually indicates a condition, while a flashing light often means a system is actively working or that a fault needs quick attention. This table makes car light meaning easy to read at a glance.
| Color | What It Usually Means | What to Do |
|---|---|---|
| Red | Serious issue or safety warning | Stop safely and check it |
| Amber/Yellow | Service needed or a system is off | Schedule service soon |
| Green | A feature is on and active | No action needed |
| Blue | Feature active in a specific mode | No action needed |
What Does Each GMC Dashboard Light Mean?
Here are common GMC dashboard symbols and meanings. Availability varies by model, trim, and model year.
Automatic Emergency Braking (AEB) Disabled Light
Amber, solid. AEB is off or unavailable, often because the front camera or sensors are blocked by dirt, snow, or ice. If cleaning doesn’t clear it, schedule service.
Forward Collision Alert Vehicle Ahead Indicator
Green means a vehicle is detected ahead. Amber means you’re following too closely. Flashing red with beeps or seat pulses means brake now.
Pedestrian Ahead Indicator
Amber, solid, when a pedestrian is detected ahead. If a collision appears imminent, a flashing red alert and warning sounds follow.
Super Cruise Light
The steering wheel light bar shows solid green during hands-free driving and solid blue while you steer. Flashing green means watch the road; flashing red means take control now.
Driver Attention Assist Light
Typically amber. It appears when the system detects drowsiness or distraction, signaling it’s time for a break.
Check Engine Light
Amber. Solid means a stored fault, like a loose gas cap; schedule service soon. Flashing often signals a misfire that can damage the catalytic converter. Get service right away.
Oil Pressure / Oil Level Warning
Red, solid. Low oil pressure can quickly damage the engine. Pull over, shut it off, and check the oil.
Battery / Charging System Light
Red, solid. The battery may not be charging properly, often from an alternator or battery problem. Get service promptly.
Coolant Temperature Warning
Red, solid. The engine is overheating. Pull over and let it cool. Never open a hot coolant cap.
Brake System Warning Light
Red, solid. The parking brake is set, or brake fluid may be low. If it stays on after releasing the brake, have it inspected before driving.
ABS Warning Light
Amber, solid. Anti-lock braking has a fault, though regular brakes should still work. Schedule service soon, and stop driving if the red brake light also appears.
Tire Pressure Monitoring System (TPMS) Light
Amber. Solid means a tire is low; fill to the door jamb label pressure. Flashing about a minute, then staying solid, means a system fault.
Low Fuel Light
Amber, solid. Fuel is low, so refuel soon.
Traction or Stability Control Light
Amber. Flashing means StabiliTrak or traction control is actively maintaining grip. Solid usually means the system is off or has a fault worth checking.
When Should You Get Service for a Dashboard Warning Light?
Get service right away for any red light or a flashing Check Engine light. Amber lights that stay on after a restart should be checked within a few days.
You don’t need to memorize every car warning light. Snap a photo and note whether it’s solid or flashing. Technicians can read stored diagnostic codes to pinpoint the cause. Several car dash symbols at once may point to an electrical issue.
Read Your Dashboard Lights With Confidence
Knowing the dashboard light meanings helps you drive smarter. Red means act now, amber means plan for service, and green or blue means all’s well. If a light has you wondering, Buick GMC of Brandywine is here to help.
Have a warning light that won’t go away? Contact our service department or schedule online, and our team will diagnose the issue.
FAQ
Can I drive with the Check Engine light on?
If it’s solid and your GMC drives normally, usually yes, but get to a service appointment soon. If it’s flashing, get service right away.
Why does my TPMS light come on in cold weather?
Tire pressure drops as temperatures fall. Inflate your tires to the recommended pressure.
Why is a dashboard light flashing instead of solid?
With most car light symbols, a flashing light means a system is actively working, or a problem needs faster attention.
Do all GMC models share the same car dashboard symbols and meanings?
Core warning lights are largely shared, but car dashboard symbols and meanings for features like Super Cruise vary by model and year.