GMC Dashboard Symbols: What Each Light Means and When to Get Service

A new light pops up on the dash along Highway 17, and the first thought is, “Is this serious?” At Bell & Bell GMC in Little River, SC, our service team hears “What do the lights on my dashboard mean?” all the time. Here’s a guide to what each light means and when to get service.

Key Takeaways

• ✓Red lights signal a potentially serious problem. Pull over safely.
• ✓Amber or yellow lights mean a system needs attention soon.
• ✓Green, blue, and white lights typically show a feature is on or active.
• ✓A flashing check engine light is more urgent than a solid one.
• ✓Driver assistance indicators vary by model, trim, and model year.

What Do the Colors on GMC Dashboard Lights Mean?

Color tells you urgency. Red means act now, amber means schedule service soon, and green, blue, or white means a system is on. Flashing usually adds urgency or shows a system is working.

This quick chart shows how to read GMC dashboard lights at a glance:

Which Red GMC Warning Lights Need Immediate Attention?

These can indicate problems that may damage the engine or impair braking. Stop somewhere safe before driving further.

Oil Pressure / Oil Level Warning

A red oil can indicates low oil pressure, which can quickly damage the engine. Shut the engine off and check the oil level. If the light stays on, don’t keep driving.

Coolant Temperature Warning

The engine is running hot. Turn it off and let it cool. Never open a hot coolant cap.

Battery / Charging System Light

This points to a charging problem, like a failing alternator or battery. Turn off accessories and head to service, since the vehicle may stall.

Brake System Warning Light

If it stays on after releasing the parking brake, fluid may be low, or there’s a brake system issue. Have it checked before driving further.

Which Amber GMC Dashboard Symbols Mean It’s Time for Service?

You can usually keep driving carefully, but don’t put off service.

Check Engine Light

Solid means the engine computer detected an issue, from a loose gas cap to a sensor fault. Flashing often signals a misfire that can damage the catalytic converter, so reduce speed and get service right away.

ABS Warning Light

Regular brakes still work, but antilock braking may not. If the ABS and brake lights appear together, stop safely.

Tire Pressure Monitoring System (TPMS) Light

Solid means a tire is low, so check pressures against the driver’s door-jamb label. Flashing for about a minute, then staying on, means the system needs service.

Low Fuel Light

Refuel soon. Running dry can strain the fuel pump.

Traction or Stability Control Light

Flashing means StabiliTrak or traction control is actively working on slick pavement. Solid can mean the system is off or needs service.

What Do GMC Driver Assistance Indicators Mean?

These GMC dashboard symbols and meanings cover available safety features, so not every GMC shows them.

Automatic Emergency Braking (AEB) Disabled Light

AEB is off or unavailable, often due to a camera or sensor being blocked by dirt or heavy rain. If cleaning doesn’t help, have it checked.

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

A pedestrian has been detected ahead. Stay alert and be ready to brake.

Super Cruise Light

The steering wheel light bar shows status. Solid green means hands-free driving is active; blue means hands-on steering is required; a flashing green means watch the road; and a flashing red means take control immediately.

Driver Attention Assist Light

The system detected signs of drowsiness or distraction. Refocus or take a break.

When in Doubt, Have It Checked

Knowing your GMC dashboard lights takes the guesswork out of a surprise warning. Red means stop, amber means schedule service, and flashing deserves extra attention. Bell & Bell GMC in Little River is here to help drivers across the Grand Strand and Myrtle Beach, SC.

Got a light that won’t go away? Schedule a service appointment online or call our service department, and our technicians will diagnose the issue.

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