Cadillac Dashboard Warning Light Guide: What Does Each Light Mean?

Some dashboard warnings should never be ignored. These alerts often involve systems that affect vehicle safety, engine health, or overall drivability.

• Brake System Warning Light: The Brake System Warning Light can indicate low brake fluid, worn brake components, or another issue affecting braking performance. Because your braking system directly impacts your ability to stop safely, you should have this warning inspected as soon as possible.
• Engine Oil Pressure Warning Light: The Engine Oil Pressure Warning means the engine may not be receiving proper lubrication. Oil helps reduce friction between moving components. If oil pressure drops too low, engine damage can occur quickly. If this warning appears, pull over safely and turn off the engine.
• Battery Charging System Warning Light: The Battery Charging alert indicates that your Cadillac's charging system may not be functioning correctly. The issue could involve the battery, alternator, or electrical system. If left unresolved, the vehicle may eventually lose power.
• Engine Coolant Temperature Warning Light: The Engine Coolant Temperature warning appears when the engine is running hotter than normal. Continuing to drive with an overheating engine can cause serious damage. Pull over when it is safe and allow the vehicle to cool before seeking assistance.
• Airbag Warning Light: The airbag warning light indicates a potential issue with the supplemental restraint system. If this light remains illuminated, your airbags may not function properly during a collision and should be inspected by a technician.

Paying attention to these warning lights can help protect both your vehicle and everyone inside it. Quick action can often prevent a small concern from becoming a larger repair.

Not every dashboard light requires you to stop immediately. Many indicators simply let you know that a system needs attention or that a feature is currently active.

• Check Engine Light indicates a potential engine, sensor, or emissions system concern that should be diagnosed.
• The Tire Pressure Monitoring System Light warns that one or more tires may be below the recommended pressure level.
• ABS Warning Light signals a concern involving the Anti-Lock Braking System.
• Traction Control Light may illuminate when the system is actively helping maintain traction or if the system requires service.
• StabiliTrak® Warning Light can indicate reduced stability control functionality that should be inspected.
• Security System Light may appear if the theft deterrent system detects a concern.
• Door Ajar Light alerts you when a door, trunk, or liftgate may not be fully closed.
• The Low Fuel Light reminds you that your fuel level is low and that you should refuel soon.
• Seat Belt Reminder encourages occupants to buckle up before driving.
• The Washer Fluid Warning Light indicates that the windshield washer fluid level is low.
• Lane Keep Assist Indicator shows when the system is active and helping monitor lane positioning.
• Forward Collision Alert Indicator notifies you when the system detects a potential collision risk ahead.

These indicators work together to keep you informed about your Cadillac's condition and driver assistance features. Taking a moment to understand them can help you respond appropriately when they appear.

When a dashboard warning light remains illuminated, professional diagnostics can help identify the cause. Modern Cadillac vehicles use advanced onboard systems that monitor everything from engine performance to safety technologies. Specialized diagnostic equipment allows technicians to communicate directly with those systems and pinpoint concerns accurately.

Whether your vehicle needs battery testing, brake service, tire inspections, cooling system repairs, or Check Engine Light diagnostics, factory-trained technicians can help determine the proper solution. Routine maintenance and inspections can also help identify potential concerns before they trigger a dashboard warning.

Did you know? Cadillac's Driver Information Center is designed to provide real-time vehicle status updates, maintenance reminders, and warning messages to help drivers stay informed about vehicle health and operating conditions*. These alerts can help identify concerns early and support timely maintenance decisions.