GMC Sierra dashboard warning lights indicators gives you important information about your GMC Sierra vehicle. The warning lights and indicators on the dashboard and center panel inform the driver the status of the vehicle’s various systems. Not all warning lights mean the same thing for different makes and models, but your owner manual will provide information specific to your car. For more information check the Owner Manual.

Here is a list of important warning lights and indicators that may appear on your GMC Sierra dashboard and their respective meanings and responsive actions that you should take in that particular situation.

Meaning of red warning light on GMC Sierra dashboard

Low Oil Pressure Indicator

Engine Oil Level or Oil Pressure Warning Light; indicate that the oil pressure is low. STOP driving immediately and turn the engine off. The engine can be severely damaged if oil pressure is lost. Add oil to the engine to bring the level up.

Charging System Indicator

Charging System Warning Light Symbols, indicates a Charging System problem. The vehicle should be stop as quickly as possible or the vehicle may simply stop running. Roadside assistance will be necessary.

Seat Belt Reminder Indicator

This indicator comes on when you turn the ignition switch to the ON position. It reminds you and your passengers to fasten your seat belts. A beeper also sounds if you have not fastened your seat belt.

Parking Brake and Brake System Indicator

Brake Warning Light, indicate a serious Brake problem, but the light will also be on when the hand, or emergency brake, is engaged.

Automatic Transmission Temperature Indicator

This indicator monitors the temperature of the automatic transmission fluid. It should come on for a few seconds when you turn the ignition switch to the ON position. If it comes on while driving, it means the transmission fluid temperature is too high. Pull to the side of the road when it is safe, shift to Park, and let the engine idle until the indicator goes out. You will also see an ‘‘A/T TEMP HIGH’’ message on the multi-information display.

NOTICE: Continuing to drive with the automatic transmission temperature indicator on may cause serious damage to the transmission.

Supplemental Restraint System Indicator

SRS Air Bag Indicator Symbols, indicate that a problem exists with one of the many airbags in the automobile, which should be taken to the dealer or authorized service center as soon as possible.

Door/Tailgate Open Indicator

This indicator comes on red if any door or the tailgate is not closed tightly. You will also see a corresponding indicator(s) on the multi-information display to indicate which door and/ or the tailgate is not closed tightly.

Meaning of yellow warning light on GMC Sierra dashboard

Engine Malfunction Indicator Lamp

You will also see a ‘‘CHECK EMISSION SYSTEM’’ message on the multi-information display.

The possible reasons for it coming on number in the hundreds and only your dealer or authorized service center can properly address them. However, remember that a loose or missing gas cap will cause the light to come on.

Anti-lock Brake System (ABS) Indicator

This indicator normally comes on for a few seconds when you turn the ignition switch to the ON position, and when the ignition switch is turned to the START position. If this indicator comes on at any other time, there is a problem in the ABS. If this happens, take the vehicle to your dealer to have it checked. With this indicator on, your vehicle still has normal braking ability but no anti-lock function. You will also see a ‘‘CHECK ABS SYSTEM’’ message on the multi-information display.

Low Tire Pressure / TPMS Indicator

Tire Pressure Monitoring System/Flat Tire Monitor warning light; indicate that the inflation on one of the tires is down 25% or more. If you are at high speed, reduce your speed.

Meaning of green warning light on GMC Sierra dashboard

Turn Signal and Hazard Warning Indicator

The left or right turn signal indicator blinks when you signal a lane change or turn. If an indicator does not blink or blinks rapidly, it usually means one of the turn signal bulbs is burned out. Replace the bulb as soon as possible, since other drivers cannot see that you are signaling. When you press the hazard warning button, both turn signal indicators and all turn signals on the outside of the vehicle flash.

Lights On Indicator

This indicator reminds you that the exterior lights are on. This indicator will also come on when the light switch is in AUTO and the lights turn on automatically.

Fog Light Indicator

This indicator comes on when you turn on the fog lights.

High Beam Indicator

This indicator comes on with the high beam headlights

Your car is trying to tell you something! Not all warning lights mean the same thing for different makes and models, but your owner manual will provide information specific to your car. For more information check the Owner Manual.

For other dashboard GMC Sierra warning lights you can read:

Automobile dashboard RED warnings lights symbols.

Automobile dashboard YELLOW or ORANGE warnings lights symbols.

Automobile dashboard GREEN or BLUE warnings lights symbols.

Disclaimer

The content contained in this article is for entertainment and informational purposes only and should not be used in lieu of seeking professional advice from a certified technician or expert mechanic. We encourage you to consult with a certified technician or mechanic if you have specific questions or concerns relating to any of the topics covered herein. Under no circumstances will we be liable for any loss or damage caused by your reliance on any content.