Corvette: Warning Lights

Warning lights on the dashboard are simply shortcuts that inform the driver of problems with their Corvette. Knowing what these symbols mean will help to quickly determine whether or not the vehicle is in dire shape.

By Bassem Girgis - February 9, 2015

This article applies to the C5, C6, and C7 Corvette (1997-current).

The Corvette is a very technologically advanced vehicle. But the more components a car has, the more potential there is for things to go wrong. The Corvette is equipped with an advanced computer that can read the issues the car is experiencing and warn the driver through lights on the dashboard. For the most part, a warning light that is displayed in red indicates a more serious problem or safety issue, and it is recommended to get it checked the same day. A warning light that is displayed in orange or yellow means something needs to be serviced or repaired soon. A green or blue warning light is for information only and presents no danger. If there is a flashing warning light of some sort, it is recommended to contact the dealership immediately. Otherwise, you can attempt to diagnose the issue with an OBD scanner tool. Read on to learn about the various types of warning lights in the Corvette.

OBD Reader Diagnosis

Every Corvette vehicle is equipped with a connector that a troubleshooting scanner can be connected to. Simply connect the OBD scanner tool or a computer with scanner software downloaded to it. The scanner will show you diagnostic trouble codes (DTCs) that the car has stored. A high quality scanner will tell you what those codes mean. If it doesn't, searching Corvetteforum.com or Google will provide some leads. Otherwise, you could just take your Corvette to the dealership.

Scanner programs and tools vary in price. An app can be purchased for $4.95, and a nice one runs for $200+.

Figure 1. The connector is located on the left, lower side of the dashboard.

Types of Warning Lights

Below are some of the more important warning lights that you need to know. There are several more warning lights, but they are usually self-explanatory. In general, it's best to always check the messages on the dashboard. The advanced computer system on the Corvette will usually tell you exactly what you need to do. It is recommended to contact your dealer when a serious warning light comes on, and drive as little as possible during that time.

Brake Light

The "Brake" symbol serves two purposes. It will come on to indicate that the emergency brake is engaged. If it comes on while the emergency brake is not engaged, it's indicating that there's a problem with the vehicle's braking system. Always make sure the emergency brake is released before driving; if it is yet the symbol appears, bring the vehicle to a complete stop and contact your dealer.

Figure 2. Brake warning light.

Coolant Light

This is the temperature warning light. It indicates that the engine's temperature is higher than it should be. If you see the same exact symbol, only in blue instead of red, it indicates that the coolant level is below what it needs to be. Your vehicle isn't in any real danger, but it likely has a coolant leak.

Figure 3. Coolant warning light.

Engine Oil Light

This is the oil pressure engine light. If you have a wavy line underneath the oil can, it means the engine oil is low. Stop the vehicle, turn it off and check your oil. You never want to drive with low engine oil. If there is a warning in yellow that says "OIL LEVEL," this is a reminder to get the car serviced.

Figure 4. Engine oil warning light.

Charging System Light

In most cases, a battery sign will mean you either have a bad battery, or you have a bad alternator. AutoZone offers a free diagnosis. A battery with low-charge will register a DTC, so they'll be able to see what's wrong with their OBD2 scanners.

Figure 5. Charging system warning light.

Master Warning Light

This light is usually accompanied by text; look for the text on the dashboard. It is usually associated with simple but important reminders such as a door ajar or that it is time to replace the oil.

Figure 6. Master warning light.

SRS Air Bag Light

This warning light indicates that one of the many air bags the Corvette is equipped with has stopped working. Take the vehicle to the dealership as soon as possible.

Figure 7. SRS air bag warning light.

Transmission Oil Temperature Light

The transmission oil symbol means the oil temperature in the transmission is too high. If it's not taken care of right away, there could be risk of transmission failure. A Corvette transmission is worth thousands of dollars, so it is best to contact the dealer immediately.

Figure 8. Transmission oil warning light.

Power Steering Light

This is the power steering warning light, which indicates either lower power steering fluid or a bigger issue in the power steering system. Check the power steering fluid level; if it's full, contact your dealer.

Figure 9. Power steering warning light.

Check Engine Light

The possible reasons for this light are in the thousands. It could be anything from a loose gas cap to a serious engine problem. It is best to have your dealer properly address the issue.

Figure 10. Check engine warning light.

ABS Light

Anti-lock braking system (ABS) keeps the vehicle from skidding by preventing the wheels from locking under braking. This system is rather complicated, so it is best to contact your dealer immediately. Try not to drive with it on for a long distance.

Figure 11. ABS warning light.

Low Brake Pad Light

This warning light indicates that your brake pads are worn and need replacement. This is a very nice feature to have, rather than having to listen to your brake pads to identify wear. It is best to replace the pads within a hundred miles of the light going on, because worn brake pads could result in bigger problems such as worn brake rotors, and that could get costly.

Figure 12. Brake pad warning light.

Related Discussion