Master Warning Light and Attention Indicators

Master Warning Light

These are both Master Warning Light and Attention symbols, in red. If this light is on, there will likely be text displayed as well on the instrument panel, or another warning light. Look for text in particular. It could very well point out something as serious as low oil pressure. However, despite the serious look to the symbol, it is generally associated with simple reminders such as a door ajar or that it is time to change the oil.

• First, are you sure this is your symbol?? If yes, then read on below!
• Otherwise return to our main Picture Symbols page and scan again!

BMW use

Note that BMW now uses this first symbol to indicate a collision may be imminent or that the automatic braking has been initiated. The vehicle may actually spot trouble before it can determine the direction it will be coming from.

Other colors

This same symbol, an exclamation point in a triangle, in yellow/amber has been used by European and Asian vehicle manufacturers in two ways. First, it indicates a fault in the vehicle’s Stability Control System, as well as a slip indicator. Click here for more. The vehicle can be driven with caution, but without the benefit of the advanced electronic control system.

Second, it is used in many cases to indicate that a text warning is available in the vehicle’s Information Display, particularly is the symbol is seen in black and white. It could easily involve a malfunction in any system. A Check Control message will likely require changing screens to discover the root problem.

Related Symbols

And then there are these, which feature a lower case letter “i” in a square. It too is meant to alert the driver to look for a message in the information center, but the message will not involve a serious drivability issue. The manufacturer uses the red triangles for this. It may be seen in yellow/amber or black and white.

Finally, this version with a single triangle plus the exclamation point may be used to indicate a failure of a High Voltage System or Battery in a hybrid or electric vehicle (EV). Click this link for more.

If you’re seeing red, see your dealer or authorized service center as soon as possible.

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The information on this website is provided for information sharing purposes only, and should not be used in lieu of an OEM service manual or factory authorized service procedure. We are not in the auto repair business nor do we publish automotive service manuals. Nothing we include on these pages and posts has been reviewed, approved or authorized by any vehicle manufacturer.

Remember that only proper service and repair procedures will ensure the safe and reliable operation of your car. In addition, proper safety procedures and precautions, such as the use of safety goggles, the right tools and the equipment should be followed at all times to eliminate the possibility of personal injury or improper service which could damage the vehicle or compromise its safety.

Technology is always changing and what is current and accurate today may be literally out-of-date and inaccurate tomorrow. And when it comes to the current state of flux in the auto industry, nothing is more true.

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