Auto Headlamps
These are the Automatic Headlight Dimmer indicator symbols. The system is also known as the High Beam Assistant. Shown in the traditional blue of the high beam indicator or in green, the symbols indicates that the high beams are on and that the system will automatically (AUTO or A) switch between the low and high headlight beams on the automobile depending on whether or not sensors detect oncoming vehicle head lights in the distance.
- But first, is one of these truly your symbol?? If yes, continue below.
- Otherwise return to our main Picture Symbols page and scan again!
The letter A may or may not be seen inside the drawing representing a lamp. The lines pointing out represent light. And believe it or not, similar systems have been available in some form on high-end vehicles since the 1950s!
More Versions
One manufacturer has chosen to combine the auto high beam indicator with the park light indicator. With the auto high beam system on, the symbol is seen in blue and green. With the high beam system off, the light is shown in white. The park lights are on in either instance.
This version, in gray scale or black and white, indicates that the high beams have been turned off because a light has been detected in front of the vehicle. The high beams will reactivate when the light is no longer detected. The starker black and white indicates the system is on and working.
Frustratingly, this version, also in black and white, means exactly the opposite — it means that the automated system is on and ready for use! This means that you’ll need to consult your car’s manual to be sure what the light actually means.
These versions are Automatic Headlamp Dimmer Malfunction indicator symbols. They are displayed in yellow/amber/orange. The letter A, for Automatic, sits inside two of the headlamps and an exclamation point is added to the side in one. The other has the word AUTO inside and the color alone is used to indicate a problem. The headlights themselves will continue to function in high or low beam, but they will need to be cycled manually.
Finally, there is this one from Audi which for some reason they use as an Automatic Wiper Fault Indicator as well. This looks like a hat or a lid open on one side with beams coming out of it to an oval shape in yellow/amber.
All these indicators use the shape of an old style headlamp with lines pointing outward, which are meant to be beams of light. There are others that use these elements, such as those to the right, so don’t confuse them. Click here to learn more.
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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.
These posts are 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.
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.
The author has 25 years of automotive experience and has assembled the most extensive collection of symbols and warning lights anywhere (over 1,000!) and can help you open and start any keyless start car with a dead key fob battery. BA, St. Joseph’s College, ME: MS, Rensselaer Polytechnic Institute, NY
These are Diesel Exhaust Brake Indicator 
Automatic or Smart Exhaust Brake can be enabled by pushing the exhaust brake button again anytime after the normal Full Exhaust Brake has been turned on. The Exhaust Brake Indicator will change from 
This is the Auto Limited Slip Differential (LSD) Indicator 
This is a Dusk Sensor or Automatic Headlight Malfunction Indicator 
These symbols to the left are generally reserved as headlight out indicators, whether in 
Don’t confuse the first symbol with this one to the right. 
Unless they appear in 
One manufacturer has chosen to combine the second symbol with the 
Do not confuse any of these symbols with this one. 
These are 4 Wheel Drive Low Indicator 
These two are corresponding 4 Wheel Drive High indicators. The High setting is the default setting in a 4 wheel drive vehicle for normal driving conditions. For this reason, vehicle manufacturers rarely add this indicator. If it is added, High may be spelled out or abbreviated (HI). One manufacturer simply uses a 4×4 Indicator to mean that the vehicle is in 4×4 HIGH.
This indicator, 4WD AUTO, states that the vehicle is in AUTO mode. The vehicle will automatically engage 4 wheel drive when a loss of traction is sensed. Otherwise, the front axle is engaged, but the vehicle’s power is sent only to the rear wheels.
These symbols, a 4×2 or 2H Indicator, say that a 4 wheel drive vehicle is supplying power only to the rear wheels. The use of the rear wheels only is the correct choice in typical driving conditions. That is, smooth, dry roads.
The 4A, 4×4 Auto Indicators and the stick figure indicator with 4WD text in the center both say that 4-wheel drive will be available automatically for additional traction. Only electronically-controlled 4-wheel drive systems will have this available. These indicators become 
This symbol with the open circles is used in Australia and New Zealand to indicate only that the 4-wheel Drive system has been engaged. In North America, the same symbol is usually used to indicate a problem with an All-wheel Drive system, although Chevrolet has begun using it to also indicate the system is engaged. 
General Motors uses an indicator for five possible choices. Their system can be set to AUTO (automatic (AUTO), 4 high (HI), 4 LOW, 2 wheel drive (2WD) and finally N (or NEUTRAL in 
In all cases, the various 4-wheel drive systems are choices that can be made by the driver using either a lever or buttons. If the system will allow a different selection, or if a 4×2 indicator remains illuminated, contact your dealer or authorized service center immediately. Driving will be possible, but only at reduced speed.