A blinking TCL could also mean that the system isn’t fully functional, so it’s important to be careful in poor weather if you see this. This issue can be caused by faulty wheel-speed sensors - which alert your car’s computer to a potential loss of traction - or there could be a problem with the traction-control system’s computer. If the light blinks on and off intermittently, it can mean that the system is “hard coded” or beginning to deteriorate. If, however, your TCL turns on while you’re driving in good weather conditions, there is an issue with the system. It may turn on and off briefly or begin to flicker, but this indicates that the system is working as it should while you are on slippery roads. If you’re driving in inclement weather and the TCL turns on, it means that your system is working to keep your wheels in contact with the road. Without the traction-control system, you would run the risk of hydroplaning or skidding off the road. This transfer of power allows you to safely continue driving in the right direction. When the tires slip, your traction-control system turns on to shift the power from the tire that’s slipping to the tires that are still successfully gripping the road. The traction-control system is designed to detect when your car’s tires lose contact with the road during icy, rainy or windy conditions. What Does the Traction-Control Light Mean?ĭepending on the situation you’re in, an illuminated TCL may simply mean that the system is working properly. There are several circumstances that will cause your TCL to turn on, and each signals a different issue. It can look different, depending on your vehicle model, but it usually has the letters “TC” or an image that looks like a car with lines bending away from the tires. When your check-engine light turns on, for example, your mechanic will read the codes that the computer has generated to indicate which parts need attention.Īnother light on your dashboard is called the Traction-Control Light (TCL). When something goes wrong, the computer will alert you via lights on your dashboard. hope this helps guys.Your car has a computer that monitors and runs all of your vehicle’s components, ensuring that the parts are functioning properly. if you want find the posts that look like theyre rusting and reflow them bad boys with some flux! haha. If you do, $3 bucks at autozone or carquest will get you the glue kit you need.Īlso, if youre feeling froggy, GM didnt seem to use much flux (corrosion preventer and adhesion promotor for solder) on the main power lugs for the LCD circuit board. if not then you have found your problem! just re solder that resistor and you should be back in business! Reassembly is reverse of dissassembly, just be careful you dont pop your windshield button off like I did lol. If you know how to use a multimeter just verify that you have continuity from the solder on one side to the solder on the other. On the left (the circuit board that the LCD is mounted on) you will see a series of 4-5 larger black resistors with the code R3 on the back. Then set it on your work bench glass side down so that you are looking at the backside of the circuit board. Take the mirror off, pop the plastic face that holds the glass and carefully disconnect the small connector behind the glass that connects the circuit board to the mirror housing. The issue is similiar to that of the "dim PRNDL" that plagues these chevys in that it is most likely a resistor that just needs the solder to be re flowed on the circuit board (sounds hard but it is quite easy) you will need a solder iron that gets up to about 550-585 F in order to melt the solder but a good soldering iron is cheaper than a new mirror. If your problem is that the power light on your mirror is on but that your temp/compass LCD is not (or has been intermittent for awhile but works with smacking and is now dead) then you should at least look into what I found. If youre like me then youre frustrated that your mirror quit working however many years ago. 2003 chevy rear view mirror compass/temp fix
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