Why does the service 4WD light come on?
When the Service 4WD indicator lights up it’s telling us there’s a problem related to the Transfer Case Shift Control Module, the appropriate Diagnostic Trouble Code has been stored in the control module’s memory, and it’s gonna shutdown 4×4 operation to prevent additional damage.
Why do I get a service 4 wheel drive message?
The codes and message may also be set during normal driving conditions in Auto 4WD, 4HI or 4LO. The trouble codes often set intermittently set during extreme cold or warm weather, or when the battery has a low charge. GM has issued a software update to correct the problem. DO NOT replace the Transmission case control module TCCM.
Why is my DTC 4WD light not working?
Some people say they have an intermittent illumination of the Service 4WD light. Upon inspection the technician may find DTC C0374 set. The customers may also say they have an intermittent erratic operation of the 4WD. You may notice the problem may occur on rough road or when wet conditions are present.
What is the 4 wheel drive trouble code?
In addition to the Service 4 Wheel Drive Message, you may also have a C0387 or a C0569 trouble code stored. 2007–2009 Chevrolet Avalanche, Silverado, Silverado Hybrid, Suburban, Tahoe, Tahoe Hybrid
When the Service 4WD indicator lights up it’s telling us there’s a problem related to the Transfer Case Shift Control Module, the appropriate Diagnostic Trouble Code has been stored in the control module’s memory, and it’s gonna shutdown 4×4 operation to prevent additional damage.
What is the GM service 4 wheel drive message?
GM has issued a service bulletin # 09-04-21-001 to address a Service 4 Wheel Drive Message condition on the vehicles listed below. In addition to the Service 4 Wheel Drive Message, you may also have a C0387 or a C0569 trouble code stored.
In addition to the Service 4 Wheel Drive Message, you may also have a C0387 or a C0569 trouble code stored. 2007–2009 Chevrolet Avalanche, Silverado, Silverado Hybrid, Suburban, Tahoe, Tahoe Hybrid
Some people say they have an intermittent illumination of the Service 4WD light. Upon inspection the technician may find DTC C0374 set. The customers may also say they have an intermittent erratic operation of the 4WD. You may notice the problem may occur on rough road or when wet conditions are present.
What does the 4 wheel drive light mean?
The purpose of the 4 wheel drive light is to indicate when you have engaged 4WD mode by selecting 4H. When the light flashes continuously for more than 30 seconds it signifies there is a problem somewhere on your drivetrain system and that 4WD has not engaged properly.
Why are there no lights on my 4WD suburban?
Last week the message does not go away after restarting the car so I pull out the selector switch and resolder the joints then plug it back in to find that the “Service 4WD” message is gone but there are no lights at all. I press the buttons but nothing happens. I’m in 2WD.
Why does my dash say service 4 wheel drive?
1 people found this helpful. My vehicle (2007 GMC Sierra SLE 4X4 2 Door Reg Cab) will sometimes (not all the time) go into a twitching mode and it flashes “Service 4WD” and all of the gauges will just twitch, the radio won’t work, and my AC will then blow Hot Air, instead of Cold Air.
Why does my 4WD light come on on my Chevy Silverado?
There is a common problem with 1999-2001 Chevrolet Silverado where the service 4wd light comes on in the vehicle. The light is scary and led me to believe there were major issues with my four wheel drive, but it turns out its a quick, cheap, and painless fix by swapping out the 4wd selector switch.
The purpose of the 4 wheel drive light is to indicate when you have engaged 4WD mode by selecting 4H. When the light flashes continuously for more than 30 seconds it signifies there is a problem somewhere on your drivetrain system and that 4WD has not engaged properly.
Last week the message does not go away after restarting the car so I pull out the selector switch and resolder the joints then plug it back in to find that the “Service 4WD” message is gone but there are no lights at all. I press the buttons but nothing happens. I’m in 2WD.
What to do when your four wheel drive light is on?
If your service light is on or if your four wheel drive system doesn’t seem to be working properly, ask one of our certified technicians to help you diagnose any problems. The most popular service booked by readers of this article is Warning Light is on Inspection.
When to reset service 4 wheel drive message?
2007–2009 Chevrolet Avalanche, Silverado, Silverado Hybrid, Suburban, Tahoe, Tahoe Hybrid When the trouble codes are stored and the Service 4 Wheel Drive Message is displayed, the transfer case is inoperative for the rest of that particular key cycle. It will test again and reset the message on the next key cycle if the problem hasn’t been fixed.
Is the service 4WD light coming on again?
After a few months of ownership, I started having the ‘service 4wd’ light blink on for a few seconds at random times. The dealer flashed the TSB concerning the problem and it went away. A few weeks ago the light started coming on again, concurrently with the ‘traction control off’ light.
If your service light is on or if your four wheel drive system doesn’t seem to be working properly, ask one of our certified technicians to help you diagnose any problems. The most popular service booked by readers of this article is Warning Light is on Inspection.
How often does the 4WD light come on on a Silverado?
Question: I have a 2005 Chevrolet Silverado and my SERVICE 4WD light comes on about once a week. When the light is on, the truck won’t engage into 4-wheel drive. When I turn my truck off and start it again, the 4-wheel drive will work until the next time the light comes on.
2007–2009 Chevrolet Avalanche, Silverado, Silverado Hybrid, Suburban, Tahoe, Tahoe Hybrid When the trouble codes are stored and the Service 4 Wheel Drive Message is displayed, the transfer case is inoperative for the rest of that particular key cycle. It will test again and reset the message on the next key cycle if the problem hasn’t been fixed.
When does the TCS warning light come on?
The TCS warning light will pop on when the system detects a loss of traction, like in snowy or rainy weather. Typically the light is seen when the system intervenes to maintain traction. It may light up for a brief period and then go off, or it may flash while it is operating.
What does ” service 4WD system ” message mean?
Properly diagnosing and repairing any problems found should restore the system to proper operation. The “Service 4WD System” message does not mean it is time for routine maintenance of the 4WD system; rather, it indicates a problem with the 4WD system that should be properly diagnosed and repaired.
What does the four wheel drive warning light mean?
The four wheel drive light means your car has activated four wheel drive. If the Service 4WD light is on, there may be an issue with the system. Is it safe to drive with the four wheel drive indicator lights on? Anyone who off-roads for a hobby knows that four wheel drive is a must have.
Is there a check 4WD light reset procedure?
The “Check 4wd Light Reset Procedure” is simple operation that takes about a minute. However Holden and Isuzu dealers like to charge $1200 to “fix it”. In some cases you might find you need to hold the buttons for a full 60 seconds. Loading…
Why is my 4WD selector light not working?
If the 4WD selector light in your truck won’t work properly, the problem could be any number of things. However, don’t anticipate making a drive down to your local Chevrolet dealer or mechanic for help just yet.
How long does it take to fix 4WD selector light?
Using just a few handy troubleshooting tips and inexpensive materials, you can usually diagnose and repair a faulty 4WD selector light in about 15 minutes to an hour. Here are a few simple things you can do to get this light working properly again.
Why does my 4 wheel drive light not work?
Only when you start the vehicle up, you must check the selection. My 4 wheel drive dont work, the light on the selector is solid on on button but flashes on another, Ive replaced the selector switch and the 4 wheel drive actuator but has not helped. I had the same problem with the 4 wheel drive transfer acting crazy.
What to do if your 4WD light is flashing?
It’s a corroded actuator. Gently tap the actuator housing with a rubber mallet and see if that gets it to work. If so, remove the housing, clean well (a light sanding of the contacts, depending on corrosion, might help), apply a light coat of dielectric grease, and reinstall.
The “Check 4wd Light Reset Procedure” is simple operation that takes about a minute. However Holden and Isuzu dealers like to charge $1200 to “fix it”. In some cases you might find you need to hold the buttons for a full 60 seconds. Loading…
Can a faulty 4WD selector light be repaired?
However, don’t anticipate making a drive down to your local Chevrolet dealer or mechanic for help just yet. Using just a few handy troubleshooting tips and inexpensive materials, you can usually diagnose and repair a faulty 4WD selector light in about 15 minutes to an hour.