Why does my dash say service 4 wheel drive?
Service 4 wheel drive in dash indicator comes on and lights go out on the transfer case switch nob. If I turn off the engine and wait for 10 min. then start truck everything is ok. and I can turn nob to whatever location I want and it will shift.
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.
Why does my GMC Sierra 1500 say service 4WD?
Having similar issues as above, had to drive the truck in 4wd high for a short period of time without the rear drive shaft, heard a clunk and the service 4wd message came on, the front drive shaft quit which left me stranded.
What is the GM 4 wheel drive Bulletin?
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. 2007–2009 Chevrolet Avalanche, Silverado, Silverado Hybrid, Suburban, Tahoe, Tahoe Hybrid
Service 4 wheel drive in dash indicator comes on and lights go out on the transfer case switch nob. If I turn off the engine and wait for 10 min. then start truck everything is ok. and I can turn nob to whatever location I want and it will shift.
Having similar issues as above, had to drive the truck in 4wd high for a short period of time without the rear drive shaft, heard a clunk and the service 4wd message came on, the front drive shaft quit which left me stranded.
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.
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. 2007–2009 Chevrolet Avalanche, Silverado, Silverado Hybrid, Suburban, Tahoe, Tahoe Hybrid
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.
When does the 4 wheel drive Trouble indicator come on?
These are 4 Wheel Drive ( 4WD) Trouble Indicator symbols. This first light will be seen under conditions specified by the manufacturer. For some, it will only be illuminated if there is a malfunction in the 4WD system. The light will also come on if the front wheel or tire diameters are different from those on the rear.
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.
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.
What does the four wheel drive indicator light mean?
What the four wheel drive indicator light means. When you engage the four wheel drive, a corresponding light is illuminated on the dash. Vehicles with multiple gear ranges will also indicate what range has been selected. High and low are commonly abbreviated to “hi” and “lo” respectively.
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.
What happens when service 4 wheel drive trouble codes are stored?
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. The codes may be stored with or without you requesting a transfer case shift.
Why is my service 4WD indicator not working?
If the wires are broken, the actuator won’t operate and the actuator won’t move. If it does not move to the proper position, the buttons on the dash will blink and the “Service 4WD” indicator will be lit because the TCCM never sees a complete 4WD engagement. The ground wire to my front axle actuator was the culprit on my truck.
Is the 4 wheel drive service light connected to the functionality light?
Whether or not the service light is linked to the functionality light of the 4wd is questionable. It should not be. If it is, there is an electrical problem in the system as @csa indicates. So… When in 4 wd on a lift, you can rotate the wheels then the transfer case shaft to see what is truly engaged.
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.
What does the service 4WD light on a GM Truck mean?
The solid lights on the 4WD buttons are telling you where the transfer case encoder motor thinks it is, and blinks on the mode that it is trying to go to after you push the button. If it fails to move to the new position, it goes back to a solid light on the original position and illuminates the “SERVICE 4WD” light.
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.
Can you reset the warning service 4WD system?
You cannot simply “reset” the Service 4WD System. That message is being displayed to alert you there is a problem in the system. This is usually a circuit problem in the front or rear differential solenoids. or a transfer case motor circuit issue.
Is the service 4WD light on or off?
Immediately afterwards, ‘Service 4WD’ light was on. Parked, shut if off, and the light was off when I re-started it. I’m at about 1,400 and it hasn’t happened again yet.
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 happens when the service 4WD light comes on?
When the Service 4WD light comes on, it also shuts down the 4WD capability for the remainder of the drive cycle. This is a software issue and can only be corrected by flashing the computer’s memory.
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. The codes may be stored with or without you requesting a transfer case shift.
Is the 4WD select switch a warning light?
Bad 4wd select switch on the dash. 8 times of of 10. The other 2 times is the control module. Don’t be afraid to drive it, it’s a notice light, not a warning light. GM/ASE Certified Parts Manager.
Why is there a service 4WD light on my Trailblazer?
Re: “Service 4WD” light on Trailblazer – Possible causes? (Kari) Bad 4wd select switch on the dash. 8 times of of 10. The other 2 times is the control module. Don’t be afraid to drive it, it’s a notice light, not a warning light. GM/ASE Certified Parts Manager.
What does service 4 wheel drive panel light mean?
Our 2007 Chevy Tahoe 4 X 4 recently displayed a “Service Four Wheel Drive” panel light a couple of days ago (upon ignition on a sunny, dry day). The light had been steady which, when we read the owners manual, indicates a problem but no immediate service required.
When did my 4 wheel drive light come on?
On March 5th/2018 my 2007 Silverado Chev 4×4 “Service four wheel drive” light came on. It wouldn’t go into 4 wheel drive. On the 8th, it cost a pretty penny to have it fixed at a good dealership where I bought the truck. They have a service there and they are a huge company. I brought it home and 2 days later, the light came back on.
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.