What does it mean when it says service four wheel drive?
The “Service 4WD System” message indicates a problem with the 4WD system that should be properly diagnosed and repaired. When the ignition key is turned from OFF-RUN-START and is released back to the RUN position after the vehicle starts, the 4WD warning light should go on for 1 to 2 seconds and then go out.
How do you reset the service four wheel drive?
To reset the Change Oil light turn the ignition on but do not start and then push the gas pedal 3 times. The Service 4WD light is most likely the 4WD switch on the dashboard. If the lights are acting funny then the switch needs to be replaced.
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 are my 4 wheel drive lights not working?
You never indicated that the vehicle actually failed to function as a 4wd when the lights did not go on. If it did, it again, is a position switch problem. If it did not, the actuators ( there may be two, transfer case and front differential) could be a problem. This often occurs from lack of service And/or lack of use.
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.
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.