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 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 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 4 wheel drive Bulletin?

When does the service 4WD light come on?

Got some ice 2 nights ago, used 4wd. Today, the service 4wd light was on constantly. Everytime i would leave from a stop, i would get the ding and the light would come on. Stopped by the dealer, picked up the actuator i ordered some time back, R&R’d the actuator, about a 5 minute job.

Why does service 4 wheel drive come on?

Both times the service 4 wheel drive message came on for no reason. I wasn’t even trying to go into 4 wheel drive. Yeah i wasn’t in 4wd and haven’t used 4wd in quite a few days, about 2 weeks actually. I had a problem with my Mega Cab…turned out to be a pinched wire going to the wheel speed sensor.

Is there a 4WD light on a 2000 Chevy Silverado?

Mine is a 2000 Silverado Z-71 Extended Cab. The part number is the longer of the two – 15709327. I believe they used this part for 1999, 2000, and 2001. You can purchase the part, APDTY 012173 4×4, Four Wheel Drive 4WD Transfer Case Selector Button Switch. Replaces GM Part Numbers 15709327, or 19168767, from amazon by clicking the link below.

What does the service 4WD light on mean?

Service 4WD lite will come on, lites on 2wd, 4wd hi and lo indicator will come on simultaneously in a dimmer mode or one will have a red lite. Vehicle will behave like it is shifting into 4WD but won’t fully engage. Engine will become sporadic and will sometimes have an effect of the transmission shifting up and down in the gears.

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.

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.

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.

Why is my 4 wheel drive light not engaging?

If you don’t shift it into neutral, the 4wd light will continue to flash and won’t get into gear. Seems to be a common occurrence on these trucks. Dodge dealers recommend engaging 4-lo, then back in 2-wheel drive, then back in 4-wheel drive hi (4H). This sequence apparently resolves the problem.

What to do when your four wheel drive light is on?