What does it mean when your 4 wheel drive service light comes on?

Vehicles that have four wheel drive systems tend to have a separate light to indicate an issue with the system. Usually labeled “Service 4WD”, when this light comes on, a code will be stored in the computer’s memory to help identify any issues. Depending on the problem, the four wheel drive may be disabled temporarily.

What does the service all-wheel drive light mean?

The “Service AWD System” light comes on when the computer detects that there is an issue with the AWD system. When this light illuminates, the vehicle has detected a problem with the AWD system, or the diameter of the front and rear wheels is different.

What is 4WD drive type?

When the engine power is distributed to all wheels the vehicle is all-wheel drive (AWD) or four-wheel drive (4WD). There is no clear distinction between AWD and 4WD, but usually 4WD vehicles contain a transfer case, which has a central differential and an optional two-gear reductor (LO-low and HI-high).

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.

What does service all wheel drive MSG mean on DiC?

We own a 2010 Acadia SLT. It currently had 110k Miles, but still runs and drives great. However lately we have noticed that at times when the car has been started the “service all wheel drive” msg shows on the DIC. As suggested in the user manual, we have turned off the motor, waited more than 30 seconds and the restart the vehicle.

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 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.

What’s the service 4 wheel drive message on my truck?

Hey Everyone! Enter your ride HERE to be a part of this months Ride of the Month Challenge! When driving my truck to day I noticed that the service 4wd message was on my DIC. I shut the truck off and restarted the truck.

What is the GM 4 wheel drive Bulletin?

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 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.