Question about 2006 GMC Envoy

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The knob is broken that selects the four wheel drive mode on my 2006 Envoy. Why can't I just get a knob? How do I replace the switch if I really HAVE to?

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Posted on Jan 02, 2017

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SOURCE: Car permanently in 4 wheel drive.How do i select 2 wheel drive ?

sort of switch

Posted on Mar 01, 2009

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SOURCE: 2003 gmc envoy 4x4 not working

My 2005 Envoy 4WD is not working. Switc is currently on 2HI, but light is showing AWD. What is the problem???

Posted on Sep 13, 2010

  • 34 Answers

SOURCE: when do i use my

In AWD you are free to run on all surfaces dry or otherwise. In 4x4 high or low ensure there is limited traction to allow slippage of the tires. If you run 4x4 high or low on dry pavement you may damage your driveline. AWD is great for mixed driving conditions but unlike the larger GMC vehicles with this option, the Envoy and TB are somewhat noisy and allow more slippage of the rear wheels before engaging the front resulting in a clunk at times.

Posted on Feb 23, 2011

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SOURCE: i have a 2004 envoy

Check fuse #48 in the rear fuse panel first. If fuse is good, you may have a bad selector switch or the TCCM (Transfer Case Control Module) has gone bad. A technician with a high end scan tool can diagnose the system.

Posted on Jul 21, 2011

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1 Answer

I have a 2006 f350. Ford will not go into 4wheel

Which 4X4 system does yours have ?
Four-Wheel Drive Systems The mechanical-shift 4-wheel drive system consists of the following components:
  • Transfer case (For transfer case repair procedures, refer to Section 308-07B ).
  • Transfer case shift lever
  • Manual locking hubs
  • 4x4 indicators
  • Shift linkage (hub locks)
The electronic-shift, 4-wheel drive system consists of the following components:
  • Transfer case (For transfer case repair procedures, refer to Section 308-07B ).
  • Four-wheel drive (4WD) control module (For 4WD control module installation, refer to 4WD control module in this section.)
  • Mode select switch (MSS)
  • Gearmotor encoder assembly
  • Automatic locking hubs (hub locks)
  • Pulse vacuum hub lock (PVH) solenoid and vacuum lines

Jan 11, 2018 | Ford Cars & Trucks

1 Answer

What would make my four wheel drive not work on my 2006 ford escape?

Sounds like one of the ABS tone wheels has broken. Any one of them that does not function properly will cause the 4 wheel drive to quit working. There should be an ABS fault code that triggers a dash light but perhaps not in this case. Inspect each wheel end tone wheel and if you can turn any of them without rotating the hub/ tire assembly you have found the issue

Aug 28, 2014 | 2006 Ford Escape

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Cant locate four wheel drive on off switch

sound like you have the automatic four wheel drive system where the transfercase control module controls the 4WD system if you dont see shifter knob on console you have automatic 4WD drive system.

Jan 17, 2013 | 1998 Mercury Mountaineer

2 Answers

When do i use my gmc envoy 2006 four wheel drive or awd

4x4 when you want it locked in all the time and all when you want it to decide when to kick in

Feb 01, 2011 | 2006 GMC Envoy Xl

1 Answer

My 4 wheel drive selection switch lite does not work. Does the 4 wheel drive system still work properly?, or is it an indication that something is wrong?

Drive to a dirt or gravel surface and push the 4wd button. Take off fast enough to spin the tires. If only the back tires spin, then 4wd is not working.

Jan 30, 2011 | 2006 GMC Envoy

1 Answer

The 4 wheel drive switch is broken and we would like to know how to replace it.....the entire switch is missing and we have been using a tool to change it between awd and 4wd

If the entire switch is missing, how can you change settings? I assume you mean that the knob is missing. The switch assembly can be removed by simply prying the switch out of the dash panel carefully, it is held in place by plastic tabs on its body.

Jan 23, 2011 | 2005 GMC Envoy

2 Answers

I wanna use my 4 wheel drive but I don't know which one to use. I have a 2006 gmc envoy

Depends on what you'd like to use the 4wd for. 4HI would be for faster speeds, or when you need to go faster than say 20mph. AWD would be for light snow on the highway or heavy rains and so on at highway speeds. 4Low would be for going really slow. I hope I understood your question, and weren't asking which knob to turn. Make sense?

Jan 12, 2011 | 2006 GMC Envoy

1 Answer


2006 envoy will remain in auto,,,will not select any drive

Jan 09, 2011 | 2006 GMC Envoy

1 Answer

My 2006 GMC Envoy Denali is stuck in 4 wheel drive low. I tried putting it in reverse and then drive but to no avail. Any other suggestions? Also...can I still drive it until I can get to the...

i would not suggest driving it u can start by replacing the selector switch as this is the cheapest thing to replace my switch was bad and made mine stay in four low please rate my advice

Dec 20, 2008 | 2006 GMC Envoy Denali

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