Question about 2005 GMC Sierra

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2005 Sierra 4wd is not working properly

I have the push button 4 wheel drive shift on the fly. The lights were all blinking then it would go into 4 low and now it won't do anything at all. I really need my four wheel drive and am on a very limited budget. What can I do to trouble shoot it? If I unplug the battery, what do I need to do to reset the system? A friend purchased a new switch, but after installing it, still nothing happens. Do I need to do a reset now? How? Thanks in advance for your help.

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We ended up taking it to the dealership, it was a sensor.

Posted on Jan 29, 2009


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Have 2005 Isuzu rodeo when I press buttons to go into 4 wheel drive nothing happens also when I turn vehicle on no 4 wheel drive sign comes up on the dash

2005 that car is not here USA. so where are you?
2004 last one. must be a held over 04 sold in 05,wild guess.
door jam rail driver side tells you build date, and is key to buying parts here in usa. and get the right parts.and HELP.
manual trans?(stick)or automatic.?
rule one,
what are the tires sitting on.what road)
offroad, ice,, pavement what? matters ! for sure part time 4wd.!!!
and 2 what 4wd is it, TOD, torque on demand.
car drive perfectly in 2wd, and all else OK>???????

to fix car, first know what's there,or its just dog chasing tail deal.
check fuses CB14 (and reverse lamps)blown?
EB14? (eb = engbay) cb is cab box.)

scan the pcm?
im looking in USA Rodeo now.. books
shift on the fly, 2004
has shift motor on the transfer case
and 6 switches there must work

my guess,fuses
but only having a full service manual ,an help working
Shift-on-the-fly systems or TOD, both are unique to Isuzu.

Feb 20, 2017 | Isuzu Cars & Trucks

1 Answer

Y do u need 2 buttons 2 use 4wd on 05 gmc

I have a 2003 GMC it has two buttons to use 4 wheel drive as most all do with push button controls...One is for standard highway driving with 4 wheel drive the other is for 4 wheel drive a low speeds for off road driving and conditions that need low speed less spin driving..not designed for highway use..and must be stopped to engage where 4 speed highway can be shifted on the go..hope this answers your question..good luck..

Feb 23, 2015 | 2005 GMC Sierra

1 Answer

My 1997 GMC Sierra lights for 4hi and 4lo blink when i push the 4hi button and then goes back into 2hi. but when i push 4lo it locks in and works fine. I tried changing the 4wd motor on the transfer c

THE TRANSFER CASE MOTOR IS ONLY FOR 4WD LOW. That would have never been the problem as soon as you confirmed it shifted into 4wd Low. 2wd and 4 Hi work off of vacuum. You may have one or two issues. A vacuum leak up by the front axle that engages the 4wd HI or the sensors on the transfer case.

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2 Answers

I have a 1996 chevy blazer and dont know how to disengage from four wheel drive to two wheel drive?

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Simply press the desired button while stationary and if the system is functioning properly then it will shift and the light for the engaged type of drive will be lighted. Generally you would like to be in 2wd for this vehicle.

Mar 10, 2010 | 1996 Chevrolet Blazer

1 Answer

2005 gmc sierra. Manual shift 4wd. After using

When you are finished with your 4 wheel drive,put the transmission in neutral, disengage 4 wheel drive and shift to reverse then back up a couple feet before shifting to forward gear.

Jan 15, 2010 | 2005 GMC Sierra

1 Answer

How to shift in and out of 4 wheel drive with a push button system on a 93 s10 blazer

this sytem is shift on the fly!! you can engage and disengage from 2wd to 4wd at speeds up to 45-50mph, 4wd lo you need to be a complete stop some cars need to be in neutral with parking brake on and some need to be in gear there all different, consult your owner manual for correct shifting pattern to 4wd lo range

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1 Answer

I have a 2005 GMC Sierra. After driving for a couple of miles the 'service 4wd' warning will display and not go away. The 4wd is fine. Do I need to reset a chip?


Jul 20, 2009 | 2005 GMC Sierra

1 Answer

Four wheel drive not working properly

while in drive, engage the 4wd, then shift into neutral for 2 or 3 seconds, then shift back into drive. it works for my '98 ram.

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3 Answers

I just bought a 2001 blazer 4.3 4wd and it was stuck in 4 low

It should tell you on the Shifter whether or not that you can Shift on the Fly. Check the Manual first if there is one in the Truck. Some Models had this and some Did not. Was an Extra from Factory Option.

Dec 31, 2008 | 2001 Chevrolet Blazer

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