iFixit - Answers With Device "GMC Sierra"

2014-Present GMC Sierra: stuck in 4 wheel drive

Sat, 11 Apr 2026 18:29:28 -0700

My truck is stuck in 4 wheel drive how can I fix this?

1988-1998 GMC Pickup: Transmission will not change gears

Thu, 09 Apr 2026 14:35:18 -0700

Transmission will not change gears

⟐ Commented April 09, 2026 at 14:35 MST

1999-2007 GMC Sierra: Cruise control not working, 2006 Duramax

Wed, 08 Apr 2026 00:14:58 -0700

Cruise control not working,,what can I check ?

On a 2006 Duramax,,

⟐ Commented April 08, 2026 at 0:14 MST

2014-Present GMC Sierra: 2018 Denali window controls not working

Tue, 24 Mar 2026 19:30:14 -0700

Drivers door switches wont control window functions on passenger and rear windows but operate drivers front window. Also mirror controls dont work

1999-2007 GMC Sierra: What causes all the clusters in a dash not to work and fuse is not blo

Sun, 22 Mar 2026 08:08:26 -0700

What is my gauges and my speedometer not working the truck and you can't start it by the key you have to pop the hood and start by solenoid

⟐ Answered March 22, 2026 at 8:08 MST

1999-2007 GMC Sierra: Why is hot air being forced out of defrosters when a/c is turned on?

Sun, 15 Mar 2026 20:27:25 -0700

Driver's side and rear has cold air but passenger side is hot air. and the defrosters are blowing out hot air even when the settings for windshield are off.

⟐ Commented March 15, 2026 at 20:27 MST

1988-1998 GMC Pickup: ABS cluster light is on, on my 98 gmc sierra 1500

Thu, 12 Mar 2026 13:13:19 -0700

My abs light in cluster turned on all of a sudden?

⟐ Commented March 12, 2026 at 13:13 MST

1999-2007 GMC Sierra: What gmc truck has interchangeable parts with my 2002 gmc sierra 1500?

Sat, 07 Mar 2026 21:26:21 -0700

What parts and frame on my 2004 Chevy tahoe fit my 2002 gmc.Sierra 1500 ?

⟐ Answered March 07, 2026 at 21:26 MST

2007-2014 GMC Sierra: Transfer case stuck n neutral

Thu, 26 Feb 2026 00:23:25 -0700

Was driving stoped and truck would not move get it home screw around with 4×4 switch (knob),and it goes back into 2 wheel drive drive for 2 months, need 4 wheel have snow won't go into 4 wheel goes into auto but front wheels won't spin won't go into 2 so I drive it as is goes and yesterday day stop won't go go to put in park and it's like it's still moving and makes that grind so 30 min ago I take off the little electric motor and spin this gear,counter clock wise untill stops kinda move back drive shaft front ( trucks in neutral ) put that electric piece back in fire it up and it makes a snap,bang,clunk,but it movesso I step on gas and it shifts one time slow as hell like I am 4 low and almost like it's slipping but not put in reverse and bang but drives actually a little faster than forward

1999-2007 GMC Sierra: 2001 4.8L V8 crank/ no start

Tue, 24 Feb 2026 09:30:16 -0700

The truck has been sitting for 2 years. I have replaced the fuel, fuel pump and fuel filter. Still no start. Plugs have spark and there is pressure on the fuel rail. Any idea what may be wrong?

1988-1998 GMC Pickup: Rear running lights do not work?

Mon, 02 Feb 2026 06:36:03 -0700

The rear running lights do not work on my 94 GMC Sierra . My turn signals and hazards are fine. and brake lights work when I hit pedal , but my tail lights that stay lit while driving do not work and I have changed the bulbs already and no fuse is blown. Any suggestions?

⟐ Commented February 02, 2026 at 6:36 MST

1988-1998 GMC Pickup: Why dont my brake light/turn signals work on 1995 gmc sierra 1500?

Sun, 01 Feb 2026 10:47:50 -0700

My reverse lights, brake lightand turn signals do not work. Running lights do. My 3rd brake light(on the cab) does work though. Fuses are good, relay seems good, new tail light bulbs and circuit boards still no fix.

⟐ Commented February 01, 2026 at 10:47 MST

2014-Present GMC Sierra: truck does not recognize the driver's door is open

Tue, 20 Jan 2026 20:43:42 -0700

When I open the driver's door, the radio continues to play and interior lights do not turn ON etc. How can I test if this is a sensor switch problem or a wiring issue.?

⟐ Commented January 20, 2026 at 20:43 MST

2014-Present GMC Sierra: Air bag light on

Sun, 04 Jan 2026 17:26:34 -0700

Air bag light It’s on, how to fix it

⟐ Answered January 04, 2026 at 17:26 MST

1988-1998 GMC Pickup: Dead Battery that can’t be charged

Sun, 04 Jan 2026 08:16:28 -0700

Which battery to get for a 1998 gmc 6.5 diesel long box

⟐ Answered January 04, 2026 at 8:16 MST

2007-2014 GMC Sierra: Radio display won't show

Tue, 30 Dec 2025 02:35:08 -0700

So the radio will work but the display won't light up or show. Checked the fuse box and it wasnt the problem

⟐ Answered December 30, 2025 at 2:35 MST

2007-2014 GMC Sierra: 5.3 brand new everything been replaced run rich

Fri, 26 Dec 2025 11:49:12 -0700

Replaced a brand new motor 5.3 crate everything’s been replaced on the motor as well and fuel pump still having run rich bank one bank too can’t figure it out. Doesn’t smell rich. Doesn’t feel like it’s running rich, but code keeps popping any help would be greatly appreciated. All new sensors as well.

1988-1998 GMC Pickup: How to change door handles inside

Fri, 26 Dec 2025 00:42:13 -0700

How to replace a door handle on the inside with electric windows

⟐ Commented December 26, 2025 at 0:42 MST

2007-2014 GMC Sierra: Ground for evaporator plug

Tue, 23 Dec 2025 10:31:01 -0700

My check engine light is on. Says ground wire evaporator. What is broken.

⟐ Commented December 23, 2025 at 10:31 MST

2007-2014 GMC Sierra: Side mirrors won't move

Wed, 17 Dec 2025 14:39:29 -0700

How do I fix the side mirrors so the will move?

⟐ Commented December 17, 2025 at 14:39 MST