2003 GMC Sierra 2500 Consumer Discussions

Chevy Silverado and GMC Sierra Electrical and Computer Questions

Re: 2004 GMC Sierra 2500 Alarm Problems [sdlerner]

Written by: himie on Aug 23, 2009 07:14 PM

I have a 2003 2500 Sierra with factory alarm thatbis going off in the middle of the nigh. I was wondering if you ever came up with a solution to your problem. Read More...

Chevy Silverado and GMC Sierra Transmission Problems

p0700 transmission code on allison

Written by: kevinc70 on Apr 14, 2009 00:41 PM

I have a check engine light on in my 2003 GMC sierra 2500 h.d with the allison and when I scan it a p0700 transmission code comes up and wont erase. The truck also has no reverse lights and the steering column indicator does not work, along with DIC (driver info center) could this be linked or just a coincidence. It seems to shift and operate fine. Just wondering if anybody ... Read More...

Chevy Silverado and GMC Sierra Brake Problems

2008 Sierra problems

Written by: gmc8 on Mar 03, 2008 11:59 AM

I just purchased a 2008 GMC 2500 Sierra crew cab. I presently own 4 GM vehicles that are 2003 or newer. I have owed over 15 GM cars in my lifetime. I have a little over 900 miles on the truck and have experienced some brake problems. When the brakes are applied as you are approaching a stop light, and you happen to hit a bump in the road, recessed manhole cover, or small ... Read More...

Re: 2001 Silverado 1500 Brake Pulsation [sweetlb]

Written by: ttaupier1 on Aug 09, 2007 09:59 PM

I am not sure its the front rotors and calipers ...are a problem.. but rather the symptom. I have put new rear calipers from SSBC on my 2003 GMC Sierra, not sure it matters what type, but rather the rear calipers are swapped for something that works. I also added brake SS-lines. I drive in Boston traffice weekly and have for about 35-45k miles on top of the 45k i had when ... Read More...

Chevy Silverado and GMC Sierra Electrical and Computer Questions

Battery not Charging 2003 GMC Sierra 2500

Written by: talon03 on Dec 01, 2006 04:31 PM

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Re: Battery not Charging 2003 GMC Sierra 2500 [talon03]

Written by: myz71 on Dec 01, 2006 04:31 PM

I just changed my battery and was having similar problems. I took it into the shop today and they informed me that after replacing the battery, I have to start the truck, hold the brake, put the truck in drive and rev the engine to 2000 rpm for 2 minutes. This resets the computer and now mine works fine. I hope this helps. Read More...

Battery not Charging 2003 GMC Sierra 2500

Written by: talon03 on Nov 18, 2006 03:06 PM

I've been receiving the "battery not charging" message. I've replaced both the alternator and the battery with parts from Pep Boys. The terminal cables are clean. Additionally the voltage gauge in the dash fluctuates up and down at low RPM. Especially if you're running the lights and air conditioner. Any ideas? Read More...

Chevy Silverado: Problems & Solutions

Used 2003 Silverado 2500HD LS: Warranty

Written by: cathmac on Sep 27, 2005 11:00 AM

I have a follow up to my previous posting, # 688, as noted at the end of that posting, but not in the Title, I am looking for advice on what to do for an extended Warranty. One option I didn't outline, but am considering, is to get a shorter term such as 3 years / 36K miles just to get me through the first couple of years but with the option of doing a private party sale and transferring ... Read More...

Chevy Silverado/GMC Sierra - Owners hangout

Rough Rider

Written by: westuag on Jul 08, 2003 06:45 PM

I just traded my 97 Extended Cab Z71 in for a 2003 GMC Sierra HD Crew Cab 4x4. I have noticed that the ride is much rougher in the new truck. I know that it is built on a 2500 frame and I am assuming that there is a big difference in the suspension from my old truck. My question is, what can I do to make the new truck ride smoother? Change the shocks?, if so what should I change ... Read More...