How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), GMC Mechanic
Category: GM
Satisfied Customers: 29358
Experience:  GM Grand Master Technician 2007. 14 years experience.
Type Your GM Question Here...
GM Tech (Cam) is online now
A new question is answered every 9 seconds

2007 gmc: i replaced my battery..2500 hd..reprogram

This answer was rated:

i replaced my battery on my 2007 gmc 2500HD diesel and now it will not start. I have tried the 30 min reprogram and the light that sould stay on for 10mins go off in a few sec. can any one help?
Welcome. IS this a new style or old style? Does it crank and not start or just not cranks?
Customer: replied 7 years ago.

It is a new style. It will not do any thing.whin i trun the key on i do not see the pic of the motor with the glowplug light


Check the fuses under the black cover beside the passengers side battery. It sounds like you have an open fuse. The ones labeled D or E go to the left fuse block and if the fuse is open, there will be nothing at all. Truck=paperweight.


Customer: replied 7 years ago.
they are all there.
Customer: replied 7 years ago.

i pulled the drivers side battery and put it back in. you know how when you trun the key on to start the truck the light for the motor comes on it does not come on at all. but ever thing else does like it should. i thought it might need to reprogram the key but in the 30 min reprogram how to it say the telltail light will stay on for 10 mins and to do this three time but only stay on like normall.


Please post your VIN.

Customer: replied 7 years ago.



Ok, there is an open recall on your truck for this very thing. It is a calibration update for the ECM. Below is a copy of the recall.

#08142A: Customer Satisfaction - ECM EEPROM - Reprogram ECM - (Oct 23, 2008)

Subject:08142A -- ECM EEPROM - Reprogram ECM

Models:All 2007 and Certain 2008 Chevrolet Silverado, Express
All 2007 and Certain 2008 GMC Sierra, Savana
Equipped with 6.6L Duramax V8 Diesel (RPO LMM - VIN 6) Engine




All 2007 and certain 2008 Chevrolet Silverado, Express; GMC Sierra and Savana vehicles, equipped with a 6.6L Duramax Diesel V8 (RPO LMM - VIN 6) engine, were produced with an ECM programming error that can result in incorrect data being written to the EEPROM used by the vehicle theft deterrent system, causing the engine not to crank or start.


Dealers are to reprogram the ECM with revised software that corrects the programming error.

Vehicles Involved

Involved are all 2007 and certain 2008 Chevrolet Silverado, Express; GMC Sierra and Savana vehicles, equipped with a 6.6L Duramax Diesel V8 (RPO LMM - VIN 6) engine and built within these VIN breakpoints:








Silverado HD












Sierra HD












Silverado HD












Sierra HD










Important: Dealers are to confirm vehicle eligibility prior to beginning repairs by using the system below. Not all vehicles within the above breakpoints may be involved.

- GM dealers should use GMVIS.



For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle identification number, customer name, and address information has been prepared and will be provided through the applicable system listed below. Dealers will not have a report available if they have no involved vehicles currently assigned.

- US GM dealers - GM DealerWorld Recall Information

- Canadian GM dealers - GMinfoNet Recall Reports

- Export dealers - sent directly to dealers

The listing may contain customer names and addresses obtained from Motor Vehicle Registration Records. The use of such motor vehicle registration data for any purpose other than follow-up necessary to complete this program is a violation of law in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this program.

Calibration Information

Do not attempt to order the calibration number from GMSPO. The calibration numbers required for this service procedure are programmed into control modules via an MDI and Techline Tech 2® scan tool and TIS 2 WEB website with the following calibration updates:

2007-08 Chevrolet Silverado, Express; GMC Sierra, Savana: Use data version 5.5 for 2008 as of 05/12/08 or later, available on TIS 2 WEB; and on TIS DVD version 6.0 / 2008 or later, mailed to dealers beginning 06/04/08.

If you cannot access the calibration, call the Techline Customer Support Center and it will be provided.

Service Procedure

Program Engine Control Module

    Important: Verify that the 12 volt battery has a battery charge of 12 to 16 volts. The battery must be able to maintain a charge during programming. Only use approved Midtronics 165-PCS charger or equivalent to maintain proper battery voltage during programming.

  1. Refer to Service Programming System (SPS) in SI for programming procedures.
  2. Program the ECM with the latest calibration. This calibration, or any that follow, is designed to address VTD concerns. As always, make sure your Tech 2® is updated with the latest software version.
  3. Select the J2534 MDI and Reprogram the ECU from the Select Diagnostic Tool and Programming Process screen. The J2534 MDI will reprogram the modules in less time than the Tech 2® scan tool.

Additional Information for Vehicles currently experiencing this condition

One or more of the DTCs listed in the table below will be set in the event that a vehicle is currently experiencing this condition. Do not replace the ECM. Additional steps may also be required to properly complete the service procedure, as listed in the table below.


Technician Observation

Perform After ECM Programming


No trouble found. Program ECM.

One ignition cycle. Start the engine.


2007 Express and Savana Vans Only . Program ECM.

*VTD Learn required. Ten minute with Tech 2® via TIS2WEB.

No DTCS with VTD Light Illuminated

2007 Express and Savana Vans Only. Program ECM. Perform VTD Learn.

*VTD Learn required. Ten minute with Tech 2® via TIS2WEB.

P062F and P0633

Program ECM.

One ignition Cycle. Start the engine.


The following DTCs P062F/P0633 can occur before or any combination of all three DTCs. Program ECM.

VTD Learn required. Ten minute with Tech 2® via TIS2WEB.

* For the 2007 Express and Savana Vans Only . When performing the VTD Learn with Tech 2® via TIS2WEB, when prompted select Powertrain VTD Learn.

Courtesy Transportation - For US and Canada

The General Motors Courtesy Transportation program is intended to minimize customer inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited Warranties. The availability of courtesy transportation to customers whose vehicles are within the warranty coverage period and involved in a product program is very important in maintaining customer satisfaction. Dealers are to ensure that these customers understand that shuttle service or some other form of courtesy transportation is available and will be provided at no charge. GM dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy Transportation guidelines.

Claim Information -- GM

Customer: replied 7 years ago.

so i will need them to come tow the the truck to the dealer? then they can reprogram the ECM.

That is correct. Call roadside and get GM to pick up the bill. It is a recall.
GM Tech (Cam), GMC Mechanic
Category: GM
Satisfied Customers: 29358
Experience: GM Grand Master Technician 2007. 14 years experience.
GM Tech (Cam) and other GM Specialists are ready to help you

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

  • I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money. Todd L Rochester NY
< Previous | Next >
  • I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money. Todd L Rochester NY
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland

Meet The Experts:

  • GM Tech (Cam)

    GM Tech (Cam)

    GMC Mechanic

    Satisfied Customers:

    GM Grand Master Technician 2007. 14 years experience.
< Last | Next >
  • GM Tech (Cam)'s Avatar

    GM Tech (Cam)

    GMC Mechanic

    Satisfied Customers:

    GM Grand Master Technician 2007. 14 years experience.
  • Gary's Avatar


    GMC Technician

    Satisfied Customers:

    15 years gm master tech/15 years ASE master tech
  • car tech's Avatar

    car tech

    ASE Certified Technician

    Satisfied Customers:

    25 year master tech and shop owner
  • Paul M ASE Master's Avatar

    Paul M ASE Master

    ASE Master Tech

    Satisfied Customers:

    ASE Master Tech 20+ Years
  • Chris (aka- Moose)'s Avatar

    Chris (aka- Moose)

    GMC Technician

    Satisfied Customers:

    16 years of experience
  • Anthony's Avatar


    GMC Technician

    Satisfied Customers:

    GM Certified
  • Amedee's Avatar


    GMC Technician

    Satisfied Customers:

    ASE certified tech with advanced level specialist. Wisconsin certified emissions state inspector