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GMT800 - 1999-2006 generation coverage
1999-2006 GMC Sierra 1500 service guide Module Programming & Diagnostics
Choose a repair service below or find your module by part number. Onsite help is available in Dallas-Fort Worth, with mail-in module service nationwide.
What do you need fixed?
Choose a service to start your quote.
Find your module
Documented GMC Sierra 1500 module coverage for the 1999-2006 generation. Search by module name or part number, then open a result for requirements and repair options.
No matching records. Try a shorter part number or clear the filters. You can still request help if your module is not listed.
Reference information for 1999-2006. Coverage can vary by year and equipment. Confirm the VIN and full part number before ordering a replacement.
Vehicle overview
- Vehicle
- GMC Sierra 1500
- Model years
- 1999-2006
- Generation
- GMT800
- Platform
- GMT800
Tools we use for this vehicle
Factory scan, coding, and calibration access
GM GDS2 / GM Tech2Win / GM MDI 2
Factory routines and secure server authorization control this path when aftermarket coverage is not enough for the VIN.
Tool requirements
Factory programming software (J2534)
View capabilities and limitations
Supported work
- Factory scan, coding, and calibration access: Factory routines and secure server authorization control this path when aftermarket coverage is not enough for the VIN.
Generation service summary for GMC Sierra 1500 GMT800 (1999-2006)
Generation coverage
This page consolidates GMC Sierra 1500 service data for 1999-2006 across 8 model years; service information is available for 8 years.
Choose a yearProgrammable modules
Module support is confirmed by VIN and part number when no merged module records are listed.
View modulesCore Auto Logic capability
Core Auto Logic supports generation-level diagnostics, module programming, and SRS reset for the GMC Sierra 1500 1999-2006 span, with exact-year validation before service. Mail-in module service is available nationwide.
Get a quoteYear-by-year details
| Year | VIN split | Trim notes |
|---|---|---|
| 1999 | Verify exact Sierra 1500 trim, drivetrain, engine, and installed systems by VIN. | Sierra 1500-specific trim and service details require VIN review. |
| 2000 | Verify exact Sierra 1500 trim, drivetrain, engine, and installed systems by VIN. | Sierra 1500-specific trim and service details require VIN review. |
| 2001 | Verify exact Sierra 1500 trim, drivetrain, engine, and installed systems by VIN. | Sierra 1500-specific trim and service details require VIN review. |
| 2002 | Verify exact Sierra 1500 trim, drivetrain, engine, and installed systems by VIN. | Sierra 1500-specific trim and service details require VIN review. |
| 2003 | Verify exact Sierra 1500 trim, drivetrain, engine, and installed systems by VIN. | Sierra 1500-specific trim and service details require VIN review. |
| 2004 | Verify exact Sierra 1500 trim, drivetrain, engine, and installed systems by VIN. | Sierra 1500-specific trim and service details require VIN review. |
| 2005 | Verify exact Sierra 1500 trim, drivetrain, engine, and installed systems by VIN. | Sierra 1500-specific trim and service details require VIN review. |
| 2006 | Verify exact Sierra 1500 trim, drivetrain, engine, and installed systems by VIN. | Sierra 1500-specific trim and service details require VIN review. |
ARCHITECTURE & CONNECTIVITY
Architecture & Connectivity
- ECU/TCM Unlocking
- Contact us
- ECU/TCM Flashing
- Contact us
WHAT WE RESOLVE
GMT800 (1999-2006) common module and security issues
- VIN-specific diagnostics Known module and security issues for this span should be confirmed from VIN, DTCs, and part numbers before service.
FREQUENTLY ASKED QUESTIONS
FAQ
Can you program GMC Sierra 1500 (1999-2006) modules?
Yes. Core Auto Logic supports generation-scoped module programming for the GMC Sierra 1500 (1999-2006). Module support is confirmed by VIN before service. Rows marked with a year range apply only to that part of the span; unmarked rows are present across the merged generation data.
Which modules are documented for GMC Sierra 1500 (1999-2006)?
The GMC Sierra 1500 (1999-2006) generation currently shows 0 core module records. Part numbers and module variants must be confirmed for your exact year/VIN.
Can you reset the airbag module on GMC Sierra 1500 (1999-2006)?
Yes. SRS crash-data service is confirmed from the part number and VIN. Bench reset, cloning, and replacement setup are handled after part-number review. Any SRS part number shown for this generation is planning data only - confirm for your exact year/VIN.
Do all GMC Sierra 1500 (1999-2006) years use the same parts?
No assumption should be made across the full span. The generation page merges rows across 1999-2006; any row that does not span all data-bearing years is printed with its year range or treated as varies by year - verify by VIN. Part numbers always require exact year/VIN confirmation before ordering, cloning, or programming.
How long does service take for GMC Sierra 1500 (1999-2006)?
Most programming, cloning, and SRS jobs are quoted after VIN, DTC, part number, and repair-scope review. Service time varies by module type, condition, security access, and the active mobile service path. Mail-in module service is available nationwide. Exact service eligibility is confirmed from the year, VIN, module, and requested scope.
Is GMC Sierra 1500 (1999-2006) service mobile or mail-in?
Mobile service covers DFW on-vehicle diagnostics, post-repair coding, and supported module work. Mail-in module service is available nationwide. We confirm the active path for your exact year, VIN, module, and requested scope before service.
More Sierra 1500 generations
GMT800 1999-2006 You are here 2nd Gen GMT900 2007-2013 3rd Gen K2XX 2014-2018 4th Gen T1XX 2019-2026
Finish the repair
Need help finishing this repair?
Get onsite help in Dallas-Fort Worth. Ask about same-day availability or a one-time remote session for eligible non-VSP work.
GM SPS2 Explore one-time factory coding and programming. We confirm the software and procedure for your vehicle. Module programming & recovery Replacing a module or dealing with a failed programming attempt? Send the part numbers and fault scan for review. Onsite tools & equipment Bring in a technician or ask about hourly, daily and weekly rentals where licensing and equipment availability allow.