Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 Hummer H2 V8-6.0LFACTORY OEM SERVICE PROCEDURE
Keyless Entry - System Inoperative
File In Section: 08 - Body and Accessories
Bulletin No.: 03-08-52-001
Date: January, 2003
ADVANCED SERVICE INFORMATION
Subject:
Remote Keyless Entry (RKE) System Inoperative
(Reprogram Passenger Door Module)
Models:
2003 Cadillac Escalade, Escalade EXT
2003 Chevrolet Avalanche, Silverado, Suburban, Tahoe
2003 GMC Sierra, Yukon, Yukon XL
2003 HUMMER H2
Condition
Some customers may comment that the RKE key fob does not function. This condition may be intermittent.
Cause
RKE key fob becomes unsynchronized with the vehicle.
Correction
To greatly reduce this condition, reprogram the Passenger Door Module with the new service calibration, which was available from Techline starting December 16, 2002 on the TIS2000 version 12.0 or later. This calibration is a electronic calibration and is not available from GMSPO.
After performing the software upgrade, re-synchronize the RKE key fob. Refer to the Transmitter Synchronization procedure in the Keyless Entry sub-section of the Service Manual (SI Document ID # 660745).
Engineering is currently developing a permanent fix. Once this fix is available, this bulletin will be reissued.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Bulletin No.: 03-08-52-001
Date: January, 2003
ADVANCED SERVICE INFORMATION
Subject:
Remote Keyless Entry (RKE) System Inoperative
(Reprogram Passenger Door Module)
Models:
2003 Cadillac Escalade, Escalade EXT
2003 Chevrolet Avalanche, Silverado, Suburban, Tahoe
2003 GMC Sierra, Yukon, Yukon XL
2003 HUMMER H2
Condition
Some customers may comment that the RKE key fob does not function. This condition may be intermittent.
Cause
RKE key fob becomes unsynchronized with the vehicle.
Correction
To greatly reduce this condition, reprogram the Passenger Door Module with the new service calibration, which was available from Techline starting December 16, 2002 on the TIS2000 version 12.0 or later. This calibration is a electronic calibration and is not available from GMSPO.
After performing the software upgrade, re-synchronize the RKE key fob. Refer to the Transmitter Synchronization procedure in the Keyless Entry sub-section of the Service Manual (SI Document ID # 660745).
Engineering is currently developing a permanent fix. Once this fix is available, this bulletin will be reissued.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.