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.
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HOMESERVICE MANUALSBUICK2005RAINIER AWD L6-4.2L VIN SREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULETECHNICAL SERVICE BULLETINSRECALLSCAMPAIGN - PCM REPLACEMENT
2005 Buick Rainier AWD L6-4.2L VIN S
Campaign - PCM Replacement
2005 Buick Rainier AWD L6-4.2L VIN SSECTION Campaign - PCM Replacement
Inventory Upgrade - PCM Nonconformity-Replace PCM # 04109 - (Dec 15, 2004)
Models:
Certain 2005 Chevrolet TrailBlazer; GMC Envoy; Buick Rainier with Inline 6 Cylinder (RPO LL8) Engine
This correction should be performed on all vehicles currently in your inventory that are included in the Administrative Message (U.S.) VIN list prior to sale or delivery.
Condition
The Powertrain Control Module (PCM) in these vehicles may not have been manufactured in conformance to GM specifications and vehicles may exhibit symptoms such as Malfunction Indicator Light illumination.
Correction
Dealers are to replace the PCM.
Refer to the appropriate service information to replace the vehicle PCM
The replaced PCM should be scrapped at your dealership following the guidelines in the GM Policy and Procedures Manual.
Parts Information
Warranty Information
US Dealers
This correction should be performed on all vehicles currently in your inventory that are included in the Administrative Message (U.S.) VIN list shown prior to sale or delivery.
Disclaimer
Models:
Certain 2005 Chevrolet TrailBlazer; GMC Envoy; Buick Rainier with Inline 6 Cylinder (RPO LL8) Engine
This correction should be performed on all vehicles currently in your inventory that are included in the Administrative Message (U.S.) VIN list prior to sale or delivery.
Condition
The Powertrain Control Module (PCM) in these vehicles may not have been manufactured in conformance to GM specifications and vehicles may exhibit symptoms such as Malfunction Indicator Light illumination.
Correction
Dealers are to replace the PCM.
Refer to the appropriate service information to replace the vehicle PCM
The replaced PCM should be scrapped at your dealership following the guidelines in the GM Policy and Procedures Manual.
Parts Information
Warranty Information
US Dealers
This correction should be performed on all vehicles currently in your inventory that are included in the Administrative Message (U.S.) VIN list shown prior to sale or delivery.
Disclaimer
RENDER: 1.0x
NO RELATED
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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.