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 MANUALSCHEVROLET2008SILVERADO 1500 2WD V8-6.0LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSRECALL - REPROGRAM ENGINE CONTROL MODULEOWNER LETTER
2008 Chevrolet Silverado 1500 2WD V8-6.0L
Owner Letter
2008 Chevrolet Silverado 1500 2WD V8-6.0LSECTION Owner Letter
Owner Letter
July 2011
Dear General Motors Customer:
This notice is sent to inform you that General Motors is conducting a voluntary emission recall that includes your vehicle.
Reason For This Recall: General Motors has decided to conduct a voluntary emission recall involving certain 2008 model year Chevrolet Tahoe vehicles equipped with 5.3L engine, and Chevrolet Silverado and GMC Sierra vehicles equipped with a 6.0L engine. Our records indicate that an incorrect On-Board Diagnostic System calibration that was made available for certain vehicles was installed in your vehicle's Engine Control Module (ECM) during a past servicing event. This calibration should be replaced with the correct calibration to ensure the On-Board Diagnostic System properly monitors your vehicle's emission control system.
What Will Be Done: Your GM dealer will reprogram the ECM. This service will be performed for you atno charge. Eligibility for the ECM reprogramming will not be denied solely due to your engine having non-GM parts or repairs performed by outlets other than GM franchised dealers.
How Long Will The Repair Take? Because of service scheduling requirements, it is likely that your dealer will need your vehicle longer than the actual reprogramming time of approximately 25 minutes.
What You Should Do: Please contact your GM dealer as soon as possible to arrange a service date. Instructions for making this correction have been sent to your dealer. Please ask your dealer if you wish to know how much time will be needed to schedule, process, and repair your vehicle.
If you have any questions or need any assistance, just contact your dealer or the appropriate Customer Assistance Center at the number listed below.
Courtesy Transportation: If your vehicle is within the New Vehicle Limited Warranty, your dealer may provide you with shuttle service or some other form of courtesy transportation while your vehicle is at the dealership for this repair. Please refer to your Owner Manual and your dealer for details on Courtesy Transportation.
Emission Warranty Information: In order to assure your full protection under the emission warranty provisions, it is recommended that you have your vehicle serviced as soon as possible. Failure to do so could legally be determined as lack of proper maintenance of your vehicle. Also, your vehicle may fail a state or local emission inspection or I/M smog check test if this recall is not performed.
IMPORTANT MESSAGE FOR CALIFORNIA RESIDENTS
The California Air Resources Board (CARB) requires vehicle emission recalls be completed prior to California registration renewal. Uncorrected emission recalls will result in the inability to renew your California vehicle registration.
At the time of emission recall completion, your California dealer will issue a "Proof of Correction Certificate". Keep this certificate and, if required, present it to the Department of Motor Vehicles when renewing your California registration as proof of recall completion.
We are sorry to cause you this inconvenience; however, we have taken this action in the interest of your continued satisfaction with our products.
Jim Moloney
General Director,
Customer and Relationship Services
11167
July 2011
Dear General Motors Customer:
This notice is sent to inform you that General Motors is conducting a voluntary emission recall that includes your vehicle.
Reason For This Recall: General Motors has decided to conduct a voluntary emission recall involving certain 2008 model year Chevrolet Tahoe vehicles equipped with 5.3L engine, and Chevrolet Silverado and GMC Sierra vehicles equipped with a 6.0L engine. Our records indicate that an incorrect On-Board Diagnostic System calibration that was made available for certain vehicles was installed in your vehicle's Engine Control Module (ECM) during a past servicing event. This calibration should be replaced with the correct calibration to ensure the On-Board Diagnostic System properly monitors your vehicle's emission control system.
What Will Be Done: Your GM dealer will reprogram the ECM. This service will be performed for you atno charge. Eligibility for the ECM reprogramming will not be denied solely due to your engine having non-GM parts or repairs performed by outlets other than GM franchised dealers.
How Long Will The Repair Take? Because of service scheduling requirements, it is likely that your dealer will need your vehicle longer than the actual reprogramming time of approximately 25 minutes.
What You Should Do: Please contact your GM dealer as soon as possible to arrange a service date. Instructions for making this correction have been sent to your dealer. Please ask your dealer if you wish to know how much time will be needed to schedule, process, and repair your vehicle.
If you have any questions or need any assistance, just contact your dealer or the appropriate Customer Assistance Center at the number listed below.
Courtesy Transportation: If your vehicle is within the New Vehicle Limited Warranty, your dealer may provide you with shuttle service or some other form of courtesy transportation while your vehicle is at the dealership for this repair. Please refer to your Owner Manual and your dealer for details on Courtesy Transportation.
Emission Warranty Information: In order to assure your full protection under the emission warranty provisions, it is recommended that you have your vehicle serviced as soon as possible. Failure to do so could legally be determined as lack of proper maintenance of your vehicle. Also, your vehicle may fail a state or local emission inspection or I/M smog check test if this recall is not performed.
IMPORTANT MESSAGE FOR CALIFORNIA RESIDENTS
The California Air Resources Board (CARB) requires vehicle emission recalls be completed prior to California registration renewal. Uncorrected emission recalls will result in the inability to renew your California vehicle registration.
At the time of emission recall completion, your California dealer will issue a "Proof of Correction Certificate". Keep this certificate and, if required, present it to the Department of Motor Vehicles when renewing your California registration as proof of recall completion.
We are sorry to cause you this inconvenience; however, we have taken this action in the interest of your continued satisfaction with our products.
Jim Moloney
General Director,
Customer and Relationship Services
11167
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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.