CTS 2006-2007, CTS-V 2005-2007, DTS 2006-2007

Engine Identification

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The 2.8L and 3.6L engine Vehicle Identification Number (VIN) Derivative is located in two places on the engine and is a nine digit number stamped or laser etched onto the block at the vehicle assembly plant.

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Fig. 2.8L and 3.6L Engine Vehicle Identification Number (VIN) Derivative location

The 4.6L engine Vehicle Identification Number (VIN) Derivative is located on the right front side of the engine block and is a nine digit number stamped or laser etched onto the engine at the vehicle assembly plant.

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Fig. 4.6L Engine Vehicle Identification Number (VIN) Derivative location

The 5.7L engine Vehicle Identification Number (VIN) is located on the left side rear of the engine block (1 or 2) and is typically a nine digit number stamped or laser-etched onto the engine at the vehicle assembly plant.

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Fig. 5.7L Engine Vehicle Identification Number (VIN) Derivative location

The 6.0L engine Vehicle Identification Number (VIN) is located on the left side rear of the engine block and is typically a 9 digit number stamped or laser-etched onto the engine at the vehicle assembly plant.

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Fig. 6.0L Engine Vehicle Identification Number (VIN) Derivative location

If reading the identification number the following information can be obtained:



The first digit identifies the vehicle division.
 
The second digit is the model year.
 
The third digit identifies the assembly plant.
 
The fourth through ninth digits are the last six digits of the Vehicle Identification Number (VIN).
 

 
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