Quality and affordability is just a click away! You can buy this genuine OEM Computer Control Module at a fraction of the dealer's price. It fits the 2003 CTS and more. Enjoy fast, friendly service that you can rely on. Donor Vehicle Year 2003 Model CTS Vin 1G6DM57NX30109903 Stock Number 2008 Notes LR DOOR MODUAL Interchange # 591-07073 Placement This part will fit these makes and models: CTS 03 Multifunction; (door lock and window), rear door, opt DR5 CTS 04-05 Multifunction; (door lock and window), rear door, (opt DR5) DEVILLE 04-05 Multifunction; rear door SRX 04 Multifunction; (door lock and window), rear door, opt DR2 SRX 04 Multifunction; (door lock and window), rear door, opt DR5 SRX 05 Multifunction; (door lock and window), rear door, opt DR4 CTS 2003 Why buy from Overdrive Auto Parts? You'll get your parts FAST! 60 Day Warranty Save big on genuine OEM parts Outstanding customer service Packaged with high quality packing material Free shipping on all orders