GM Service Manual Online
For 1990-2009 cars only

The information in this manual pertains specifically to the operation of this vehicle. It also contains your vehicle's scheduled maintenance services. This manual along with your DeVille owner manual will assist you in the proper use and maintenance of your vehicle.

Your DeVille Protection Series is heavier than a regular DeVille due to the armor protection system. Because of this added weight, you will notice this vehicle has certain operating characteristics that are different from a regular DeVille. These include acceleration, braking, cornering, fuel economy, and cruising range on a tank of fuel. You should consider adjusting your driving style with this vehicle to accommodate these differences.

This manual includes the latest information available at the time it was printed. We reserve the right to make changes in the product after that time without notice.

Please keep this manual with the DeVille owner manual in your vehicle, so it will be there if you ever need it while you are on the road. If you sell the vehicle, leave this manual and the DeVille owner manual with it so the new owner can use it.

Litho in U.S.A. ©Copyright General Motors Corporation

Part Number All Rights Reserved


Object Number: 849455  Size: B1

GENERAL MOTORS, GM, the GM Emblem, CADILLAC, the CADILLAC Crest & Wreath, and the name DTS are registered trademarks of General Motors Corporation.


Object Number: 1476218  Size: A1

DTS and DTS Digital Surround are registered trademarks of Digital Theater Systems, Inc.


Object Number: 1868800  Size: B1

Dolby® is manufactured under license from Dolby® Laboratories. Dolby® and the double-D symbol are trademarks of Dolby® Laboratories.

The information in this manual supplements the owner manual. This manual includes the latest information available at the time it was printed. We reserve the right to make changes in the product after that time without notice. For vehicles first sold in Canada, substitute the name General Motors of Canada Limited for Cadillac Motor Car Division whenever it appears in this manual.

Keep this manual with the owner manual in the vehicle, so it will be there if it is needed. If the vehicle is sold, leave this manual in the vehicle.


Object Number: 849455  Size: B1

GENERAL MOTORS, GM, the GM Emblem, CADILLAC, the CADILLAC Crest & Wreath, and the name DTS are registered trademarks of General Motors Corporation.

This manual includes the latest information at the time it was printed. GM reserves the right to make changes after that time without notice. For vehicles first sold in Canada, substitute the name "General Motors of Canada Limited" for Cadillac Motor Car Division wherever it appears in this manual.

This manual describes features that may or may not be on your specific vehicle.

Keep this manual in the vehicle for quick reference.