2004 Cadillac CTS Owner's Manual - Page 310

Automatic Transmission Fluid It is not necessary to check the transmission fluid level. A transmission fluid leak is the only reason for fluid loss. If a leak occurs, take your vehicle to the dealership service department and have it repaired as soon as possible. You may also have your fluid level checked by your dealer or service center when you have your oil changed. Change both the fluid and filter every 50,000 miles (83 000 km) if the vehicle is mainly driven under one or more of these conditions: How to Reset the Change Transmission Fluid Message and the Transmission Fluid Indicator (Automatic Transmission) After the transmission fluid has been changed, the Change Trans Fluid message and the transmission fluid life indicator must be reset. To reset the message and indicator, use one of the following procedures: Base Audio System Press the CLR button located to the right of the DIC display to acknowledge the CHANGE TRANS FLUID message. This will clear the message from the display and reset it. To reset the transmission fluid life indicator, use the following steps: 1. Press the up or down arrow on the INFO button located to the right of the DIC display to access the DIC menu. 2. Once the XXX% TRANS FLUID LIFE menu item is highlighted, press and hold the CLR button. The percentage will return to 100, and the transmission fluid life indicator will be reset. 3. Repeat the steps if the percentage does not return to 100. • In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher. • In hilly or mountainous terrain. • When doing frequent trailer towing. • Uses such as found in taxi, police or delivery service. If you do not use your vehicle under any of these conditions, the fluid and filter do not require changing. Notice: We recommend you use only fluid labeled DEXRON®-III, because fluid with that label is made especially for your automatic transmission. Damage caused by fluid other than DEXRON®-III is not covered by your new vehicle warranty. 5-24