Setting the Clock For Systems With Automatic Tone Control

Perform the following procedure in order to set the clock for the Chevrolet and Oldsmobile vehicle UL0, UN0, UP0:
1. Press and hold HR or MN for two seconds.
2. Press and hold HR until the correct hour appears.
3. AM or PM will appear on the display.
4. Press and hold the MN until the correct minute appears.
5. The clock may be set with the ignition is ON or OFF.
6. The clock symbol will appear on the display in the time set mode.

For a description of the RPO Code(s) shown in this article, refer to the RPO Code List found at Vehicle/Application and ID. Application and ID