GM Service Manual Online
For 1990-2009 cars only

Tape Load

The cassette player incorporates a power end load cassette mechanism with an illuminated slot opening. Partially insert the tape through the door in the front of the trim plate. The mechanism completes the loading cycle automatically.

After loading, the cassette player automatically senses the tape cartridge for either a metal tape or for CR02 usage. The player makes the appropriate adjustments and the cassette is ready to play.

EJECT Button

Pressing the EJECT button performs the following functions:

    • Ejects the cassette tape
    • Returns the audio to the radio mode if the unit is ON

The eject function is operative from all modes of cassette operation and while the ignition is in the OFF position.

Fast Reverse Button

The Fast Reverse button is a non-latching momentary contact control that serves a dual function with radio preset number 3. Pressing the Fast Reverse button moves the tape in the reverse direction at a rapid speed until you perform one of the following actions:

    • Press the Fast Reverse button a second time.
    • Press the program button in order to return the unit to the normal play mode.

During rewind, the audio reverts to the radio. If no operator changes occur, rewinding continues until the beginning of the tape is reached. The unit then returns to the play mode. Time of day (TOD) remains displayed and a program arrow blinks while the unit is in the fast reverse mode.

Fast Forward Button

The Fast Forward button is a non-latching momentary contact control that serves a dual function with the radio preset button number 4. Pressing the Fast Forward button moves the tape in the forward direction at a rapid speed until you perform one of the following actions:

    • Press the Fast Forward button a second time.
    • Press the program button in order to return the unit to the normal play mode.

The corresponding program arrow lights while the fast forward mode is selected.

SEEK Button

The SEEK push-button is a rocker type switch which provides seek up or down of tape selections in the direction pressed. On model UN6, the audio system consists of a pair of left/right arrows. A blank spot of 3 seconds duration is required in order for the deck to spot a pause between selections.

    • Pressing the top portion of the rocker, or pressing the right arrow, mutes the audio while the deck searches for the beginning of the next tape selection.
    • Pressing the bottom portion of the rocker, or pressing the left arrow, mutes the audio while the deck searches for the beginning of the current selection being played.

Previous Selection Button (PREV)

The PREV (previous selection) button is a non-latching momentary contact control that serves a dual function with the radio preset button number 1. Pressing the PREV button moves the tape in rewind direction and begins playback at the start of the current selection. If the elapsed time into the current selection is less than 8 seconds, the unit rewinds to the previous selection. A blank spot of 4 seconds duration is required in order for the deck to recognize a pause between selections. The audio is muted during this operation.

Next Selection Button (NEXT)

The NEXT (next selection) button is a non-latching momentary contact control that serves a dual function with the radio preset number 2. Pressing the NEXT button moves the tape in the fast-forward direction and begins playing at the start of the next selection. A blank spot of 4 seconds duration is required in order for the deck to recognize a pause between selections. The audio is muted during this operation.

Side Button

Press the SIDE button while a tape is playing in order to change the side of the tape that is playing.

Source Button

Pressing the SOURCE button, where applicable, allows switching between the radio and the tape. When the tape is active, an arrow is displayed.

Dolby® Noise Reduction

The Dolby® Noise Reduction button, when equipped, is a non-latching momentary contact control that serves a dual function with radio preset 6. Pressing the button in the tape mode switches the Dolby® Noise Reduction off or on. A Dolby® symbol appears in the display while this function is active.

Recall

Pressing the RECALL button displays the current track numbers.

Pressing the button again within 5 seconds displays the length of time that the current track has been playing.

Pressing the button a third time within 5 seconds displays the time of day (TOD).

If successive depressions of this button exceed the 5 second intervals, the display defaults to the TOD.

Clean (CLN) Indicator

The Clean (CLN) indicator message appears on the display when the tape head needs to be cleaned.

Important: The tape player will still play tapes, but you must clean the tape player as soon as possible in order to prevent damage to the tapes and the player.

Press and hold the EJECT button for 5 seconds in order to reset the CLN indicator. The display will show - - - in order to indicate the reset status.