NO clock or radio - 1997 Chevrolet Tahoe

Depends on what audio system you have . Base , upscale etc.... You need to look on the RPO code sticker , could be in the glove box , center console , trunk , driver door jam ? RPO - regular production order .

UL0
Radio AM/FM Stereo, Seek/Scan, Auto REV Music Search Cass, Auto Tone, Clock, ETR
UM7
Radio AM/FM Stereo, Seek/Scan, Clock, ETR
UN0
Radio AM/FM Stereo, Seek/Scan, Compact Disc, Auto Tone, Clock, ETR
UN6
Radio AM/FM Stereo, Seek/Scan, Auto Rev Music Search Cass, Clock, ETR
UP0
Radio AM/FM Stereo, Seek/Scan, Auto Rev Music Search Cass, CD, Auto Tone, Clock, ETR

Is your clock part of radio assembly? There is usually a dimmer control for interior lamps, you rotate it to brighten or dim interior lamps--dome--instrument cluster--radio illumination. The same thing should work for the clock. If clock is part of radio assembly, I guess you can remove radio and dig into it, see if you find the wiring for clock illumination.

Did you actually check the radio plug for power, or does the display just not illuminate? I ask because this radio has a little bulb inside that burns out that illuminates the clock, and radio station. You can confirm this by trying to use the radio normally, and trying to 'seek' a station. If you can get it to tune in, it is definitely the bulb. Another way is to shine a nice bright flashlight into the clock face. You should be able to see the stations and clock, that at least will tell you that the radio is working. - Hope this helps =)

There is 2 different radios. With or without rds. Here are the instructions for both.
Setting the Time for Radios with Radio Data Systems (RDS) To set the hour, press the clock button. The clock symbol displays and the hour flashes. Turn the ADJ (adjust) knob to increase or to decrease the hours. To set the minutes, press the clock button again. The minutes. Turn the ADJ knob to increase or to decrease the minutes. The time can be set with the ignition on or off.
To synchronize the time with an FM station broadcasting Radio Data System (RDS) information, press and hold the clock button to enter the clock set mode, then press and hold the clock button for three seconds until UPDATED displays. If the time is not available from the station, NO UPDATE displays.
RDS time is broadcast once a minute. After tuning to an RDS broadcast station, it can take a few minutes for the time to update.
Setting the Time for Radios without Radio Data Systems (RDS) To set the hour, press the clock button. The clock symbol displays and the hour flashes. Turn the ADJ (adjust) knob to increase or to decrease the hours. To set the minutes, press the clock button again. The minutes flash. Turn the ADJ knob to increase or to decrease the minutes. The time can be set with the ignition on or off.

fuse bad.

so easy.

The Kenwood KDC-MP335 is an aftermarket car radio that's available for many cars and trucks. The radio unit comes with a built-in digital clock. If your clock is showing the wrong time, all you need to do is enter the radio's clock-setting mode to correct the time and set the clock.------------------------------------------------------------------------
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Either the fuse for the radio is blown, or the radio is dead. The clock is on a different circuit.

hi margie, your fault lies with the power line feeding both your clock and car radio units. check the fuse of the line feeding your radio/clock section. the fuse box should have the areas clearly marked. also check if the ground connection to radio/clock is not diconnected sumhow. if this advice does not help then it wub advisable for you to consult with nearest auto-elecrician. cheers.

Sorry. The clock, the dome light and the radio are on the same circuit. If the radio works, the clock is bad.

Check your fuse more then likely it blew. Car radio Clock and Cigarette lighter all connected to the same fuse.