What is the E-AT button for - 1994 Nissan Quest

Turn [SEL] button to select CLOCK ADJ.

Press the [SEL] button. The clock adjustment mode is activated. Turn [SEL] button to display the item to be selected for adjustment. Hours, minutes or exact hour will be switched each time the button is turned.

Press the [SEEK /FAST ] button. [SEEK ] button: Turns the time forward. [FAST ] button: Turns the time back. To set the clock to 0 minutes, 0 seconds (an exact hour), press the [SEEK /FAST ] button.

For example: At 3:29: Pressing the [SEEK /FAST ] button returns to 3:00. At 3:30: Pressing the [SEEK /FAST ] button advances to 4:00.

Press the [RTN] button. At this time, other adjustments can also be made in Function Mode. 6 Press the [FUNC] button to exit Function Mode.

Also, you can read the manual here:
http://www.eclipse-web.com/us/download/manual/manual/pdf/CD3414(1-1455A).pdf

It sounds like a faulty button. Try and bridge the wires on the button and see if that works. Failing that I would suggest you get a new button

If you've entered a bad code a couple times, you need to wait an hour while the radio and ignition are on. Then, turn on the radio, SAFE should be displayed. Then Press the FM1 button and hold it down, then while holding down the FM1 button, press and hold the AM buttons so that both buttons are held down simultaneously. Release the buttons. Now enter the correct code using the radio pre-set station buttons (one through 4). Button 1 changes the first digit in the code "1"000, Button "two" changes the second digit in the code 1"0" "three" 00, button changes the third digit, button 4 changes the last digit in the code. In most cases the first digit is a 1 and won't need to be changed. You push each pre-set station button multiple times to step through the digits (1-9) to get the correct code displayed.
Code 1246 would entered by pushing button "2" two times, pushing button 3 four times, and pushing button 4, six times.

After entering the correct security code, push and hold down the FM1 and AM button simultaneously as before until SAFE is displayed, then release the 2 buttons, and now the radio should now work.

how to set the time on a 1993 oldsmobile cutlas ciera stock radio. with the car started or the key in the on possition (Forward) make sure the radio is off you should still see the time on the radio. on the right side of the radio you will see a button that says set hit it once and under the time you will see buttons scan seek four more buttons then the button set the first button after seek is the hour and the second button after seek is the minutes . Setting the buttons for channel memorry is the same for exsample with radio on tune to station you want to hear then hit set button then one of the four buttons after seek button make sure you hit set button first before pushing button or you will find yourself tunning to the station again I hope this helps

SWITCH IGNITION ON.ENGINE OFF. PRESS AND RELEASE SETUP BUTTON.PRESS SELECT TO BEGIN SYSTEM CHECK IS DISPLAYED. PRESS AND RELEASE SELECT BUTTON WHEN OIL LIFE PRESS RESET IF NEW OIL IS DISPLAYED PRESS AND HOLD RESET BUTTON FOR 2 SECONDS. OIL LIFE XXX% HOLD RESET IF NEW OIL IS DISPLAYED. PRESS AND HOLD RESET BUTTON FOR 3 SECONDS UNTIL OIL LIFE START VALUE SET TO 100 % IS DISPLAYED. SWITCH OFF IGNITION.------- NOTE THE SETUP BUTTON AND SELECT BUTTON ON STEERING WHEEL CONTROL PAD THE RESET BUTTON IS ON DASH THERE IS FOUR LITTLE BUTTONS ON DASH SECOND BUTTON IS THE RESET BUTTON.

1. Switch ignition OFF.
2. Press and hold button "A" - fig. 1 or fig. 2.
3. Turn ignition key to position "I".
4. After 5 seconds the words "OIL SERVICE" or "INSPECTION" are shown together with the message "reset" or "re".
5. Release button "A". Press and hold button "A". After a futher 5 seconds the message "reset" starts to flash.
6. Release button "A". Press and release button "A" again.
7. The new service interval is now displayed.
8. Press and release button "A". The message "END SIA" is now displayed.
8. Switch ignition OFF.

Fig.1


Fig.2

Switch ignition ON. Press brake pedal. Press button [A]. RHD - 100248. LHD - 100254. Turn button [B], until the message "System Settings" is displayed. Press button [B]. Turn button [B] until the message "Service Info" is displayed. Press button [B]. The message "% left of oil quality/days to service" is displayed. Turn button [B] until the message "Reset Service Ind." is displayed. Press button [B]. The message "Are you sure? Yes or No" is displayed. Turn button [B] to select "Yes". Press button [B]. The message "service parameters updated" is displayed. Switch ignition OFF.
BUTTON B IS ROUND PUSH/TURN BUTTON
BUTTON A IS TWO DOWN FROM THIS

There are three buttons, let's call them 1, 2, and 3, from left to right.


Clock
Time setting

A. 12 AM, PM or 24.00 h
With the clock in the time readout mode, keep
button (2) depressed for 4 seconds -12 AM, PM
or 24.00 flashing. After pushing button (1), either
a 12-hour (AM + PM) or a 24-hour setting
program can be selected. If you only want to
change the display mode, push button (3). The
clock then returns to its normal timekeeping
function.

B. Hours
Push button (2) a second time - hour display
flashes. Set hour by pushing button (1). After
pushing button (3)*, the clock returns to the time
readout mode with new hour setting.

C. Minutes
Push button (2) once more - minute display
flashes. Set minute by pushing button (1). Upon
pushing button (3)*, the clock is started -
accurate to within 1 second.

Stop watch function
The stop watch can only be set in motion if the
clock is in its normal timekeeping mode and not
during setting operations.
A. Push button (3) - 00:00 display appears;
B. Push button (1) - stop watch is on;
C. Push button (1) a second time - watch stops.
(Additional times can be added by pushing button
(1) again - stop watch keeps running. Push button
(1) once more to stop timing.)
D. Push button (2) - 00:00 display appears;
E. Push button (3) - normal timekeeping mode.

If button (3) is pushed during operation A and
B, the setting procedure must be restarted
(push button (2)).

Using the station buttons , left to right , 1st button is 1000's, 2nd button 100's, 3rd is 10's, and 4th button 1's, push each button until desired number from each button , once you have the number in the display it should unlock, it might be necessary to push the power button once the code it displayed