You can try resetting the remote control to default settings.
Resetting the Remote Control To Factory Default Settings
a. Press and hold the AT&T key on the remote control.
b. Without releasing the AT&T key, press and hold the OK key.
c. Release both the AT&T key and the OK key.
d. All four mode keys will flash twice to indicate programming mode.
e. Enter programming code 900 by pressing the number keys on the remote control.The AT&T key will flash three times indicating the code was successfully entered and the remote has been reset to the default settings.
After that, program the remote for the TV and check if it helps.
Programming Remote control for Television, Similarly, if using a different device use the associated mode key instead of TV. eg. (DVD/AUX)
a. Press and hold the TV key on the remote control.
b. Without releasing the TV key, press and hold the OK key.
c. Release both the TV key and the OK key.
d. All four mode keys will flash twice to indicate programming mode.
e. Enter the code matching the model of television. Attempt the Power and Volume functions to ensure the correct code has been entered. If not working repeat the process with the next code.
Here are the codes for VIZIO standard TV's:
Vizio Television 1343, 1018, 1004, 0178, 0502, 0627, 1756, 1758, 0128, 0117, 1017, 1078, 0030, 0056
VIZIO HDTV 1004
Here's a tip: If you have a new TV, check the codes from right to left, if it's old, from left to right.
Hope this helps!
