My viper alarm 350HV won't lock/unlock the doors when it is cold outside, but it will beep as if it does

notify viper customer service

just unlocking drivers door alarm thinks its been slimmed ---this also works when you use physical key will set alarm off until key into ignition and turn on or use fob to turn off

open the door, turn the key on, press valet switch one time and press it again and hold it until alarm beeps if it dosent beep it means that alarm hasn't read the door open if it beeps press lock on the remote and it should beep again and its will be set. (if the alarm dosent beep you have to put the door trigger wire (green) to ground and repeat steps from beggining

I take help from online websites that have this service like helping in repair some like reliable-store have instant help.. others are a bit slow which I don't prefer... rest is up to us.. U get free manuals

Either the system is in valet or, the chirps have been deleted or, the siren is broken.
If the LED is on solid the system is in valet. open the door, press lock, unlock, lock on the remote to remove valet.
Press and hold the lock button. This activates the car finder/panic. The siren should begin to wail. If it does, the siren works. If it doesn't and all you see is the aprking lights flashing the siren is defective.

I got this free Pdf manual from reliable-store for free and I don't think Ive visited a mechanic or fixya for help for more than 3-4 times out of the 20 times I fixed the chipper in these 4 years

Sorry, but it is my opinion that car alarms are really, really foolish.
Cars are extremely hostile environments for delicate electronics.
Adding alarms is begging for problems that will leave you without a car.
If you lock any valuables in the trunk, out of sight, there is no reason for an alarm. All an alarm will do is either fail and prevent you from driving, or fail and get you a ticket for a false alarm.

the alarm is in valet mode .open a door press lock unlock lock on the remote and it should take it out of valet mode