Dodge 2009 Viper - Manual (Page 237)

Then, either disconnect the battery at the negative
terminal or use the “Battery Save Feature” to conserve
battery power. Refer to “Battery Save Feature” under
“Maintenance Procedures” in this section for details.
NOTE: Disconnecting the battery causes the engine
control system to lose memory of some “learned” func-
tions. After reconnecting the battery, the engine may run
rough until the control module “relearns” these func-
tions. Using the Battery Save Feature will prevent the
engine controller from loosing its memory.
CAUTION!
Use care when disconnecting the remote positive
cable. It is connected to the battery and can short out
to any metal on the vehicle. Always tape or wrap the
exposed cable end to prevent electrical shorts.
Check the battery every four to six weeks to ensure that
the voltage is above 12.40 Volts. The voltage will drop
more rapidly in hot temperatures. If battery voltage
drops below 12.40 Volts, follow the battery recharge
procedure in the Service Manual.
NOTE: To help prevent the battery from discharging
during shorter periods of inactivity, perform the follow-
ing:
1. Make sure that the trunk/liftgate, hood, doors, win-
dows, and convertible top are completely closed.
2. Make sure that Remote Keyless Entry (RKE) transmit-
ter is operating and that the battery is good.
3. Make sure that the HOOD, TRUNK/LIFTGATE, and
DOOR switches are in adjustment. Perform the quick
system check, which follows:
Use the remote transmitter to set the alarm. If the alarm
SET light comes on and flashes, the system is operating
MAINTAINING YOUR VEHICLE 235
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