Dodge 2008 Viper - Manual (Page 211)

Battery Save Feature
The Battery Save feature conserves battery power when
storing the vehicle. It allows for up to 3 months of storage
time without losing radio and engine controller memory.
Using this feature is an alternative to disconnecting the
battery.
NOTE: This vehicle is designed to sit in storage with a
fully charged battery for up to 30 days. If you plan to
store the vehicle longer than 30 days, we recommend
doing one of the following:
• Disconnect the battery.
• Use the battery charger.
• Put the vehicle into Battery Save mode (3-month
charge).
To Activate the Battery Save Feature:
1. Insert the key into the ignition switch.
2. Cycle the ignition switch from OFF/LOCK to ACC
four times. Leave the switch in the OFF/LOCK position
after the fourth cycle.
3. Push the driver’s Power Door Lock switch in the UP
direction. A single chime will sound and the horn will
chirp to indicate that the process has begun.
Ignition Key Positions
210 MAINTAINING YOUR VEHICLE