Load Shed System Description & Operation
Load Shed System Description and Operation
| Load Shed Level | Affected Systems | Action Taken |
|---|---|---|
| Load-Shed Level 0 | No systems affected | Normal operation |
| Load-Shed Level 1 | Heated Outside Rear View Mirrors, Heated Rear Window/Rear Window Defrost, Heated Seats | Cycled at 80% duty cycle, OFF for 4 of every 20 second cycle. Indicator and timer not affected. |
| Front Automatic HVAC | Reduce blower speed to 80% of current setting if the HVAC is not in the Defrost mode. The HVAC controller uses a ramping program to make the change invisible to the operator. No action is taken if the HVAC system is in Defrost. | |
| Rear Automatic HVAC | Turn OFF blower. The operator must turn ON system when load-shed level is exited. System will not respond to operator input until current load-shed level is exited. | |
| Message Center, Instrument Cluster | No messages or indicators are displayed. Data (DPID) indicating that the Load-Shed 1 was entered is stored and may be accessed with a scan tool. DPID will reset after 50 ignition switch cycles with no repeated load-shed 1 action or with a battery disconnection. | |
| Load-Shed Level 2 | Heated Outside Rear View Mirrors, Heated Rear Window/Rear Window Defrost, Heated Seats | Turned OFF. Indicator and timer also turned OFF. The operator must turn ON system when load-shed level is exited. System will not respond to operator input until current load-shed level is exited. This system will respond to only one Load-Shed Level 2 command per ignition switch cycle. |
| Front Automatic HVAC | Blower turned OFF if the HVAC system is not in the Defrost mode. No action is taken if the HVAC system is in the Defrost mode. Operator may over-ride by manually turning the blower ON. This system will respond to only one Load-Shed 2 command per ignition switch cycle. | |
| Rear Automatic HVAC | Rear HVAC blower remains OFF. The operator must turn ON system when load-shed level is exited. System will not respond to operator input until current load-shed level is exited. This system will respond to only one Load-Shed Level 2 command per ignition switch cycle. | |
| Message Center, Instrument Cluster | "Battery Saver Action" message is displayed. Battery/Charging System Failure icon is illuminated. Chime may be activated constantly until the load-shed level is exited. Data (DPID) indicating that the Load-Shed Level 2 was entered is stored and may be accessed with a scan tool. DPID will reset after 50 ignition switch cycles with no repeated Load-Shed 2 actions or with a battery disconnection. |