The electrical power management is used to monitor and control the charging system and alert the driver of possible problems within the charging system. The electrical power management system makes the most efficient use of the generator output, improves the battery state-of-charge, extends battery life, and manages system electrical loads.
The load shed operation is a means of reducing electrical loads during a low voltage or low battery state-of-charge condition.
The idle boost operation is a means of improving generator performance during a low voltage or low battery state-of-charge condition.
Each electrical power management function, either idle boost or load shed, is discrete. No two functions are active at the same time. Idle boost is activated in incremental steps, idle boost 1 must be active before idle boost 2 can be active. The criteria used by the body control module (BCM) to regulate electrical power management are outlined below:
Function |
Battery Temperature Calculation |
Battery Voltage Calculation |
Amp-Hour Calculation |
Action Taken |
---|---|---|---|---|
Idle Boost 1 Start |
Less Than −15°C (5°F) |
Less Than 13 V |
— |
First level Idle boost requested |
Idle Boost 1 Start |
— |
— |
Battery has a net loss greater than 0.6 Ah |
First level Idle boost requested |
Idle Boost 1 Start |
— |
Less Than 10.9 V |
— |
First level Idle boost requested |
Idle Boost 1 End |
Greater Than −15°C (5°F) |
Greater Than −12 V |
Battery has a net loss less than 0.2 Ah |
First level Idle boost request cancelled |
Load Shed 1 Start |
— |
— |
Battery has a net loss of 4 Ah |
Rear Defrost, Heated Mirrors, Heated Seats cycled OFF for 20% of their cycle |
Load Shed 1 Start |
— |
Less Than 10.9 V |
— |
Rear Defrost, Heated Mirrors, Heated Seats cycled OFF for 20% of their cycle |
Load Shed 1 End |
— |
Greater Than 12 V |
Battery has a net loss of less than 2 Ah |
Clear Load Shed 1 |
Idle Boost 2 Start |
— |
— |
Battery has a net loss greater than 1.6 Ah |
Second level Idle boost requested |
Idle Boost 2 Start |
— |
Less Than 10.9 V |
— |
Second level Idle boost requested |
Idle Boost 2 End |
— |
Greater Than 12 V |
Battery has a net loss less than 0.8 Ah |
Second level Idle boost request cancelled |
Idle Boost 3 Start |
— |
— |
Battery has a net loss of 10 Ah |
Third level Idle boost requested |
Idle Boost 3 Start |
— |
Less Than 10.9 V |
— |
Third level Idle boost requested |
Idle Boost 3 End |
— |
Greater Than 12 V |
Battery has a net loss of less than 6.0 Ah |
Third level Idle boost request cancelled |
Load Shed 2 Start |
— |
Less Than 10 V |
Battery has a net loss greater than 12 Ah |
Rear Defrost, Heated Mirrors, Heated Seats cycled OFF for 50% of their cycle. The BATTERY SAVER ACTIVE message will be displayed on the DIC |
Load Shed 2 Start |
— |
Less Than 10.9 V |
— |
Rear Defrost, Heated Mirrors, Heated Seats cycled OFF for 50% of their cycle. The BATTERY SAVER ACTIVE message will be displayed on the DIC |
Load Shed 2 End |
— |
Greater Than 12.6 V |
Battery has a net loss of less than 10.5 Ah |
Clear Load Shed 2 |
Load Shed 3 Start |
— |
Less Than 11.9 V |
Battery has a net loss greater than 20 Ah |
Rear Defrost, Heated Mirrors, Heated Seats cycled OFF for 100% of their cycle. The BATTERY SAVER ACTIVE message will be displayed on the DIC |
Load Shed 3 End |
— |
Greater Than 12.6 V |
Battery has a net loss of less than 15 Ah |
Clear Load Shed 3 |
Torque Lock (Automatic Transmission)
If you are parking on a hill and you do not shift the transmission into P (Park)
properly, the weight of the vehicle may put too much force on the parking pawl in
the transmission. You may find it difficult to pull the shift lever out of P (Park).
This is called “torque lock.” To prevent t ...
Ignition Lock Cylinder Replacement
Removal Procedure
Disconnect the battery negative cable. Refer to
Battery Negative Cable Disconnection and Connection.
Remove the upper trim cover and the lower trim cover
from the steering column. Refer to Steering Column
Lower Trim Cover Replacement.
Insert the k ...
Heater Outlet Hose Replacement (LDE, LUW)
Special Tools
BO-38185 Hose Clamp Pliers
For equivalent regional tools, refer to Special Tools.
Removal Procedure
Drain the cooling system. Refer to Cooling System Draining and Filling.
Disengage the heater outlet hose quick connect clip (1) at the heater ...