See also:

Battery Load Management
The vehicle has Electric Power Management (EPM) that estimates the battery's temperature and state of charge. It then adjusts the voltage for best performance and extended life of the battery. ...

Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF in each shift lever position. ○ The ignition should turn to LOCK/OFF only when the shift lever is in P (Park ...

2008 GMC Yukon Review
The 2007 GMC Yukon — along with the Cadillac Escalade and Chevrolet Tahoe — is one of three completely redesigned full-size SUVs from General Motors. I've driven all three, and with the except ...