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The body control module (BCM) The driver information center (DIC) The rear door lock/unlock relay (LBEC) The door lock actuators in each of the doors Door Lock System Controls The power door lock system can be controlled by any of the following: A power door lock or unlock switch activation A keyless entry transmission An automatic door lock function A delay lock function Door lock cylinder switch activation Lockout Prevention Power Door Lock System Operation The front power door lock switches are integral components of the driver door module (DDS) The modules which activate the power lock motors are: The DDS (driver door lock actuator) The PDS (passenger front door lock actuator) The BCM (both rear door lock actuators) The DDS and PDS are directly connected to the respective door lock actuator through the lock The rear passenger doors are controlled by the BCM through the rear door lock/unlock relay
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Vehicle Access - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
unlock relay by providing ground to energize the coil and controls the lock relay by providing Programmable Automatic Door Locks The automatic door lock feature can be programmed to control the door lock system. The When the automatic door lock feature is programmed to control the door lock system, the driver Ignition 1 input is active. All door ajar switch inputs are inactive. Transmission is shifted out of PARK. This automatic door lock function will only occur once per ignition cycle unless, a door ajar Once the automatic door lock feature has locked the doors, the BCM will then unlock all the Lockout Prevention This feature prevents the locking of the driver door if the ignition key is left in the ignition lock Delayed Locking Operation With any door open and a door lock switch is activated in the lock position, the driver door
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Vehicle Access - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
overridden by activating the door lock switch a second time and the doors will lock even with a
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Vehicle Access - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
2008 DRIVELINE/AXLE Propeller Shaft - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado SPECIFICATIONS FASTENER TIGHTENING SPECIFICATIONS SEALERS, ADHESIVES, AND LUBRICANTS COMPONENT LOCATOR DRIVELINE DISASSEMBLED VIEWS Application Specification Metric English Center Bearing Mounting Bolt 40 N.m 30 lb ft Yoke Retainer Bolts 25 N.m 18 lb ft Application Type of Material GM Part Number Propeller Shaft Splines (Front Propeller Lubricant 12345879 or equivalent meeting GM Specification 9985830
2008 Chevrolet Silverado 1500 2008 DRIVELINE/AXLE Propeller Shaft - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
2008 Chevrolet Silverado 1500 2008 DRIVELINE/AXLE Propeller Shaft - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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