Workshop Repair and Service Manuals GMC SIERRA
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Memory Seats Description and Operation Seating Position      The memory seat system consists of the followingcomponents: Memory seat moduleDriver door lock/window switchDriver seat adjuster switchDriver seat lumbar switchDriver memory/heated seat switchDriver door lock/window...
Memory Seat Control Module Programming and Setup Seating Position      If the memory seat module is replaced or if the module needsto be reprogrammed, refer toService Programming System (SPS).
Adjustable Pedals Description and Operation (with Memory) Pedal Position      The adjustable pedals system is controlled by the adjustablepedal switch and the memory seat module and operation can occuranytime the transmission is not in reverse. The adjustable pedalsassembly is moved forward or backward...
Adjustable Pedals Description and Operation (w o Memory) Pedal Position      The adjustable pedals system is controlled by the adjustablepedals switch and the adjustable pedals relay and operation canoccur only while the transmission selector lever is in the parkposition. The adjustable pedals assembly...
Digital Radio Receiver Programming and Setup Entertainment Audio      Each of the following service procedures requires programming or setup proceduresto be performed on the digital radio receiver. XM™ Activation Note: In UYS radios, the XM satellite radio (if equipped) is integrated into the...
Radio Audio System Description and Operation Entertainment Audio - part 7      While a device is connected, press the radio CD/AUX button tobegin playing audio from the device over the vehicle speakers. If there is a CD inthe player, pressing the button once will play the CD, pressing again will switchit...
Radio Audio System Description and Operation Entertainment Audio - part 6      A VIN sequence is the last 6 digits of the VIN. Theradio receives this information via serial data. A possible cause of incorrect VINinfo couldbe the radio was originally installed in another vehicle. The radio has the...
Radio Audio System Description and Operation Entertainment Audio - part 5      The integral multi disc CD changer has a shock-absorbing system.Only under extreme operating temperatures or severe shock or vibration should thecompact disc player skip or mute. If the customer travels an abnormally rough...
Radio Audio System Description and Operation Entertainment Audio - part 4      RDS functions will only work with FM broadcast stations that are broadcasting RDSdata.Not all FM Broadcast stations broadcast RDS data or offer all of the RDS services.The information displayed is dependent upon the information...
Radio Audio System Description and Operation Entertainment Audio - part 3      When the speaker is at rest, such as when the volume at a minimumvalue, the voltage applied to each side of the speaker is ? ignition system voltage.This way, the speaker cone can be moved in either direction. Audio Amplifier...
Radio Audio System Description and Operation Entertainment Audio - part 2      The AM band has a lower frequency range than the FM band. These longer wavelengths: Bend around ObstaclesFollow the curvature of the earthMay reflect off the ionosphere (skip) The AM frequencies have longer range due to the...
Radio Audio System Description and Operation Entertainment Audio      The entertainment system on this vehicle may have several different configurationsavailable to it. To determine the specific configuration of the vehicle, please seethe Service Parts ID Label, and refer toRPO Code List. The...
Audio Amplifier Programming and Setup Entertainment Audio      Non GMLAN Amplifier There is no setup procedure for this module. With GMLAN Amplifier (UQA W/Y91) After replacing the amplifier, perform the programingprocedure. Refer toService Programming System (SPS).
Digital Radio Receiver Scan Tool Information Entertainment Audio      Digital Radio Receiver Scan Tool Data Parameters Parameter Expected Value Definition Operating Conditions: Ignition ON/EngineOFF/Radio ON Battery Voltage Varies This displays volts. This is the voltage input...
Radio Frequency Identification (RFID) Entertainment Audio      RFID technology is used in some vehicles for functions such as tire pressure monitoringand ignition system security, as well as in connection with conveniences such as RemoteKeyless Entry-(RKE) transmitters for remote door...
Radio Programming and Setup Entertainment Audio      Each of the following service procedures require programmingor setup procedures to be performed on the radio. Radio Replacement Uplevel and Navigation Radios Setup is completed using the Service Programming System(SPS). Refer...
Radio Scan Tool Information Entertainment Audio      Table 1: Radio Scan Tool Data Parameters Table 2: Radio Scan Tool Output Controls Radio Scan Tool Data Parameters Parameter Expected Value Definition Operating Conditions: Ignition ON Antenna Module...
Radio Speaker Amplifier Scan Tool Information Entertainment Audio      Table 1: Amplifier (Bose) Scan Tool Data List Table 2: Amplifier (Bose) Scan Tool Output Controls Amplifier (Bose) Scan Tool Data List Parameter Expected Value Definition Operating Conditions: Ignition ON...
Cruise Control Description and Operation Cruise Control - part 3      The Cruise Control System will disengage when the ECM detects that a driver overridefunction has been active for approximately 60 seconds. When the Cruise Control Systemhas been disengaged, the ECM sends a GMLAN serial message...
Cruise Control Description and Operation Cruise Control - part 2      The ?-SET switch and the +-RES switch willremain inactive when the BCM has not received the predetermined voltage signal fromthe on/offswitch. Pressing the accelerator pedal, while the Cruise Control System is engaged,will...
Cruise Control Description and Operation Cruise Control      Cruise control is a speed control system that maintains a desired vehicle speed undernormal driving conditions at speeds above 40-km/h (25-mph). Steep grades may causevariations in the selected vehicle speeds. The following...
Object Detection Description and Operation (UD7)      The parking assist system is designed to identify and notifythe driver of an object in the vehicle's path when reversing atspeeds of less than 8-km/h (5-mph). Thedistance and location of the object is determined by four...
Object Detection Description and Operation (UVC)      Rear Vision Camera System Operation (without navigation) The components used in the rear vision camera system are the camera, located at therear of the vehicle, and the inside rearview mirror, which houses the LCD display....