GMC Sierra Service Bulletins

10,018 manufacturer communications on file.

• March 30, 2016•Document ID: 10112831

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  00-03-10-002J

  Date Added:

  August 15, 2017

  Manufacturer:

  GMC

  Summary

  This informational bulletin provides information on chemical staining, pitting, and corrosion on wheels and the proper cleaners to use to fix the conditions due to multiple causes.

  Associated Products (535)

  2017 Buick Cascada2017 Buick Enclave2017 Buick Encore2017 Buick Envision2017 Buick LaCrosse2017 Buick Regal2017 Buick Verano2017 Cadillac ATS2017 Cadillac CT62017 Cadillac CTS2017 Cadillac ELR2017 Cadillac Escalade2017 Cadillac Escalade ESV2017 Cadillac XT52017 Cadillac XTS2017 Chevrolet Bolt EV2017 Chevrolet Camaro2017 Chevrolet Caprice2017 Chevrolet Colorado2017 Chevrolet Corvette+ 515 more
  Associated Documents

  • DownloadMC-10112831-0001.pdf↗
• March 30, 2016•Document ID: 10112830

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY

  Mfr Comm. #:

  16-NA-100

  Date Added:

  August 15, 2017

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides a procedure to replace the fuel tank to correct a condition of the fuel tank being hard to fill due to a mold flashing issue within the tank.

  Associated Products (2)

  2015 Chevrolet Silverado2015 GMC Sierra
  Associated Documents

  • DownloadMC-10112830-0001.pdf↗
• March 30, 2016•Document ID: 10090435

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ENGINE

  Mfr Comm. #:

  35460

  Date Added:

  February 3, 2017

  Manufacturer:

  GMC

  Summary

  35460 - CUSTOMER SATISFACTION PROGRAM. SOME VEHICLES EQUIPPED WITH A DURAMAX DIESEL ENGINE (RPO LML) MAY HAVE A CONDITION IN WHICH THE INTAKE AIR HEATER’S FIELD-EFFECT TRANSISTOR COULD GENERATE EXCESSIVE HEAT IF THE SYSTEM VOLTAGE EXCEEDS 13.5V. THIS HEAT CAN CAUSE A SHORT CIRCUIT IN THE TRANSISTOR AND, IN RARE CASES, A FIRE IN THE VEHICLE’S ENGINE COMPARTMENT. DEALERS ARE TO REPROGRAM AND UPDATE THE GLOW-PLUG CONTROL MODULE WITH NEW SOFTWARE WHICH LIMITS THE INTAKE AIR HEATER INPUT VOLTAGE TO 13.5V.

  Associated Products (2)

  2015 Chevrolet Silverado2015 GMC Sierra
  Associated Documents

  • DownloadMC-10090435-0001.pdf↗
• March 30, 2016•Document ID: 10060082

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  SB-111435

  Date Added:

  March 16, 2016

  Manufacturer:

  CHEVROLET

  Summary

  SUMMARY TO BE PROVIDED ON A FUTURE DATE.

  Associated Products (2)

  2014 Chevrolet Silverado2014 GMC Sierra
  Associated Documents

  • DownloadMC-10060082-0001.pdf↗
• March 29, 2016•Document ID: 10113963

  Service Bulletin/Repair Instructions
  EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; FUEL SYSTEM, GASOLINE

  Mfr Comm. #:

  PIP5371A

  Date Added:

  August 15, 2017

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician about the multiple alternative gaseous fuel vehicles General Motors offers. Chevrolet Express and GMC Savana vans 2011 through 2016 offered a dedicated Compressed Natural Gas system. Refer to the latest version of PI0417 for more information. Chevrolet Express and GMC Savana 3500, 4500 Cutaway Vans 2012 through 2016 offered a dedicated Liquefied Petroleum Gas system. Refer to the latest version of PI0722 for more information. Chevrolet Silverado and GMC Sierra's 2013 through 2016 offered a combination of Compressed Natural Gas and Gasoline fuel systems. Refer to the latest version of PI0834 for more information. Chevrolet Impala's 2015 through 2016 offered a combination of Compressed Natural Gas and Gasoline fuel systems. Refer to the latest version of PI1330 for more information. The Compressed Natural Gas fuel system operates under high pressure up to 3600 psi. The Liquefied Petroleum Gas fuel system operates under high pressure up to 300 psi. Service and repair of this system should only be performed by a General Motors trained alternative fuels service technician with the proper knowledge and tools.

  Associated Products (25)

  2016 Chevrolet Express2016 Chevrolet Impala2016 Chevrolet Silverado2016 GMC Sierra2015 Chevrolet Express2015 Chevrolet Impala2015 Chevrolet Silverado2015 GMC Savana2015 GMC Sierra2014 Chevrolet Express2014 Chevrolet Silverado2014 GMC Savana2014 GMC Sierra2013 Chevrolet Express2013 Chevrolet Silverado2013 GMC Savana2013 GMC Sierra2012 Chevrolet Express2012 Chevrolet Silverado2012 GMC Savana+ 5 more
  Associated Documents

  • DownloadMC-10113963-0001.pdf↗
• March 29, 2016•Document ID: 10112829

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

  Mfr Comm. #:

  PI0572C

  Date Added:

  August 15, 2017

  Manufacturer:

  GMC

  Summary

  This preliminary informational bulletin provides information on GM is implementing a new service strategy that uses a set of universal coaxial repair kits to service vehicles. This only applies to cable used for high frequency signals, such as cellular (OnStar®), satellite radio (XM) and GPS (navigation). The kits do NOT apply to the AM/FM cables.

  Associated Products (440)

  2016 Buick Cascada2016 Buick Enclave2016 Buick Encore2016 Buick Envision2016 Buick LaCrosse2016 Buick Regal2016 Buick Verano2016 Cadillac ATS2016 Cadillac CT62016 Cadillac CTS2016 Cadillac ELR2016 Cadillac Escalade2016 Cadillac Escalade ESV2016 Cadillac SRX2016 Cadillac XTS2016 Chevrolet Camaro2016 Chevrolet Caprice2016 Chevrolet City Express2016 Chevrolet Colorado2016 Chevrolet Corvette+ 420 more
  Associated Documents

  • DownloadMC-10112829-0001.pdf↗
• March 24, 2016•Document ID: 10113960

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:SOFTWARE

  Mfr Comm. #:

  PIT5438B

  Date Added:

  August 15, 2017

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that have a click, rattle or a squeak nose coming from the dash. Technician will use Service Information to locate the Accessory AC and DC Power Control Module located to the right of the steering column. Remove the power inverter module and apply two sided tape to the module bracket to insulate it from the mount. The instrument panel accessory bezel will also need to be removed. Apply flocking tape to the instrument panel accessory bezel retainers. Also the instrument panel extension will need to be removed. Apply foam tape around connectors located under grill to prevent them from rattling on grill. Apply flocking tape to the instrument panel extension retainers and apply a strip of foam tape along the edge of the grill to isolate the grill from the dash.

  Associated Products (18)

  2016 Cadillac Escalade2016 Cadillac Escalade ESV2016 Chevrolet Silverado2016 Chevrolet Suburban2016 Chevrolet Tahoe2016 GMC Sierra2016 GMC Yukon2016 GMC Yukon XL2015 Cadillac Escalade2015 Cadillac Escalade ESV2015 Chevrolet Silverado2015 Chevrolet Suburban2015 Chevrolet Tahoe2015 GMC Sierra2015 GMC Yukon2015 GMC Yukon XL2014 Chevrolet Silverado2014 GMC Sierra
  Associated Documents

  • DownloadMC-10113960-0001.pdf↗
• March 24, 2016•Document ID: 10113959

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5503

  Date Added:

  August 15, 2017

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician the steps to diagnose and repair vehicle with a Service Charging System message or Service Engine Soon Malfunction Indicator Lamp and the Engine Control Module may have set a P0621 and/or P0622. These concerns could be caused by the generator wiring harness rubbing on the Air Conditioning compressor line and shorting the circuits. Technician will inspect the generator wiring harness for chaffing and repair as necessary. Install additional conduit to protect the wiring harness from future issues.

  Associated Products (8)

  2014 Chevrolet Silverado2014 GMC Sierra2013 Chevrolet Silverado2013 GMC Sierra2012 Chevrolet Silverado2012 GMC Sierra2011 Chevrolet Silverado2011 GMC Sierra
  Associated Documents

  • DownloadMC-10113959-0001.pdf↗
• March 24, 2016•Document ID: 10112821

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PI0360F

  Date Added:

  August 15, 2017

  Manufacturer:

  GMC

  Summary

  This preliminary informational bulletin provides information on GM Accessory Remote start not working with onstars remotelink phone applications

  Associated Products (431)

  2017 Buick Cascada2017 Buick Enclave2017 Buick Encore2017 Buick Envision2017 Buick LaCrosse2017 Buick Regal2017 Buick Verano2017 Cadillac ATS2017 Cadillac CT62017 Cadillac CTS2017 Cadillac ELR2017 Cadillac Escalade2017 Cadillac Escalade ESV2017 Cadillac XT52017 Cadillac XTS2017 Chevrolet Bolt EV2017 Chevrolet Camaro2017 Chevrolet Caprice2017 Chevrolet Colorado2017 Chevrolet Corvette+ 411 more
  Associated Documents

  • DownloadMC-10112821-0001.pdf↗
• March 23, 2016•Document ID: 10112820

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  PI1250D

  Date Added:

  August 15, 2017

  Manufacturer:

  CADILLAC

  Summary

  This preliminat informational bulletin provides information on the proactive alert advanced diagnostics. Proactive Alert monitors the Engine Cranking system and the Fuel Delivery system and if either one of these monitored systems triggers certain performance issues, specific Customer and Dealer Communication are sent.

  Associated Products (13)

  2016 Cadillac Escalade2016 Cadillac Escalade ESV2016 Chevrolet Corvette2016 Chevrolet Equinox2016 Chevrolet Silverado2016 Chevrolet Suburban2016 Chevrolet Tahoe2016 GMC Sierra2016 GMC Terrain2016 GMC Yukon2016 GMC Yukon XL2015 Chevrolet Equinox2015 GMC Terrain
  Associated Documents

  • DownloadMC-10112820-0001.pdf↗
• March 23, 2016•Document ID: 10112819

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  09-06-04-026L

  Date Added:

  August 15, 2017

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides information on Identifying Non-GM (Aftermarket) Engine Calibrations for Gasoline Engines Using Tech 2® or GDS 2 (U.S. and Canada)

  Associated Products (180)

  2016 Buick Cascada2016 Buick Enclave2016 Buick Encore2016 Buick Envision2016 Buick LaCrosse2016 Buick Regal2016 Buick Verano2016 Cadillac ATS2016 Cadillac CT62016 Cadillac CTS2016 Cadillac ELR2016 Cadillac Escalade2016 Cadillac Escalade ESV2016 Cadillac SRX2016 Cadillac XTS2016 Chevrolet Camaro2016 Chevrolet Caprice2016 Chevrolet City Express2016 Chevrolet Colorado2016 Chevrolet Cruze+ 160 more
  Associated Documents

  • DownloadMC-10112819-0001.pdf↗
• March 23, 2016•Document ID: 10112817

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  10-06-05-002C

  Date Added:

  August 15, 2017

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides information on Clean Exhaust Filter See Owners Manual Now or Cleaning Exhaust Filter Keep Driving Until Message is Cleared Message Displayed on DIC, DTC P2463 May Be Set

  Associated Products (44)

  2016 Chevrolet Colorado2016 Chevrolet Express2016 Chevrolet Silverado2016 GMC Canyon2016 GMC Savana2016 GMC Sierra2015 Chevrolet Cruze2015 Chevrolet Express2015 Chevrolet Silverado2015 GMC Savana2015 GMC Sierra2014 Chevrolet Cruze2014 Chevrolet Express2014 Chevrolet Silverado2014 GMC Savana2014 GMC Sierra2013 Chevrolet Express2013 Chevrolet Silverado2013 GMC Savana2013 GMC Sierra+ 24 more
  Associated Documents

  • DownloadMC-10112817-0001.pdf↗
• March 22, 2016•Document ID: 10113957

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:SOFTWARE

  Mfr Comm. #:

  PIC6187

  Date Added:

  August 15, 2017

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary Information communication advises the technician that some vehicles intermittently the favorites saved from a USB drive or SD card are grayed out and not selectable. Please communicate to the customer that we apologize for this inconvenience and that General Motors is currently evaluating this concern.

  Associated Products (60)

  2016 Buick LaCrosse2016 Buick Regal2016 Cadillac ATS2016 Cadillac CTS2016 Cadillac ELR2016 Cadillac Escalade2016 Cadillac Escalade ESV2016 Cadillac SRX2016 Cadillac XTS2016 Chevrolet Camaro2016 Chevrolet Corvette2016 Chevrolet Impala2016 Chevrolet Malibu2016 Chevrolet Silverado2016 Chevrolet Suburban2016 Chevrolet Tahoe2016 Chevrolet Volt2016 GMC Sierra2016 GMC Yukon2016 GMC Yukon XL+ 40 more
  Associated Documents

  • DownloadMC-10113957-0001.pdf↗
• March 22, 2016•Document ID: 10113956

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

  Mfr Comm. #:

  PIC6186

  Date Added:

  August 15, 2017

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication advises the technician that some vehicles may have a radio that turns on unwanted at start up. If the radio was shut off before the vehicle was shut off and at start up the radio turns on, please communicate to the customer that we apologize for this inconvenience, and that General Motors is working on a solution for this concern.

  Associated Products (22)

  2016 Buick LaCrosse2016 Buick Regal2016 Cadillac ATS2016 Cadillac CT62016 Cadillac CTS2016 Cadillac ELR2016 Cadillac Escalade2016 Cadillac Escalade ESV2016 Cadillac XTS2016 Chevrolet Camaro2016 Chevrolet Colorado2016 Chevrolet Corvette2016 Chevrolet Impala2016 Chevrolet Malibu2016 Chevrolet Silverado2016 Chevrolet Suburban2016 Chevrolet Tahoe2016 Chevrolet Volt2016 GMC Canyon2016 GMC Sierra+ 2 more
  Associated Documents

  • DownloadMC-10113956-0001.pdf↗
• March 22, 2016•Document ID: 10113955

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

  Mfr Comm. #:

  PIT5268A

  Date Added:

  August 15, 2017

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary Information communication advises the technician that some vehicles may have a radio display that is covered when the radio station favorites list is maximized. This is a normal operating characteristic and no repair attempt should be made. The hidden screen functions will operate again after the user minimizes the favorites list by dragging it to the bottom of the display.

  Associated Products (59)

  2016 Buick LaCrosse2016 Buick Regal2016 Cadillac ATS2016 Cadillac CT62016 Cadillac CTS2016 Cadillac ELR2016 Cadillac SRX2016 Cadillac XTS2016 Chevrolet Camaro2016 Chevrolet Corvette2016 Chevrolet Impala2016 Chevrolet Malibu2016 Chevrolet Silverado2016 Chevrolet Suburban2016 Chevrolet Tahoe2016 Chevrolet Volt2016 GMC Sierra2016 GMC Yukon2016 GMC Yukon XL2015 Buick LaCrosse+ 39 more
  Associated Documents

  • DownloadMC-10113955-0001.pdf↗
• March 21, 2016•Document ID: 10113952

  Service Bulletin/Repair Instructions
  EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5391A

  Date Added:

  August 15, 2017

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that have a no crank or a start and then immediate stall, Service Engine Soon Malfunction Indicator lamp may not be on when the ignition is in the run position, Any of the following Diagnostic Trouble Codes may be set: B1370, B1325, P0650, P263A, P263B, P0513, and/or P0262B. Trucks equipped with 4WD may have a Service 4WD message and Diagnostic Trouble Codes C0364 and/or U0403 may set. Also the sound of a relay clicking while driving or engine stays running with ignition off until door is opened. Technician will inspect all the under-hood fuse block-X50A connectors for any backed out terminals, poor terminal fit and/or bent/twisted terminals. The most common terminals with these issues have been with terminal M5 at connector X4, for circuit 5199 and terminal M7 at connector X2, for circuit 439. Technician will inspect for any backed out terminals, poor terminal fit and/or bent/twisted terminals at the left instrument panel fuse block - X51L. The most common terminals with these issues have been terminal 42 at connector X1, for circuit 5199 and terminal 44 at connector X2, for circuit 1850. Also circuit 5199 will need to be inspected and repaired under the driver?s sill plate.

  Associated Products (18)

  2016 Cadillac Escalade2016 Cadillac Escalade ESV2016 Chevrolet Silverado2016 Chevrolet Suburban2016 Chevrolet Tahoe2016 GMC Sierra2016 GMC Yukon2016 GMC Yukon XL2015 Cadillac Escalade2015 Cadillac Escalade ESV2015 Chevrolet Silverado2015 Chevrolet Suburban2015 Chevrolet Tahoe2015 GMC Sierra2015 GMC Yukon2015 GMC Yukon XL2014 Chevrolet Silverado2014 GMC Sierra
  Associated Documents

  • DownloadMC-10113952-0001.pdf↗
• March 21, 2016•Document ID: 10113950

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES; ENGINE

  Mfr Comm. #:

  PIT5206D

  Date Added:

  August 15, 2017

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician with the steps on diagnosing and repairing vehicles that may have unwanted grade braking, reduced engine power with no Driver Information Center messages ? Brake Pedal Override Feature ?, transmission busy or frequent shifting up or down, and Diagnostic Trouble Codes P057B, P057C, and/or P057D may or may not be set. Technician will use this preliminary information to find the brake pedal position data parameters in the scan tool, and also to provide some additional diagnostic help. These issues may be caused by an incorrect brake pedal position sensor input to the engine control module. Technician will verify with the scan tool if the engine control module has the correct parameters for the brake pedal position sensor. If an engine control module brake pedal position sensor relearn is performed, the truck may be temporarily repaired until the intermittent wiring issue between the engine control module and brake pedal position sensor occurs again. On 2014 and newer trucks inspect and repair any damage to X115 and X119. On the 2014 and previous trucks inspect and repair any damage to X205.

  Associated Products (52)

  2016 Cadillac Escalade2016 Cadillac Escalade ESV2016 Chevrolet Express2016 Chevrolet Silverado2016 Chevrolet Suburban2016 Chevrolet Tahoe2016 GMC Savana2016 GMC Sierra2016 GMC Yukon2016 GMC Yukon XL2015 Cadillac Escalade2015 Cadillac Escalade ESV2015 Chevrolet Express2015 Chevrolet Silverado2015 Chevrolet Suburban2015 Chevrolet Tahoe2015 GMC Savana2015 GMC Sierra2015 GMC Yukon2015 GMC Yukon XL+ 32 more
  Associated Documents

  • DownloadMC-10113950-0001.pdf↗
• March 21, 2016•Document ID: 10113949

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  PIT5403A

  Date Added:

  August 15, 2017

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician with the steps to diagnosis and repair vehicles with various handling, vehicle dynamics concerns, noises from the suspension or underbody, or issues related to damaged suspension components. Before any in-depth diagnostics are performed, be aware that various issues could occur if the vehicle has been modified and inform the customer the conditions noted may not be covered under warranty. Technician will inspect for installed aftermarket suspension components. Also inspect for improperly adjusted torsion bars.

  Associated Products (83)

  2016 Cadillac Escalade2016 Chevrolet Silverado2016 Chevrolet Suburban2016 Chevrolet Tahoe2016 GMC Sierra2016 GMC Yukon2016 GMC Yukon XL2015 Cadillac Escalade2015 Chevrolet Silverado2015 Chevrolet Suburban2015 Chevrolet Tahoe2015 GMC Sierra2015 GMC Yukon2015 GMC Yukon XL2014 Cadillac Escalade2014 Chevrolet Silverado2014 Chevrolet Suburban2014 Chevrolet Tahoe2014 GMC Sierra2014 GMC Yukon+ 63 more
  Associated Documents

  • DownloadMC-10113949-0001.pdf↗
• March 20, 2016•Document ID: 10090365

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  15208

  Date Added:

  February 3, 2017

  Manufacturer:

  CHEVROLET

  Summary

  15208 - CUSTOMER ADVISORY. THE LETTER INFORMS CUSTOMERS WITH VEHICLES THAT ARE EQUIPPED WITH SNOW PLOW PREP PACKAGE (RPO VYU) THAT, UNDER CERTAIN CONDITIONS, THERE MAY BE BRIEF AND INTERMITTENT INTERRUPTIONS OF CERTAIN ELECTRONIC FEATURES WHEN THE VEHICLE IS FITTED WITH A SNOW PLOW. FOR EXAMPLE, A BRIEF OUTAGE OF THE INSTRUMENT PANEL CLUSTER, THE RADIO, AND/OR THE CLIMATE CONTROL SYSTEM COULD OCCUR UPON RELEASING THE SNOW PLOW CONTROL BUTTON AFTER ADJUSTING THE SNOW PLOW BLADE. THESE SYSTEMS WILL RETURN AUTOMATICALLY AFTER THE BRIEF INTERRUPTION.

  Associated Products (4)

  2015 Chevrolet Silverado2015 GMC Sierra2014 Chevrolet Silverado2014 GMC Sierra
  Associated Documents

  • DownloadMC-10090365-0001.pdf↗
• March 18, 2016•Document ID: 10113940

  Service Bulletin/Repair Instructions
  STEERING:GEAR BOX:SHAFT PITMAN; STEERING

  Mfr Comm. #:

  PIT5501

  Date Added:

  August 15, 2017

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician on the steps to diagnosis and repair steering that feels loose or has excessive play. This concern could be cause by an incorrect Pitman Shaft Over-Center Preload Adjustment. Technician will perform a Steering Gear Pitman Shaft Over-Center Preload Adjustment procedure. Technician will remove the steering gear. The steering gear pitman shaft lash adjuster nut will need to be loosened. Turn the steering gear pitman shaft lash adjuster screw counterclockwise until fully extended. Turn the steering gear pitman shaft lash adjuster screw clockwise one full turn. Rotate the steering gear input shaft from stop to stop using a socket designed for the input shaft geometry, or crows foot with ratchet while counting the number of turns. Starting at either stop, turn the steering gear input shaft back half the total number of turns counted previously. This is the center position of the steering. Ensure the steering gear pitman shaft is centered. The flat on the steering gear input shaft should be facing upward and parallel with the steering gear side cover. Also the master spline on the steering gear pitman shaft is in line with the steering gear pitman shaft lash adjuster screw. Use a torque wrench on the steering gear input shaft to rotate the steering gear input shaft 300 degrees from each side of the center of the input shaft. The input shaft MUST rotate smoothly and must NOT stick or bind. Record the average turning torque from -300 to +300 degree sweep. The average "off center friction" torque must be 0.4 to 1.1 Nm (4 to 10 in lbs). If the torque is outside this range, replace the steering gear assembly. Tighten the steering gear pitman shaft lash adjuster nut to 75-85Nm (55-63 lb ft). Reprogram the Power Steering Control module with the latest calibrations in Tis2Web. Using the scan tool perform a Steering Angle Sensor Centering. Then use the scan tool to perform a Power Steering Pressure S

  Associated Products (2)

  2016 Chevrolet Silverado2016 GMC Sierra
  Associated Documents

  • DownloadMC-10113940-0001.pdf↗