Ergonomics Design Process – 21 Review Overview of Changes for Vehicle/GPS New book being published Last revision was 2013 Collaboration during product development and start of regular production

Overview of Changes for Vehicle/GPS Major changes in 2013, Minor changes in 2016 Changes for clarification Changes to better align with revised GVDP/GPDP CETC to Global Propulsion Systems (GPS)

Roles and Responsibilities Page 7

Administrative and Training Elements Page 9

Revised CETC to Global Propulsion System throughout the document

GM Vehicle Systems, Body Systems and GPS Page 13

GM Vehicle Systems, Body Systems and GPS Page 14 Body Systems Stamping and Body-In-White (BIW Operations)

Changes based on GPDP definition shanges Page 15

Chart 2 - Vehicle Systems - Future Program Ergonomics Process VPI CSO CVER SORP SVER IVER MVB- NS S DSI Ergonomics Process Overview Meeting with Plant JETT • Identify Issues during Virtual Engineering Phase (Pre-IVER) Attend Physical (Integration) Builds at Pre-Production Operations (PPO) • Attend Physical (Validation) Builds At Plants Product Design Assists and Specialized Tools • Review Assist Tooling Worksheets & Attend Reviews / Buy-offs Containers • Review Container Worksheets & Attend Reviews / Buy-offs Line Balance • Review Assembly Process System (APS) ergonomics evaluations • Review and Track issues in TED • Transition open issues to Plant JETT 6 month clock* Based on GVDP September 2013 5.3 Timing *Between Start of Regular Production (SORP) and Launch Team Release (LTR)

Chart 3 - Body Systems - Future Program Ergonomics Process VPI CSO CVER SORP SVER IVER MVB- NS S DSI T4 • Review part handling data in the Part Handling Forum (PHF) database (approximately week -120 to -98) Stamping (Die Execution) - Part Handling Plan • Review BIW Worksheets & Attend Reviews / Buy-offs (approximately week -94 to -64) Body-in-White (BIW) Tooling • Review Assist and Specialized Tooling Worksheets & Attend Reviews / Buy-offs (approximately week -94 to -64) Assist and Specialized Tooling • Review Container Worksheets & Attend Reviews / Buy-offs (approximately week -75 to -63) Containers • Review and Track issues in TED • Transition open issues to Plant JETT 6 month clock* Based on GVDP September 2013 5.3 Timing *Between Start of Regular Production (SORP) and Launch Team Release (LTR)

Chart 4 - Powertrain Systems - Future Program Ergonomics Process KO DC Mule CI Mnfg. Site Dec CS AR Approved Beta CC Gamma FA PA PT SORP Product Design • Participate in Reviews of New Product Designs during Mock-Ups and Slow Build Events Manufacturing Engineering Design • Review Ergonomic Design Requirements and Assessments (EDRA) • Review Machine Run-Off (MRO) Documentation 2013 Version Container Design • Review container worksheets & Attend Reviews / Buy-offs • Review and Track issues in TED • Transition open issues to Plant JETT 6 month clock* Based on GPDP September 2013 *Between Start of Regular Production (SORP) and 50% End of Acceleration (EOA)

Chart 4 – Global Propulsion Systems (PT) - Future Program Ergonomics Process Ergonomics Process Overview Meeting Product Design • Participate in Reviews of New Product Designs during Mock-Ups and Slow Build Events Revised 2016 Change to align with new gate deliverables Manufacturing Engineering Design • Review Ergonomic Design Requirements and Assessments (EDRA) • Review Machine Run-Off (MRO) Documentation Container Design • Review container worksheets & Attend Reviews / Buy-offs • Review and Track issues in TED • Transition open issues to Plant JETT 6 month clock* Based on GPDP and rev. June 2016 *Between Start of Regular Production (SORP) and 50% through Ramp

Other Changes made to EDP-21 Document Operator Work Envelope Table of Contents Appendix Acronyms Revisions

Correction to Operator Work Envelope In some documents the operator work envelope secondary limit had previously been defined as a 25”/640mm reach. 25” is actually 635mm. All charts using 640mm are updated to reflect this change to 635mm. Documents updated include: Assist and Specialized Tool Worksheet BIW Worksheet GPS Machining and Equipment Run-off Document

Appendix

Acronyms The following were deleted: The following were added: CETC Casting, Engine and Transmission Center DEW Design Ergonomics Worksheet T-Event Try-out event The following were added: GPS Global Propulsion Systems (Formerly CETC/Powertrain) The following were corrected: MVBNS Manufacturing Validation Build Non-Saleable MVBS Manufacturing Validation Build Saleable

Collaboration Between JETT and Future Program Ergonomist Collaboration between the future program ergonomist and the JETT is key to launching a product with no ergo issues Plant JETT has knowledge of how plant operates, what has worked, what has not worked Future Program Ergonomist has knowledge of the product, early Will learn the plant issues once Plant is identified. Lessons learned form the plant.

Collaboration Between JETT and Future Program Ergonomist Once plant is identified (and throughout IV): Meeting with JETT at site or on conference calls Review of product working file and open issues Attendance/review of containers, lift assists and tools Timing may vary based on program

Collaboration Between JETT and Future Program Ergonomist During IV JETT should be interfacing with plant core team members to be aware of product differences and changes from the current product. The JETT need to emphasize the importance of discovering ergo issues before the plant builds begin JETT should visit PPO during a build at least once JETT will be on distribution of Ergo Scorecard that is presented at the weekly quality wall

Collaboration Between JETT and Future Program Ergonomist During the MVBns and MVBs builds the future program ergonomist and the JETT should be collaborating on issues JETT can assist in measure parts, assess and verify BP’s when the FPE cannot be present JETT will attend plant quality walls as ergo rep when FPE cannot be present

Collaboration Between JETT and Future Program Ergonomist To facilitate the transfer of the program to the plant: Before SORP, JETT and FPE determine a mutually agreed upon plan for program hand off from the FPE to the JETT For issues not resolved prior to SORP, the 6 month clock will start between SORP and Launch Team release, on a date mutually agreed upon with the Division Ergonomics and JETT and/or Industrial Engineering Manager