I-CAR Collision Repair Of The 2021 General Motors (GM) Full-Frame Sport Utility Vehicles (SUV) Course

The GM full-frame SUVs have undergone a redesign for 2021. This has brought about various structural changes, as well as construction material changes.

The Collision Repair Of The 2021 General Motors (GM) Full-Frame Sport Utility Vehicles (SUV) course allows technicians to learn about the construction of these full-frame vehicles, along with many other topics, such as:

  • Design changes
  • Repair highlights
  • Construction material
  • Structural procedures
  • Advanced driver assistance systems (ADAS) overview

The SUVs that have been redesigned are the:

  • Yukon
  • Yukon XL
  • Tahoe
  • Suburban
  • Escalade

One of the most noticeable changes is construction materials. GM uses a combination of the following materials for the vehicle body:

  • High-strength low alloy (HSLA) steel
  • Ultra-high-strength steel (UHSS)
  • Dual-phase (DP) steel
  • Mild steel
  • Aluminum

The course details the use of aluminum throughout the body. Aluminum is used for closure panels, i.e. door panels, hoods, liftgates. Steel is used for the rest of the body structure, including:

  • Fenders
  • Outer quarter panels
  • Roof panel
  • A-pillars
  • B-pillars

The frame is comprised of mild steel, HSLA steel, and a few aluminum components. Repair options for the frame are explained in the course.

You will also learn of the standard ADAS packages on GM SUVs, along with optional ADAS. The course will walk you through how to navigate the GM ADAS configuration reference document.

For additional GM information, check out the following pages:
Chevrolet OEM Information
GMC OEM Information
Buick OEM Information
Cadillac OEM Information

Additional I-CAR Collision Repair News you may find helpful:
Collision Information Website Access: General Motors
Step-By-Step: Accessing General Motors Repair Information


Related I-CAR Courses

  • Body Shop Business: EV Intake Process Wednesday, 24 April 2024

    Body Shop Business has released an article highlighting the importance of the electric vehicle (EV) intake process.

  • Repairer Driven News: Matte Clearcoat Challenges Monday, 22 April 2024

    Repairer Driven News (RDN) has released an article highlighting the challenges of matte and semi-gloss clearcoat.

  • I-CAR Just In Time: EV Repair Tips Wednesday, 17 April 2024

    Sometimes seeing is understanding, that’s why I-CAR's technical team created the Just in Time video series to guide you through a variety of collision repair topics from ADAS and EVs to repair tips...

  • I-CAR RTS App Monday, 15 April 2024

    Looking for another tool for your toolbox? An informational guide at your fingertips? Well, the I-CAR Repairability Technical Support (RTS) app is what you are looking for!

  • Repairer Driven News: ADAS Radar Optimized Paint Color Resources Friday, 12 April 2024

    Changes in advanced driver assistance systems (ADAS) radar technology are introducing new refinishing considerations. Paint film thickness not only may affect the performance of ADAS radars, color...

  • Back-To-Basics: Window Tab Retractor Thursday, 11 April 2024

    Sometimes going back-to-basics can make the difference between a quality repair and a failed repair. Window regulators have evolved over the years, most now using a clip type retaining method. With...

  • High-Voltage Vehicle Paint Booth Quick Reference Tuesday, 9 April 2024

    When refinishing high-voltage (HV) vehicles, it is important to check for OEM paint booth temperature recommendations so that HV components do not get damaged in the heat.

  • Ford On Target 2024: Volume 1 Friday, 5 April 2024

    Ford has released the first installment of their On Target publication for 2024.

  • 3M Offers SOP And Process Hands-On Training and Skill Development Thursday, 4 April 2024

    The 3M Skills Development Center is a 15,000 sq ft facility where technicians can take a Body Repair Course or Paint Prep and Refinish Course. Both courses are majority hands-on of standard...

  • OEM Linking Pin: Nissan/INFINITI Outer Uniside Sectioning - Cut Line Clarification Wednesday, 3 April 2024

    As part of the I-CAR Repairability Technical Support (RTS) OEM linking pin activity, we are helping to connect the collision repair industry to the vehicle makers. We‘ve had technical inquiries that...