Corrosion Protection Guidelines: Toyota/Lexus

A key factor in collision repair is making long-lasting repairs. When a vehicle is repaired, many areas of corrosion protection are disturbed. This creates corrosion hot spots that left untreated will lead to corrosion and potentially a repair failure. However, there are certain precautions that can be taken to safely and properly restore the corrosion protection throughout the repair process. OEMs often give specifications on restoring corrosion protection. These specifications generally include seam sealer, adhesives, foam fillers, and cavity waxes. Let’s take a look at what Toyota/Lexus says.

Toyota/Lexus does not specify the type of product to be used for restoring corrosion protection. However, there are typically two areas within the vehicle-specific body repair manual in which to find information on corrosion protection. The first is located under: General ➤ Work Notices and Precautions ➤ Anti-Rust Treatment After Installation of Body Structure Parts or Outer Panels. The other area is located in Vehicle Exterior ➤ Painting/Coating. Additional documentation is located in CRIB #186 Corrosion Prevention for Collision Repair.

There are guidelines given as to when corrosion protection should be applied for example, per the 2017 Toyota Highlander body repair manual: “For water-proofing and anti-rust measures, always apply the body sealer to the body panel seams and hems of the doors, hood, etc.” The procedure will usually include hints and illustrations to aid you in the application process.

Always follow OEM repair procedures for all repairs. Failure to follow corrosion protection guidelines can lead to premature failure on a repair. Always refer to Toyota/Lexus service information for the most up-to-date CRIB information. Using the proper corrosion protections will ensure a complete, safe, and quality repair.

For additional information and links to Toyota/Lexus vehicles, check out the following OEM pages:
Toyota
Lexus

Additional I-CAR Collision Repair News you may find helpful:


Related I-CAR Courses

  • Repairer Driven News: Rivian Updates Door Handle Procedure Sunday, 4 February 2035

    Repairer Driven News (RDN) released an article featuring an updated Rivian procedure.

  • 2025 SkillsUSA National Competition Results Monday, 30 June 2025

    The 2025 SkillsUSA National Leadership and Skills Conference took place on June 26, 2025. Every year I-CAR sends volunteers (virtually in 2021) to judge the collision repair technology competition....

  • Ford/Lincoln Rocker Panel Reinforcement Sectioning Friday, 27 June 2025

    We are often asked, “Can I section this panel?” Let’s take a look at Ford/Lincoln vehicles and sectioning the rocker panel reinforcement.

  • Back-To-Basics: Backside Panel Refinish And Edging Thursday, 26 June 2025

    Sometimes, going back to the basics can make the difference between a quality repair and a failed repair. When repairing and refinishing, you might need to refinish the panel's backside and edges.

  • Hyundai Position Statement: Pre- And Post-Repair System Scanning - UPDATE Monday, 23 June 2025

    Hyundai released an updated position statement relating to pre- and post-repair system scanning.

  • App-Based Connected Services Considerations Tuesday, 17 June 2025

    Have you had an experience where the vehicle notified the owner that it was being moved while it was in your repair facility? App-based connected services are available from many vehicle makers and...

  • Digital Key Considerations Tuesday, 17 June 2025

    The intermingling of technology and automobiles continues, with digital key offerings from most vehicle makers. Digital keys utilize smartphone technology to expand vehicle access and owner...

  • Back-To-Basics: Tire Tread Pattern Wednesday, 11 June 2025

    Sometimes going back-to-basics can make the difference between a quality repair and a failed repair. Let’s see how to identify tire tread patterns and their repair considerations.

  • Corrosion Protection Guidelines: Ford/Lincoln - UPDATE Tuesday, 10 June 2025

    A key factor in collision repair is making long-lasting repairs. When a vehicle is repaired, many areas of corrosion protection are disturbed. This creates corrosion hot spots that, left untreated,...

  • Rivian Restraints Wiring Thursday, 5 June 2025

    The question is often asked, "Can supplemental restraints system wiring be repaired?" The answer is: it depends on the vehicle maker. Let's take a look at Rivian's position on this subject.