GMW 17442 Performance Requirements for Interior Graphics Applied to Parts

The "GMW 17442 Performance Requirements for Interior Graphics Applied to Parts" standard, published by General Motors (GM), describes the performance requirements for interior graphics applied to parts. This procedure includes pad printing and screen printing of inks or paints. Material approval is only required when color development (i.e., trim transfer) is necessary.

Examples of parts that must meet this specification include primary or secondary surface interior components such as instrument panels, control levers, switches, and mounting frames.

GMW 17442 is an engineering standard that defines performance requirements for graphics (such as printed icons, labels, or markings) applied to automotive interior parts. This standard primarily covers processes such as pad printing and screen printing, which use ink or dye.

This standard includes requirements for durability, adhesion, appearance, and environmental resistance for graphics applied to vehicle interior components. It ensures that printed or painted markings remain legible, robust, and aesthetically acceptable throughout the vehicle's lifespan under typical interior conditions.

The GMW 17442 standard classifies graphs according to their location and exposure status:

• Type 1: Graphics on the initial surface of interior trim pieces exposed to ultraviolet (UV) light (e.g., areas near windows or in direct sunlight).
• Type 2: Graphics on the primary surface of parts not exposed to ultraviolet light (e.g., lower console areas, trunk interiors).
• Type 3: Graphics on the second surface of internal parts exposed to ultraviolet light (when viewed through a transparent substrate).

Applicable parts include instrument panels, control levers, switches, mounting frames, and other interior components with decorative or functional graphics.

For graphics under the hood, the performance requirements are governed by the GMW 16910 standard.

This standard typically tests the following:

• Adhesion and scratch resistance.
• Resistance to cleaning agents, solvents, and abrasion.
• Color fastness and resistance to ultraviolet light and weathering (especially for Type 1 and Type 3).
• Thermal cycling and moisture resistance.
• Readability and appearance after exposure to environmental influences.

These features ensure that the graphics don't fade, peel, crack, or become illegible over time.

This standard is part of a broader suite of material and performance specifications that General Motors uses to help ensure consistency, safety, and quality in its global vehicle manufacturing.

Unlike odor or emission standards, the GMW 17442 standard focuses on decorative and functional graphics used inside vehicles. For example...

• Printed symbols and icons
• Logos and branding elements
• Control labels on buttons and switches
• Instrument panel indicators
• Decorative trim graphics
• Backlit lettering and overlays

These graphics should remain visually acceptable and functional throughout the vehicle's lifespan, despite continuous use and environmental impacts.

Interior graphics are critical because they serve both aesthetic and functional purposes. Drivers rely on signage to operate vehicle systems, while consumers expect a high-quality look throughout their ownership.

This standard was developed to ensure that the graphics implemented can withstand the following:

Wear and tear from repeated touching or cleaning.

• Chemical exposure from cleansers, sunscreens, lotions, and beverages.
• Extreme temperature changes
• Humidity and moisture
• UV and light exposure
• Scratches and abrasions

Without proper testing, the graphics may fade, peel, crack, become blurry, or disappear prematurely.

GMW 17442 standard applies to graphics used in automotive interior parts such as those listed below:

• Center consoles
• HVAC controls
• Steering wheel buttons
• Infotainment interfaces
• Door panel checks
• instrument panels
• Key panels
• Decorative interior trim components

This standard is typically used for components that include the following:

• Pad printing
• Screen printing
• Coated laser engraving
• Hot stamping
• Labels and stickers
• Mold interior decoration
• Painted or coated symbols

The GMW 17442 standard generally evaluates the following characteristics:

• Adhesion: The graphics must remain adhered to the substrate without peeling or lifting. Typical tests may include:
  • Tape adhesion
  • Cross-screening adhesion assessment.
• Abrasion resistance: Printed graphics must be resistant to wear from repeated use. This test simulates the following:
  • Finger contact
  • Rubbing the cloth
  • Cleaning cycles
• Chemical resistance: The graphics are exposed to substances commonly found in vehicle interiors. The marking should not smudge, change color, or dissolve. These include:
  • Hand lotions
  • suntan cream
  • Cleaning agents
  • Alcohol-based solutions
  • Drinks
• Scratch resistance: Decorative and functional markings must be resistant to visible damage from accidental contact.
• Environmental resilience: The graphs are subjected to the following environmental aging tests:
  • heat aging
  • Moisture exposure
  • Thermal cycle
  • UV exposure

These tests ensure long-term stability.

• Visual requirements: After testing, graphics are generally evaluated from the following perspectives:
  • Color consistency
  • Maintaining brightness
  • Legibility
  • Edge quality
  • No blistering, cracking, or separation of layers.

GMW 17442 standard is considered important for the following reasons:

• Functional safety: Many interior graphics convey operational information. If symbols fade or become illegible, usability and safety can be affected. Examples include defrosting symbols, hazard checks, and seat heating indicators.
• Durability and perceived quality: Worn or peeling graphics, even if mechanically sound, quickly make a vehicle look old or low-quality.
• Supplier qualification: Suppliers must demonstrate that their printing processes, inks, coatings, and substrates meet GM durability expectations.
• Warranty reduction: Premature graphical failure can lead to costly warranty claims and customer dissatisfaction.

Although this standard is specific to GM, similar requirements are widely applicable in the following areas:

• Automotive interiors
• Consumer electronics interfaces
• Device control panels
• Industrial equipment labeling

In conclusion, the GMW 17442 standard is a crucial automotive durability standard that ensures printed, coated, or decorative graphics on interior components remain legible, durable, chemically resistant, and visually acceptable throughout the vehicle's lifespan. By validating graphics against abrasion, chemicals, and environmental stress, the standard helps manufacturers deliver both reliable functionality and long-term interior quality.

For many years, our organization, with its competent and experienced staff, has been understanding the needs of its clients, providing the advanced testing services they require, and assisting them in the establishment, implementation, and improvement of management systems. Within this framework, we also provide testing services in accordance with the GMW 17442 standard.