Motor Vehicle Parts

For Passenger and Off-Highway Vehicles

Why am I being warned about potential exposure to chemicals in motor vehicle parts?
  • Some chemicals in motor vehicle parts are on the Proposition 65 list for cancer or reproductive toxicity.
  • California’s Proposition 65 requires businesses to warn people before exposing them to a significant amount of a chemical listed under Proposition 65 for cancer or reproductive toxicity.

Some motor vehicle parts can expose you to chemicals on the Proposition 65 list. These include some parts used in cars, SUVs, vans, pickup trucks, motorcycles, and all-terrain and other off-highway vehicles.

Not all vehicle parts will expose you to chemicals on the Proposition 65 list.

This fact sheet focuses on exposures to listed chemicals that can occur when you handle motor vehicle parts. To learn about exposures from motor vehicle use, see our fact sheet on vehicles.

Chemicals associated with common motor vehicle parts include:

  • Lead, which is used in lead-acid batteries, and in some metal and other parts.
  • Phthalates, a group of chemicals that make plastic flexible. Some phthalates may be present in cable and wire coverings, floor mats, and other parts.
How does exposure to chemicals on the Proposition 65 list occur when handling motor vehicle parts?
Exposure to chemicals in motor vehicle parts: 1.Breathing in chemicals present in air and dust 2. Transferring chemicals from the hands to the mouth and swallowing
  • During pregnancy, some of these chemicals can pass from mother to baby.
How can I reduce my exposure to chemicals on the Proposition 65 list when handling motor vehicle parts?
  • When purchasing a motor vehicle part, follow the manufacturer’s instructions for safe handling and use. Contact the manufacturer if you have questions about a Proposition 65 warning for a specific part.
  • If your brakes need to be serviced, and you suspect that they may contain asbestos, take your vehicle to a professional mechanic.
  • When working on your vehicle and handling motor parts:
    • Work in a well-ventilated area.
    • Wear protective clothing suited for the task, including gloves. Wash soiled clothing and gear separately from other items.
    • Wash your hands when you finish, especially before preparing food or eating.
    • Use a wet mop or vacuum cleaner with a high-efficiency particulate air (HEPA) filter when cleaning up your work area.
  • Responsibly dispose of used motor vehicles and parts.
    • Most wholesalers or retailers who sell lead-acid motor vehicle batteries will accept your used battery when you purchase a new one.
    • Check with your county waste management agency about the best way to dispose of or recycle any parts that may be hazardous.
    • Avoid leaving used parts unattended on your property and keep them out of the reach of children.
For more information:

General Fact Sheets and Resources

Proposition 65

Updated July 2024
Fact Sheet - Motor Vehicle Parts

Related Chemical(s)

Related Product or Place

References
Product/Place