2008 Toyota Sequoia Owners Manual - Page 226

2-4. Using other driving systems n Laser radar sensor Always keep the sensor clean to ensure that the vehicle-to-vehicle distance control operates properly. (Some obstructions, such as snow, ice or plastic objects, cannot be detected by the obstruction sensor.) Dynamic laser cruise control is canceled if an obstruction is detected. n Certification This product is a class l laser product complied with 21C.F.R part 1040.10 and 1040.11. 192