My vehicle incorrectly read highway number signs as though they were speed limit signs. This occurred eight times on state highway [XXX] in Florida; and once on state highway [XXX]. The speed limit was actually 55 mph on highway [XXX]. If I would have had “Predictive Speed Assist” turned on, and was using adaptive cruise control, it would have automatically decelerated to 40, +/- whatever “tolerance” I had set. What would happen if this occurs on highway 80, or highway 100? Acceleration to 100 mph, and possibly to 120 mph if I had the tolerance set to +20? This error, which happened while I was a passenger, could significantly exacerbate problem #1. See details in the attached 5 page pdf. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI 11573696