nelsthom Posted March 3, 2018 Share Posted March 3, 2018 While in Cruise Control, Dynamic (Radar) at about 70 mph, for no apparent reason a chime will ring 4 or 5 times and the car will slow down dramatically (brakes) to about 60 mph, only to aggressively speed back up to 70. It may repeat this several times until I just hold the accelerator to hold speed. Weather, sunny and dry. Traffic, often NONE! Sporadic. it may go months without a re-occurrance. Quote Link to comment Share on other sites More sharing options...
Toyota Owners Club Posted April 23, 2018 Share Posted April 23, 2018 can only think that the radar is contaminated with dirt or dust which may be inhibiting the readings or alternatively, there could be some Radio frequency interference affecting it (if it occurs on the same stretch of road each time?) Quote Link to comment Share on other sites More sharing options...
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