One problem related to adaptive cruise control has been reported for the 2009 Hyundai Elantra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Hyundai Elantra based on all problems reported for the 2009 Elantra.
Drove about 1 hour using cruise control part of the time. Don't usually use it, but used it 2 months ago with no problem. After 1. 5 hour visit, drove home. Did not use cruise control, but at last 10 minutes acceleration issue started where car would "rev" even though I was not accelerating. Able to manage it with brake and normal driving. Tried to reset cruise (turn on/off), but car still had episodes of "revving". Did not accelerate to dangerous level and controllable. After car sat in garage for 2 hours, I drove out of neighborhood to empty stretch of road and accelerated to 50 with no problems and no revving of engine. Service check scheduled.
| Adaptive Cruise Control problems | |
| Automatic Emergency Braking problems |