Hyundai Elantra (CN7): Safe Exit Warning (SEW) / Function malfunction and limitations
Function malfunction
When Safe Exit Warning is not working properly, the ‘Check Blind-Spot Safety system’ warning message will appear on the cluster, and the system will turn off automatically or the system will be limited. We recommend that the system be inspected by an authorized HYUNDAI dealer.
Function disabled
When the rear bumper around the rear corner radar or sensor is covered with foreign material, such as snow or rain, or installing a trailer or carrier, it can reduce the detecting performance and temporarily limit or disable Safe Exit Warning.
If this occurs, the ‘Blind-Spot Safety function disabled. Radar blocked’ warning message will appear on the cluster.
The function will operate normally when such foreign material or trailer, etc. is removed, and then the engine is restarted.
If the function does not operate normally after it is removed, we recommend that the system be inspected by an authorized HYUNDAI dealer.
WARNING
- Even though the warning message does not appear on the cluster, Safe Exit Warning may not properly operate.
- Safe Exit Warning may not properly operate in an area (e.g. open terrain) where any substance are not detected right after the engine is turned on, or when the detecting sensor is blocked with foreign material right after the engine is turned on.
CAUTION
Turn off Safe Exit Warning to install a trailer, carrier, etc., or remove the trailer, carrier, etc. to use Safe Exit Warning.
Limitations of the function
Safe Exit Warning may not operate normally, or the function may operate unexpectedly under the following circumstances:
- Getting off the vehicle where trees or grass are overgrown
- Getting off the vehicle where the road is wet
- The approaching vehicle is very fast or very slow
WARNING
- Safe Exit Warning may not operate normally if interfered by strong electromagnetic waves.
- Safe Exit Warning may not operate for 3 seconds after the vehicle is started, or rear corner radars are initialized.
Warning and control Collision warning when exiting vehicle When an approaching vehicle from the rear is detected, the ‘Watch for traffic’ warning message will appear on the cluster, and an audible warning will sound.
(1) Manual Speed Limit Assist enabled indicator (2) Set speed You can set the speed limit when you do not want to drive over a specific speed. If you drive over the preset speed limit, Manual Speed Limit Assist will operate (set speed limit will blink and chime will sound) until the vehicle speed returns within the speed limit.
Other information:
Hyundai Elantra (CN7) 2021-2025 Service Manual: Photo Sensor
Description and operation Description 1.The photo sensor is located at the center of the defrost nozzles.2.The photo sensor contains a photovoltaic (sensitive to sunlight) diode. The solar radiation received by its light receiving portion, generates an electromotive force in proportion to the amount of radiation received which is transferred to
Hyundai Elantra (CN7) 2021-2025 Service Manual: Description and operation
DescriptionRear Corner Radar is a system that measures the relative speed and distance from the following vehicles by using two electromagnetic wave radar sensors attached to the rear bumper, and detects any vehicle within the blind spot zone and gives off alarm.
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