Hyundai Tucson: Intelligent Speed Limit Assist (ISLA) / Intelligent Speed Limit Assist Malfunction and Limitations

Intelligent Speed Limit Assist malfunction

When Intelligent Speed Limit Assist is not working properly, the "Check Speed Limit Assist System" warning message may appear, and the () warning light may illuminate on the instrument cluster. Have the vehicle inspected by an authorized HYUNDAI dealer.

Intelligent Speed Limit Assist disabled

If the front view camera is covered or blocked, its detecting performance is reduced, and Intelligent Speed Limit Assist is temporarily limited or disabled.

The "Speed Limit Assist system disabled. Camera obscured" warning message may appear on the instrument cluster.

If Intelligent Speed Limit Assist does not operate normally after the sensor has been uncovered or unblocked, have the vehicle inspected by an authorized HYUNDAI dealer.

WARNING

Intelligent Speed Limit Assist may not operate properly even if there is no warning message or warning light on the instrument cluster.

Limitations of Intelligent Speed Limit Assist

Intelligent Speed Limit Assist may not operate or may be limited if:

• The road sign is damaged, difficult to see due to rain, snow, fog, dirt, sand, oil, etc., or obscured by surrounding objects or shadows.
• The road signs do not conform to the standard designs in your country.
  - The text or picture on the road sign is different from the standard designs in your country.
  - The road sign is installed between the main road and exit road or between diverging roads.
  - A sign is attached to another vehicle.
• The distance between the driving lane and road sign is far.
• There are LED road signs.
• The numbers or pictures in the road sign is incorrectly recognized as the speed limit.
• Road signs on adjacent roads are incorrectly recognized as road signs you are driving on.
• Multiple signs are installed close together.
• Supplementary road signs or signboards are installed near the road sign.
• A minimum speed limit sign is incorrectly recognized as the maximum speed limit sign.
• The brightness changes suddenly, for example when entering or exiting a tunnel or passing under a bridge.
• Headlights are not used, or the brightness of the headlights are weak at night or in the tunnel.
• Road signs are difficult to recognize due to the reflection of sunlight, streetlights, or oncoming vehicles.
• The front view camera’s field of view is obstructed by glare from the sun.
• You are driving on a road that is sharply curved or continuously curved.
• You are driving through speed bumps, or driving up and down, or left to right on steep inclines.
• Your vehicle is shaking heavily.
• There is an error in the navigation map data or GPS data.
• You are not driving your vehicle based on the route guidance.
• You are driving your vehicle on a newly opened road.
• The navigation system is updated while driving or restarts.

Information

For more information on the limitations of the front view camera, refer to "Forward Collision-Avoidance Assist (FCA)" section in this chapter.