Hyundai Sonata LF Quiz
Driving Your Vehicle

Hill-start Assist Control (HAC)

In this manual: Driving Your Vehicle
Your Vehicle at a Glance — 5Your Vehicle's Safety System — 48Convenient Features of Your Vehicle — 162Multimedia System — 7Driving Your Vehicle — 90What to Do in an Emergency — 32Maintenance — 59Specifications, Consumer Information and Safety Defect Reporting — 8
~1min read

The Hill-start Assist Control (HAC) helps prevent the vehicle from rolling backward when starting on an incline. The system automatically applies the brakes for approximately 2 seconds and releases the brake when the accelerator pedal is depressed or after 2 seconds.

WARNING

Always be ready to press the accelerator pedal when starting on a slope. HAC is active for approximately 2 seconds.

NOTICE

  • HAC does not operate when the shift lever is in P (Park) or N (Neutral).
  • HAC operates even when ESC (Electronic Stability Control) is turned off, but it does not operate if the ESC is malfunctioning.

Test yourself

A quick Hyundai Sonata LF quiz: every answer comes with an explanation and a link to the manual page.