MG HS PHEV Manual page 221

If the vehicle ahead changes lanes, but does not drive into
the lane completely, the ACC system may be unable to
detect the vehicle.
If the vehicle ahead changes lanes, but does not exit the
lane completely, the adaptive cruise control system may
determine that the vehicle ahead has exited the lane and
accelerate to any preset speed.
STARTING & DRIVING
When driving on uneven roads that may include steep
climbs or dips please DO NOT use the ACC system.
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