NHTSA (USA)Medium Risk
1999 HYUNDAI SONATANHTSA Campaign #00V259001
The official notice
Defect
VEHICLE DESCRIPTION: SOME SONATA VEHICLES EQUIPPED WITH 2.5 LITER V-6 ENGINES AND ALL ELANTRA MODEL VEHICLES MAY HAVE EXPERIENCED INTERMITTENT LOW-SPEED ENGINE STALLING, WHICH COULD OCCUR IF THE MAF (MASS AIR FLOW) SENSOR ELECTRICAL SIGNAL IS INTERRUPTED AS A RESULT OF ENGINE VIBRATION TRANSMITTED TO THE MAF SENSOR CONNECTOR WIRING HARNESS.
Safety Risk
THIS CONDITION CAN CAUSE THE ENGINE TO STALL, INCREASING THE RISK OF A CRASH.
Remedy
DEALERS WILL RE-ROUTE THE MAF SENSOR CONNECTOR WIRING HARNESS.
Updated June 10, 2026