Hyundai Problems

RepairPal has identified the most common problems with the Hyundai as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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Known Problems

Prior to replacing the automatic transmission fluid (to improve shift quality), make sure that the transmission fluid level is correct. Also, make sure the computer that controls the transmission has the most up-to-date adaptive programming information. When servicing these transmissions be sure to use fluid approved by Hyundai.

A faulty engine control module (ECM) ground circuit may cause various issues including stalling, loss of air conditioning operation, and illumination of the Check Engine Light. Our technicians tell us that adding another ground wire to the ECM wire harness can often correct this issue.

Due to several possible engine-related problems, the Check Engine Light may illuminate. If this occurs, reprogramming the computer that controls the engine should fix the problem.

If you have driven your car a few miles and experience a hesitation during acceleration, possibly accompanied by illumination of the Check Engine Light, the problem may be related to a defective front oxygen sensor. An updated sensor is available to correct this problem.

If the Check Engine Light illuminates, indicating a problem with the front oxygen sensor, but the sensor tests okay, reprogramming the engine's control computer should fix the problem. Then, the Check Engine Light will no longer falsely illuminate and the acceleration, particularly from a stopped position, will be smoother.

If the alternator fails, it should be replaced with an improved design which is better able to replenish electrical power to the battery. The new alternator requires a different diameter drive belt.

Hyundai issued a recall on the airbag computer; it needs to be reprogrammed to prevent the airbags from deploying incorrectly during an accident when a child car seat has been placed in the passenger front seat.