Question about 2009 Hyundai Genesis

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Has anyone experience a hesitation or delay in power on the 2009 Genesis V8 when pulling away from a stop.

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Drive by wire, lag may be normal

Posted on Oct 08, 2009

Testimonial: "I sell Nissan with drive by wire that don't have this problem. Will Hyundai be able to correct this?"

  • scootertr118 Oct 11, 2009

    there are updates and computer flashes released daily from the factory for many concerns, for drivability , and other problems,check with you dealer if there ar any availible yet,there might be one for your concern,the genisis is state of the art,its amazing how often we can fix a drivability concern with just a computer update.



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I have 2015 VW Passat 6 Speed Automatic I am havinf hesitations/delay froma dtopped postion for around 3 seconds when you press the accelerator ? Poblems I know. Suggestiobs ?

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My Santa Fe loses exceleration, if you push on gas, it will not go any faster, usually about 20 miles. When diagnosed got code p2135. I was told there was a recall by hyundai for this. Is this right

Hello, There is not a recall for this issue,but there is a TSB (technical safety bulletin) by Hyundai for this issue that you are having with your vehicle for the code that was set. What this consists of is replacement of the throttle position sensor and performing an ECU software upgrade for the vehicles computer. The process usually takes about 45 minutes to an hour to perform at a Hyundai service department. If you are the original owner of the vehicle or it has less than 60,000 miles, this repair procedure is no cost to the owner. Hope this info helps. Gabe

Technical Service








AUGUST, 2010



AUGUST, 2010








This bulletin revises TSB 09-FL-003-2 to add the Genesis Sedan (BH)

model to the applicability list. It also provides instructions to select the

most recent available ECM Update Events #166-178 or any higher event

numbers if they become available in the future.



Some 2.7L, 3.3L or 3.8L engines in models identified in the applicability list may

experience one or more of the following conditions:

• DTC P2135: Throttle position sensors 1/2 voltage correlation

• DTC P0638: Throttle actuator control range/performance

• RPM fluctuation while engine is cold (DTC not set)


Should either of the above DTC occur, the vehicle would have operated in

limited power "limp home" mode and stored the following DTC in the ECM:

• DTC P1295: ETC System Malfunction - Power Management

• DTC P2106: ETC System Malfunction - Forced Limited Power


• 2007-2009 EN Veracruz

• 2007-2009 CM Santa Fe

• 2006-2009 TG Azera

• 2007-2008 EP Entourage

• 2006-2009 NF Sonata with 3.3L Engine only

• 2009-2010 BH Genesis Sedan

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2 Answers

Paint chipping and cracking issue

sounds like a port of entry paint repair. A lot of times cars get damaged in transit and the repairs are carried out with out the knowledge of the dealer or the new owner at the port of entry. Usually without much thought of using the right flexable products so the bumper lasts, it looks good but cracks later.

Apr 14, 2010 | 2009 Hyundai Genesis

4 Answers

2009 toyota corolla hesitates when accelerating. when acceleration in normal speeds, there is a delay of about 4-5 seconds in hesitating during acceleration. no engine lights are on at all. has about...

If you own a 2004, 2005, 2006 or 2007 Toyota Corolla and your car hesitates when you accelerate or it hesitates when driving, you should try the solution described here. Below is a list of the behavior your car may show that tells that you should try this procedure before going to a mechanic or repair shop.
  • The accelerator is slightly pressed while the car is running and it slightly jitters or hesitates
  • After completely stopping the car (a red light for example), it hesitates when you accelerate to continue driving
  • Engine power is below the usual level
  • Sometimes check engine light turns on
You should know that while those problems can be caused by several issues, including low quality or altered fuel or even a loosely tighten fuel cap, the most common cause is a dirty MAF flow meter sensor.
The MAF sensor (Mass Air Flow Meter Sensor) is in charge of detecting how much air (in mass, not volume) is coming in to the engine, so the ecm computer can calculate the amount of fuel to be injected.
Some times this sensor gets contaminated by lots of microscopic debris that scape the air filter and accumulate on its sensing parts over time. The resulting effect is that the MAF flow meter sensor gets less "sensible" and detects less air than it is currently entering the engine. The reaction of the ecm computer will be to inject less fuel to keep the air fuel balance, taking as reference the false reading of the MAF flow meter sensor. This will produce a too-lean mixture, which is responsible of the hesitation, the loss in power and the check engine light.
If your car engine, besides the hesitation, is also producing knocking or engine pinging at high loads, like when going up through a hill, it is attributed to this too-lean condition.
Before going to an auto parts store or to a mechanic to fix the problem, you should try fixing it your self. If the problem is a dirty MAF flow meter sensor, the solution is to clean it, plain and simple. That may save you some money that a mechanic will charge for cleaning it (you could do the same) or for replacing the part when most of the times it is not damaged, just dirty or contaminated

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1 Answer

I recently purchased a Hyundai Genesis 4.6 and I purchased somw extra rims for snow tires but they do not seem to fit. I think they came off a 3.8 Genesis but why would they rub against the brakes in...

If they're rubbing on the brakes, it's most likely because with your V8 model, the front brakes are larger than those on the V6 model (it's not uncommon to see this, due to the greater power of your engine and higher speeds the car can reach). A spacer really won't help, because it moves the wheel outward, where you need more clearance in the inside diameter of the wheel. You'll need to find larger wheels to fit your car.

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1 Answer

Genesis technology pkg. how to stop mirrors from tilting when shi

On the drivers sidedoor mirror controls put the morror selector to the middle position.

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1 Answer

My 1995 chevy silverado 5.7L V8 Auto is acting up.

With white buildup accumulating so quickly after a plug change, it is a sign that you have worn valve guides. But the up side to this is that if there is no sign of fresh oil on the plugs then the oil is not passing the valve guides. This means only head work, and not an engine overhaul.

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