Tiptronic Malfunction 2005 Hyundai Tucson tiptronic malfunctioning when switched to manual mode. It remains on D and sometimes flicker between 1 and D. Is there a sensor for this problem?

Hi,

Please check the heater motor and also the thermostat. If those don't work, then this can also lead to your ac/heating system to malfunction as well.

Please use autozone to get a free diagnostic run on your car to get a list of errors. Then, they can tell you which errors are relevant to your ac/heating issue.

Thank you.

A Tiptronic gearbox is almost an in-between of a manual and automatic car. It is basically an automatic gearbox that gives you the ability to change your gears manually. This allows you to have greater control than with an automatic and can be especially useful for going uphill. This is actually a fairly common feature in European cars and even some Japanese ones too. The difference between a Tiptronic gearbox and an automatic one is that Tiptronic ones have an option to switch out of its automatic mode so it will work like a manual car when you choose. Some newer models have safety features in places so it limits the speed of the car when it is in certain gears so it doesn't damage the car which is something to consider.

In the Drivers guide of your car you can find the oil specification according to the model. However the most commonly used oil and very popular is Mobile1 Synthetic ATF oil.

the sensor needs to be replaced intermittent means its on it way out clear it first to see if it will come back

Take it back to the dealer,

The brake light recall you got in the mail should fix the ESC light.

HYUNDAI IS RECALLING 532,633 MY 2006-2007 ACCENT, ENTOURAGE, SONATA, MY 2007 AZERA, ELANTRA AND SANTA FE, MY 2005-2007 TUCSON AND MY 2007-2008 VERACRUZ VEHICLES. THE STOP LAMP SWITCH IN THE AFFECTED VEHICLES MAY MALFUNCTION. A MALFUNCTIONING STOP LAMP SWITCH MAY CAUSE THE BRAKE LIGHTS TO NOT ILLUMINATE WHEN THE BRAKE PEDAL IS DEPRESSED OR MAY CAUSE THE BRAKE LIGHTS TO REMAIN ILLUMINATED WHEN THE BRAKE PEDAL IS RELEASED. A STOP LAMP SWITCH MALFUNCTION MAY ALSO AFFECT THE OPERATION OF THE BRAKE-TRANSMISSION SHIFT INTERLOCK FEATURE SO THE TRANSMISSION SHIFTER WOULD NOT BE ABLE TO BE SHIFTED OUT OF THE PARK POSITION. IT MAY ALSO CAUSE THE ELECTRONIC STABILITY CONTROL (ESC) MALFUNCTION LIGHT TO ILLUMINATE, AND IT MAY NOT DEACTIVATE THE CRUISE CONTROL WHEN THE BRAKE PEDAL IS DEPRESSED.

The stop lamp switch is used to judge if the acceleration system is abnormal. The stop lamp switch contains two switches monitored by the PCM. This is all covered at the dealer.

The stop lamp switch contains two switches monitored by the PCM. This will cause the issue you are having. It will illuminate the engine light also and cause the transmission to go into limp mode which is what's happening. Have replaced many for this same exact issue. This is what needs to be done next. The engine and ESC light come on together.

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When a 'check engine light' (MIL=Malfunction Indicator Lamp) is turned on, there is a DTC (Diagnostic Trouble Code) set/stored in the ECM/PCM (Engine Control Module/Powertrain Control Module). This code identifies which engine management system component/function experienced a malfunction. Once you pull/read this code, you may begin diagnosis.

You can Go to www.hmaservice.com and register your vehicle by VIN #.. you'll then have access to wiring diagrams, shop manuals, service bulletins, illustrations and procedures, etc.

where ever any common mechanic is trying to convence you have got 2stop. make sure your car gets looked at by an audi tiptronic specialist make sure you get them to sign the actual diagnostics and the codes to match the repairs if logical but remember " tiptronic transmission" your problem it'll star with the selector assimbly

You say up and down hill. Does it work OK on the flat? If so, there is a sensor for detecting the fact that you are going downhill and this holds the gear you are in when in auto mode to achieve engine braking. I believe failure of this should throw a fault code in the gearbox control unit if this is the case. It could be that the failure of this sensor is inhibiting tiptronic mode, but I can't be sure. Either way, get the dealer to read the codes from the gearbox, not just take it up the road and say they can't replicate the fault.

the switch in the shifter lever is most likely worn out or miss adjusted remove the cover from around the shifter look for two contact switches where the up down shift is press gently do they click no replace them yes move the closer to the strike plate