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Hyundai ix35 Gas Model with Automatic Transmission Won't Start - Control Display Issues

Skoczy2018 28890 14
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  • #1 17330003
    Skoczy2018
    Level 2  
    Posts: 3
    Rate: 19
    Good morning,
    I have a problem with Hyundai ix35 in gas with automatic transmission.
    The following controls are displayed:
    Hyundai ix35 Gas Model with Automatic Transmission Won't Start - Control Display Issues
    Does anyone know what to do?
    greetings
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  • #2 17330228
    piotrekwoj1
    Level 43  
    Posts: 10332
    Help: 927
    Rate: 3362
    He does not see the key like this on mine, but what is the reason will be known only after the diagnosis.
  • #3 17330416
    Skoczy2018
    Level 2  
    Posts: 3
    Rate: 19
    The key was :) Just then the control light came on and went out after a while.
    The starter beeps when the start is activated.
    This is not a battery, because we checked.
    Could it be any fuses?
  • #4 17330845
    piotrekwoj1
    Level 43  
    Posts: 10332
    Help: 927
    Rate: 3362
    Then describe what is happening concretely.
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  • #5 17331020
    Aleksander_01
    Level 43  
    Posts: 12627
    Help: 1151
    Rate: 3352
    This "pyk" is the end of the brushes or the machine or the rusted "plus" connection, or the lack of mass on the rear housing of the starter.

    In the Korean, this yellow light with the key goes out only after starting, so leave it alone.












    '
  • #6 17331392
    Skoczy2018
    Level 2  
    Posts: 3
    Rate: 19
    Description of what I do:
    I get in the car
    souls brake and start button
    electric works: radio, air blowers
    and I hear the mentioned "pyk"
    the lights in the picture are on and the car does not start

    I wonder if this is a matter of a blown fuse?
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  • #7 17503612
    litwincrew
    Level 11  
    Posts: 98
    Rate: 23
    Hello

    Did you diagnose the fault ??? I have the same problem '10 Gasoline 2.0 Theta. He makes a bang and nothing more ....
  • #8 17587419
    rav88pl
    Level 10  
    Posts: 40
    Rate: 22
    litwincrew wrote:
    Hello

    Did you diagnose the fault ??? I have the same problem '10 Gasoline 2.0 Theta. He makes a bang and nothing more ....



    Hello, were you able to diagnose the fault? I have exactly the same. The starter knocks once and starts. Briefly turns and starts and the car drives.
    I will add that cruise control does not work for me either. It can be turned on but the set button does not work. The clutch sensor seems good to me because I was checking with the meter whether there was a short circuit after pressing.
    I start the keyless button
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  • #9 17588611
    litwincrew
    Level 11  
    Posts: 98
    Rate: 23
    You should check the clutch pedal sensor - there are two one from the clutch the other from the starter on my from the clutch hung after start up works ok. Ponoc was a service action
  • #10 17588616
    rav88pl
    Level 10  
    Posts: 40
    Rate: 22
    Heheh thanks exactly 30 minutes ago I found it on the internet. I unfastened my ankle and the car smokes from an arrow. I need to replace this sensor. The electrician told me to replace the computer to program it, he broke the ankle from the starter and routed the cable to make a starter pin. Hahahah we have such professionals.
  • #11 17588663
    user64
    Level 35  
    Posts: 3521
    Help: 219
    Rate: 688
    rav88pl wrote:
    The electrician told me to replace the computer to program it, he broke the ankle from the starter and routed the cable to make a starter pin.

    Maybe you were at the baker's, because it doesn't look like an electrician with such work.
  • #12 17588691
    rav88pl
    Level 10  
    Posts: 40
    Rate: 22
    user64 wrote:
    Maybe you were at the baker's, because it doesn't look like an electrician with such work.



    Proud big signs electrician car repair abs esp ECU starters murmurs goodies. I still got bitten in the car and I weather it for 2 days.

    I generally leave it for posterity.
    Fault:
    -Auto does not start when the button is pressed. It smoked at all
    -The timer does not allow you to set SET and sometimes it simply cannot be turned on.
    -I saw a red error from the downhill assistant (then it caught fire when I rode a bit)
    Diagnosis:
    -2 clutch position sensors. With the meter checking the short circuit after pressing and squeezing.
    Bingo.
    Unplugging the plug from the upper helped start the car (the upper button is pressed when the clutch is loose, so that 2 wires have a closed circuit) unplugging the ankle has opened the circuit and the computer thinks that the clutch is pressed, so it starts.
  • #13 17588745
    litwincrew
    Level 11  
    Posts: 98
    Rate: 23
    You do not want to know what the mechanic thought I was already looking for a new engine controller a new starter after rubbing the engine and no one thought that something may not contain the clutch pedal ... Well we have such mechanists the era of splendor is behind them ... The only thing I can recommend you is the purchase of this switch in Aso, - probably no replacement exists, and how to buy a shit and every now and then at the pedal to puncture nerve damage. Sorry that I wrote back so late, but I tried and wanted to help :)
  • #14 17588755
    rav88pl
    Level 10  
    Posts: 40
    Rate: 22
    Oh, and I will add that the ground cable underneath is worth checking such a copper ribbon on the right under the engine at the wheel arch - I had it broken.

    PS. the mechanic was not enough that he snapped my pipes in the car for 2 days and I ventilated it, he turned the ground screw to the car body.
  • #15 21359873
    Keke2037
    Level 2  
    Posts: 2
    Rate: 3
    Today my Hyundai went crazy. Yesterday no sound at all from the speakers. This morning the car opened from the remote control, there was power - the clocks were on, etc. Unfortunately the car could not be started, only a specific "click" could be heard. Now everything is missing. The clocks do not start. The only message is a blinking yellow car with a key. The battery is working and a new battery in the keys didn't help either.
    Hyundai ignition lock with a key icon illuminated. .
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Topic summary

✨ The discussion concerns a Hyundai ix35 gasoline model with automatic transmission that fails to start, displaying warning lights including a yellow key symbol on the control panel. The vehicle exhibits a single starter click ("pyk") without engine turnover. Battery condition was verified as good, and the issue is suspected to be related to electrical faults such as blown fuses, poor starter ground connections, or starter motor brush wear. A key diagnostic focus is on the clutch pedal position sensors—two sensors that influence starting authorization and cruise control functionality. Faulty clutch sensors can cause the ECU to misinterpret clutch status, preventing engine start and disabling cruise control set functions. Unplugging one clutch sensor temporarily allowed starting, indicating sensor failure. Additional recommendations include checking the starter's ground cable (copper ribbon under the engine near the wheel arch) for breaks or poor contact. Some users reported that improper repairs or bypasses (e.g., wiring starter pins) were attempted by unqualified technicians. The problem may also trigger error messages related to downhill assist. Overall, the root cause is often a defective clutch pedal sensor or starter electrical faults rather than the battery or ECU. Replacement of the clutch sensor and thorough electrical diagnostics are advised.
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FAQ

TL;DR: Two clutch switches often block ix35 starts; "You should check the clutch pedal sensor—there are two." Test by unplugging the upper switch, inspect grounds, and replace the failed switch to restore starting and cruise SET. How do I fix a no-start with a key icon or single click? [Elektroda, litwincrew, post #17588611]

Why it matters: This helps Hyundai ix35 owners quickly isolate no-start causes and avoid unnecessary ECU or starter replacements.

Quick Facts

What does a single “click” mean when I press Start on my ix35?

It signals the starter solenoid engages, but the motor doesn’t spin. Likely causes include worn starter brushes, a corroded positive lead, or a bad ground at the starter housing. “This ‘pyk’ is the end of the brushes…” Clean and retighten connections before replacing parts. [Elektroda, Aleksander_01, post #17331020]

Is the yellow car-with-key light an immobilizer error?

Not necessarily. On these Korean models the yellow key icon often stays lit until the engine actually starts. Treat it as normal unless it persists after successful starting. Focus first on starter, grounds, and interlock switches if you have a no-start with a single click. [Elektroda, Aleksander_01, post #17331020]

My cruise control won’t SET and the car struggles to start. What’s linked?

The ix35 uses two clutch switches. A failing upper switch can block the starter request and disable cruise SET. As one member put it, “You should check the clutch pedal sensor – there are two.” Replacing the faulty switch restores starting and cruise control behavior. [Elektroda, litwincrew, post #17588611]

How can I quickly test the clutch switch on a manual ix35?

Do a safe diagnostic bypass: 1) Locate the upper clutch switch at the pedal. 2) Unplug its connector to open the circuit. 3) Press Start; if it cranks, replace the switch. A multimeter can also confirm the switch’s open/closed state. Use this only for testing, then fit a new OEM switch. [Elektroda, rav88pl, post #17588691]

My ix35 lost dash power and only shows a blinking key. What should I check?

Inspect the engine-to-body ground strap. A member found the copper ribbon under the right wheel arch broken, which caused starting and electrical issues. Repairing the ground restored normal operation. Check and retighten the ground fastener to the body as well. [Elektroda, rav88pl, post #17588755]

Could a fuse be the issue if radio and blower work but it only clicks?

With accessories powered and one click heard, the starter circuit is energizing. Focus on the starter brushes/solenoid and the main positive and ground connections instead of fuses. Clean, tighten, and retest before replacing parts. [Elektroda, Aleksander_01, post #17331020]

Does unplugging a clutch switch really let it start, and is it safe?

Yes, unplugging the upper clutch switch opened the circuit so the ECU “thought” the clutch was pressed, allowing a start. Treat this as a diagnostic step only. Replace the faulty switch to restore proper safety interlock and cruise operation. [Elektroda, rav88pl, post #17588691]

Is there a recall or service action on the ix35 clutch switch?

A member reported a service action related to clutch pedal sensors. Ask your Hyundai dealer to check your VIN for applicable campaigns before buying parts. Bring your symptoms and any error notes. [Elektroda, litwincrew, post #17588611]

Which clutch switch should I buy—OEM or aftermarket?

Members recommend the OEM switch from the dealer (ASO). Aftermarket units were described as unreliable, leading to repeated faults and frustration. Fit OEM to avoid repeated pedal-area work and intermittent no-starts. [Elektroda, litwincrew, post #17588745]

I use push-button start. Does this advice still apply?

Yes. Cases in this thread involved keyless Start and manual transmission. The clutch switches still gate the starter request. Fixing the faulty switch restored both starting and cruise SET behavior on a push-button car. [Elektroda, rav88pl, post #17587419]

My mechanic suggests rewiring or ECU replacement for a no-start. Should I agree?

Be cautious. One user was told to reprogram/rewire, but the real issue was the clutch switch. After unplugging the switch, the car started immediately. Address interlocks and grounds first before approving invasive work. [Elektroda, rav88pl, post #17588616]

Where should I clean grounds when chasing a click-no-start?

Clean the starter’s rear housing ground point and the main engine-to-body strap. A bad ground can mimic starter failure. Remove corrosion, tighten fasteners, and retest. This simple step often resolves the single-click symptom. [Elektroda, Aleksander_01, post #17331020]

Audio died yesterday, then today it won’t start and only the key icon blinks—related?

A member reported that sequence. Power or grounding faults can affect both infotainment and starting. Verify battery connections and inspect the right-side engine-to-body ground strap. If push-button, also assess the clutch interlock on manuals. [Elektroda, Keke2037, post #21359873]
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