2020 Ceed GT - no acceleration upon first firm push of the accelerator after a cold start

[EatSuru]

Greetings, everyone. I have an unusual situation. It does not occur consistently and never when I bring it to Kia.

1 Initiate vehicle ignition from a cold state (after overnight cessation).
Allow the vehicle to warm up.
Achieve around 40 mph. Depress the accelerator firmly.
The vehicle downshifts, engine revs increase, nevertheless the automobile fails to accelerate, with rpm oscillating between around 250 and 500 RPM.
5. Release the accelerator and wait for 2-3 seconds. Depress the accelerator firmly once more
The vehicle accelerates as expected.

Subsequently, the vehicle operates normally. Even after deactivating the engine and allowing the vehicle to cool for many hours. This issue seems to occur only when the vehicle is started from a cold state, such as overnight or during very frigid weather, and consistently manifests during the first firm use of the accelerator.

It has been examined, but no issues were identified. Ironically, the last time I engaged it (yesterday), when I departed from the garage and accelerated rapidly, it occurred. It had been frigid for many hours.

Exhale.

 

The only alternative I see is to leave the vehicle with Kia overnight. To ensure it is chilly for their testing. Nevertheless, it does not occur consistently.

Enquired if it was only an idiosyncrasy of the vehicle. It has shown this behaviour since new (I purchased it at 1,700 miles - ex-demonstration).

Has anybody else experienced this?

[p00rmansp0rsche]

I am aware that my JD Generation GT, like with other turbocharged Kias I have seen here, restricts power until the engine reaches its usual operating temperature. However, to be candid, your problem does not seem to align with this, particularly if you can get normal acceleration shortly thereafter. It may be a malfunction in the programming of your DCT; consulting another owner would be advisable.

Your suggestion to leave the Ceed with them overnight is indeed prudent, but inconvenient. Do you own an OBD reader?

[EatSuru]

Thank you for your response. It is intriguing that you reference the DCT. It seems as if the gearbox or clutch is unable to comprehend the situation, becoming entangled in confusion.

I needed to research the definition of an OBD, since I do not own access to one. Are the inexpensive options of satisfactory quality? What may it reveal to me? Are you referring to fault codes?

[p00rmansp0rsche]

The DCT may exhibit some variability based on my readings here, impacting Ceeds, Proceeds, and Xceeds. Have you seen any discrepancies in the unusual behaviour between Normal and Sport modes?

Inexpensive Bluetooth OBD scanners are available that use a mobile application; however, they may only be effective for code identification, which would illuminate the EML, contrary to your situation. I own an earlier Autel scanner capable of recording minutes of live data from several sensors, which may be significant to a KIA mechanic (fortunately, I have not yet needed to use this feature!). Any scanner is preferable than having none, since costs have significantly decreased in recent years, making it unnecessary to spend much.

[EatSuru]

Thank you once again.

Regrettably, it exhibits the same behaviour in sport mode.

I will search for a scanner. Does attaching a scanner in any way void the warranty?

[p00rmansp0rsche]

No, it should not nullify the warranty; it only reads data. Codes may be deleted if retained; however, I recommend against this, since they provide valuable information for technicians at the KIA dealership.

Nonetheless, I would refrain from mentioning it to the merchants... Bear in mind that I am only an individual on the Internet with whom you have no prior acquaintance! 😁

UPDATE: I have just seen this post by Alan H. Several of his statements closely like yours; may this indicate a comparable concern?

[EatSuru]

Thank you! I will examine that post.