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CVT hesitation and jerking at low speeds on my 2024 Integra Base

0

Mike T. · rep 0 · May 26, 4:00 AM · 1 replies · solved · Question

Vehicle: 2024 Acura Integra Base

Hi all,

I just got my new 2024 Acura Integra Base model a few months ago, and I've noticed a strange hesitation and sometimes a slight jerking motion, especially when I'm accelerating from a stop or at very low speeds (under 15 mph). It feels like the CVT is struggling to find the right ratio.

It's not constant, but it's frequent enough to be concerning for a brand new car. It's most noticeable in stop-and-go traffic. Is this normal behavior for the Integra's CVT, or should I be worried? I'm coming from a traditional automatic, so maybe it's just me getting used to it.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 26, 4:00 AM

0

ClearTheCode admin answer:

While Continuously Variable Transmissions (CVTs) can have different driving characteristics compared to traditional automatics, noticeable hesitation and jerking, especially on a new vehicle, warrant investigation. Here's what could be happening:

  1. Normal CVT Behavior: Some drivers new to CVTs might perceive their unique power delivery as hesitation. CVTs don't have distinct 'shifts' but rather continuously adjust ratios. However, a significant 'jerking' motion is generally not normal.
  2. Transmission Software Adaptation: Modern transmissions, including CVTs, have adaptive learning. The transmission control module (TCM) learns your driving style over time. Sometimes, this learning phase can result in inconsistent behavior. A dealer can reset the transmission's adaptive memory, allowing it to relearn.
  3. Fluid Level/Quality: Although less likely on a brand new car, incorrect transmission fluid levels or quality could contribute to performance issues. This should be checked by a professional.
  4. Sensor Malfunction: Sensors like the transmission fluid pressure sensor or input/output speed sensors could be providing incorrect data to the TCM, leading to poor performance. This could trigger a diagnostic trouble code (DTC).

Potential OBD Codes: If there's a significant issue, your vehicle's computer might store a code. Common CVT-related codes include:

  • P0700: Transmission Control System Malfunction (a generic code indicating a TCM issue)
  • P0741: Torque Converter Clutch Circuit Performance or Stuck Off
  • P0796: Pressure Control Solenoid 'C' Performance or Stuck Off

When to See a Shop: Since this is a new 2024 model, it's best to have your Acura dealership inspect it. Describe the symptoms clearly, noting when and under what conditions the hesitation and jerking occur. They can:

  • Check for any stored diagnostic trouble codes (DTCs).
  • Inspect transmission fluid levels and condition.
  • Check for any technical service bulletins (TSBs) related to CVT performance for your specific model year.
  • Perform a transmission software update or reset the adaptive memory.

Do not ignore these symptoms, as early diagnosis can prevent more significant issues down the line.

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