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2018 TLX V6 A-Spec Transmission Jerking and Hesitation

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Ryan M. · rep 0 · May 22, 5:02 AM · 1 replies · solved · Question

Hey everyone, I'm having some frustrating issues with my 2018 Acura TLX V6 A-Spec. Lately, the transmission feels really clunky and hesitant, especially when shifting at lower speeds, like in stop-and-go traffic. It often jerks noticeably when downshifting from 3rd to 2nd or 2nd to 1st.

Sometimes, it feels like it's searching for the right gear, and there's a delay before it engages. I've heard about issues with the 9-speed automatic in these cars, but I'm not sure if this is normal or something I should be seriously concerned about.

Has anyone else experienced similar problems with their TLX? What was the fix? I'm worried about long-term reliability.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 5:02 AM

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ClearTheCode guidance (Acura · Buying & ownership)

Summary: For 2018 TLX V6 A-Spec Transmission Jerking and Hesitation, work through these steps on your 2016+ vehicle:

  1. Confirm the symptom — note when it happens (cold start, highway, after fuel fill, etc.).
  2. Scan codes — save all pending/stored DTCs; don't clear until you've recorded them.
  3. Check TSBs & recalls — look up your VIN for open campaigns and known fixes.
  4. Inspect the obvious — related fuses, connectors, fluid level, and recent repairs.
  5. Test the common fix — follow model-specific service procedures; one change at a time.
  6. Escalate if needed — burning smell, no brakes, overheating, or stalling in traffic → shop visit.

Owner reported: Hey everyone, I'm having some frustrating issues with my 2018 Acura TLX V6 A-Spec. Lately, the transmission feels really clunky and hesitant, especially when shifting at lower speeds, like in stop-and-go traffic. It often jerks noticeably when downshifting from 3rd to 2nd or 2nd to 1st.

Sometimes, it feels like it's searching for the right gear, and there's a delay before it engages. I've heard a…

This is educational guidance, not a substitute for hands-on diagnosis.

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