CarFix Answers

2018–2020 Toyota Camry: 8-speed transmission hesitation or harsh shifting

Likely causes, ranked

  1. Shift calibration causing hesitation from a slow roll (ECM update T-SB-0152-19)Shop
  2. Shift shock entering gear or reaccelerating (earlier ECM update)Shop
  3. Normal relearning after a battery disconnect$0–$0DIY

Real-owner fix counts will appear here as reports come in.

DIY or shop: See DIY or shop section

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Symptom: You slow almost to a stop, press the gas, and the car hesitates or feels like it slips before it picks a gear. Some owners also feel a bump when shifting into gear or speeding back up.

Likely causes

  1. Calibration. Toyota's T-SB-0152-19 updates the software to fix hesitation when accelerating from a rolling stop. A revision added 2018 models. Toyota Nation owners report a clear improvement afterward.
  2. Shift shock. An earlier software update targeted the bump when shifting into gear, which is a different symptom.
  3. Relearning. Shifts can feel off for a while after the battery has been disconnected.

Cost

Updates covered by a bulletin are usually free under warranty. Out of warranty, ask the dealer what they'll charge in labor before you approve the work.

DIY or shop?

Dealer. The fix is a software update.

Useful steps

  1. Show the service advisor the rolling-stop situation where it happens.
  2. Ask specifically for T-SB-0152-19 Rev1. Some owners had to try a second dealer.
  3. Give the transmission a few drives to relearn after the update.

Vehicle focus: 2018–2020 Toyota Camry.

Safety / mechanic note

Hesitating while pulling into traffic is risky. Verify with a mechanic if it gets worse or a warning light comes on.

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Recalls & service bulletins

Technical service bulletins

  • T-SB-0152-19 2020-03-09 Camry 2.5L 8-speed: hesitation when accelerating from a slow roll; ECM calibration update and relearn drive (revision adds 2018). Details

NHTSA complaints: 419 keyword-matched complaints for Toyota Camry 2018–2020 (of 1,420 total complaints queried, NHTSA complaints API by model year, queried 2026-10-15).

Always check your VIN for open recalls at nhtsa.gov/recalls.

Sources

What actually fixed it?

Had this problem? Tell other owners what the real fix was. Reports are counted above; we never show made-up numbers.

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