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2018 Camry SE Rough Shifting and Hesitation at Low Speeds

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Sarah K. · rep 0 · May 25, 1:25 AM · 1 replies · solved · Question

Vehicle: 2018 Toyota Camry SE

Hey everyone,

I've got a 2018 Toyota Camry SE with about 75,000 miles on it, and lately, I've been noticing some really rough shifting, especially when going from 1st to 2nd gear, and occasionally from 2nd to 3rd. It feels like the car hesitates for a moment before clunking into the next gear, particularly when I'm driving slowly in traffic.

There's no check engine light on, but the feeling is pretty unsettling. It's not constant, but it's happening more frequently now. Has anyone else experienced this with their Camry, or any other Toyota model from around the same year? I'm wondering if it's a known issue or something I should be seriously worried about.

Any advice or shared experiences would be greatly appreciated before I take it to the shop. Thanks!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 1:25 AM

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ClearTheCode admin answer:

Rough shifting and hesitation in your 2018 Toyota Camry SE can be caused by several factors related to the transmission and its control system. While a check engine light isn't on yet, this is a symptom that warrants attention.

Possible Causes:

  1. Low or Contaminated Transmission Fluid: The most common culprit. Old, dirty, or low transmission fluid can significantly impact shifting performance. Toyota transmissions are sensitive to fluid quality.
  2. Transmission Solenoid Issues: Solenoids control the flow of transmission fluid, directing it to engage different gears. A failing or sticking solenoid can cause delayed or harsh shifts.
  3. Transmission Control Module (TCM) Software: Sometimes, a software glitch or outdated calibration in the TCM can lead to shifting irregularities. A dealer might have a software update available.
  4. Valve Body Problems: The valve body is the hydraulic control center of the transmission. Wear or blockages in the valve body can affect fluid pressure and gear engagement.
  5. Internal Transmission Wear: Less likely at 75,000 miles if well-maintained, but internal component wear could also contribute.

When to See a Shop:

  • Immediately: If the problem worsens, you hear grinding noises, or a check engine light illuminates (especially with codes like P0700 - Transmission Control System Malfunction, or specific solenoid codes like P0751).
  • Soon: It's highly recommended to have a qualified mechanic or Toyota dealership inspect the vehicle. They can perform a diagnostic scan (even without a CEL, pending codes might exist), check transmission fluid levels and condition, and test the transmission's performance.

What to Expect:

  1. Fluid Inspection: The first step will be to check the transmission fluid's level, color, and smell. A fluid flush and fill might be recommended if it's dirty.
  2. Diagnostic Scan: Even without a CEL, a professional scan tool can often pull specific transmission fault codes or live data that points to the issue.
  3. Solenoid Testing: If codes are present, individual solenoids might be tested or replaced.
  4. Software Update: The dealer can check for and apply any relevant TCM software updates.

Addressing this issue promptly can prevent more extensive and costly transmission repairs down the line.

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