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2020 Aviator Transmission Hesitation & Harsh Shifting

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Mike T. · rep 0 · May 25, 4:33 AM · 1 replies · solved · Question

Vehicle: 2020 Lincoln Aviator Reserve

My 2020 Lincoln Aviator Reserve, with about 45k miles, has been acting up lately. I've noticed a significant hesitation when accelerating from a stop, almost like it's trying to decide which gear to be in. It's an automatic, of course.

Sometimes, especially when downshifting or shifting at lower speeds, there's a really harsh jolt. It feels like the transmission is slamming into gear. It's not consistent, but it's happening more frequently now.

I'm concerned about the long-term reliability of the 10-speed transmission. Is this something others have experienced? Should I be worried about a major repair soon?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 4:33 AM

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Transmission issues like hesitation and harsh shifting in your 2020 Lincoln Aviator, which uses the 10-speed automatic transmission (likely a variant of the 10R60/10R80), can be concerning. Here's what you should know:

  1. Software Updates: Often, these symptoms are resolved with a software update for the Powertrain Control Module (PCM) and Transmission Control Module (TCM). Manufacturers frequently release updates to refine shift logic and improve overall transmission behavior. Check with your dealership for the latest available updates.
  2. Transmission Fluid: While less common on newer vehicles, incorrect transmission fluid levels or degraded fluid quality can contribute to shifting issues. However, these transmissions are often 'sealed for life' or have very long service intervals, so this is typically a dealer check.
  3. Mechanical Issues: If software updates don't resolve the problem, it could indicate a mechanical issue within the transmission, such as problems with the valve body, solenoids, or clutch packs. These are more serious and require professional diagnosis.

When to See a Shop:

  • Immediately if the problem worsens significantly, you hear grinding noises, or the vehicle enters 'limp mode' (restricted performance).
  • As soon as possible for diagnosis. Ignoring these symptoms can lead to more extensive and costly repairs down the line. A dealership will have the specific diagnostic tools to read transmission-specific codes and perform necessary updates or repairs. There might be a Technical Service Bulletin (TSB) addressing this specific concern for your model year.
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