Have You Encountered a Hard o r Jerky Gear Shift?

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Have You Encountered a Hard o r Jerky Gear Shift?

Many Hilux owners experience rough gear changes, especially in automatic variants. Have you faced this issue? Was it due to transmission fluid, software updates, o r mechanical failure?

Zarnish asked on 11 Feb 2025 10:08:16 am

1 Answer

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Car Mechanic Expert - on 11 Feb 2025 10:31:50 am

Rough gear changes in automatic Hilux models can be caused by low o r degraded transmission fluid, outdated software, faulty solenoids, o r mechanical wear. One of the most common reasons is old o r low transmission fluid, which can lead to delayed o r hard shifts—a fluid change o r flush often improves smoothness.

Another potential cause is transmission control module TCM software issues, which can lead to jerky shifting. In some cases, a software update o r ECU reprogramming helps resolve shifting problems. Faulty shift solenoids o r a worn torque converter can also cause rough gear changes, requiring diagnostics and possible replacement.

Regular transmission servicing, fluid changes, and software updates can help prevent rough shifts and maintain smooth driving performance.