Acura RLX transmission slipping in first gear when cold on Acura RLX

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Acura RLX owners report experiencing transmission slipping in first gear when cold, often due to low transmission fluid levels. This issue can lead to difficulties in shifting and unusual noises from the transmission, particularly when the vehicle is first started in cold weather. Cold temperatures, especially at or below 32°F, can exacerbate these slipping problems, particularly in the morning after the car has not been driven overnight. Additionally, owners note that maintaining proper transmission fluid levels and following preventive maintenance procedures can significantly improve transmission performance and longevity. To mitigate these issues, it is advisable for owners to routinely check and top off transmission fluid, consider a transmission flush, and diagnose any underlying causes to prevent further damage.

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