The largest online repair guide library for every car

About us
Contact support
FAQ
Sign up
Sign in

2020 Mazda 3 Automatic Transmission Hesitation and Hard Shifts

0

Paul Z. · rep 0 · May 22, 4:49 AM · 1 replies · solved · Question

Vehicle: 2020 Mazda 3 Premium

I'm experiencing some concerning issues with the automatic transmission in my 2020 Mazda 3 Premium, which has the 2.5L engine. It's got about 45,000 miles on it now.

Lately, it feels like the transmission is hesitating quite a bit when shifting from 2nd to 3rd gear. Sometimes, it even gives a noticeable jolt or hard shift, which is really unsettling. It doesn't happen all the time, but it's becoming more frequent, especially during city driving.

I haven't seen any warning lights on the dash, and the fluid level seems okay, though I'm not sure how to properly check its condition. Has anyone else with a 2020 Mazda 3 experienced similar transmission behavior? What could be causing this?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 4:49 AM

0

ClearTheCode admin answer:

Transmission hesitation and hard shifts in a relatively new vehicle like your 2020 Mazda 3 can be concerning. Here's a breakdown of potential causes and what to do:

  1. Transmission Fluid Condition and Level: Even if the level appears okay, the fluid's condition is critical. Old, burnt, or contaminated transmission fluid can lead to poor shifting. Mazda transmissions use specific fluid (usually Mazda ATF FZ). A professional can check the fluid's color and smell, and perform a fluid flush and filter replacement if needed. Low fluid can also cause these symptoms, so ensure it's checked correctly when the transmission is at operating temperature.
  2. Software Updates: Modern transmissions are heavily controlled by the Powertrain Control Module (PCM) or Transmission Control Module (TCM). Sometimes, manufacturers release software updates to address known shifting issues or optimize performance. A Mazda dealership can check if there are any pending software updates for your specific vehicle's transmission.
  3. Transmission Solenoids: Solenoids are electronic valves that control the flow of transmission fluid, directing it to engage different gears. If a solenoid is sticking or failing, it can cause delayed or harsh shifts. Diagnostic tools can often pinpoint a faulty solenoid.
  4. Internal Wear: While less common at 45,000 miles, internal components like clutch packs or valve body issues could contribute to these symptoms. This would typically be a more complex and costly repair.

When to See a Shop:

Given that this is a transmission issue, it's highly recommended to have your Mazda 3 inspected by a qualified mechanic or a Mazda dealership as soon as possible. Transmission problems can escalate quickly. They have specialized diagnostic equipment to read transmission-specific fault codes (even if no check engine light is on), check fluid pressure, and perform a thorough inspection. Ignoring these symptoms can lead to more severe and expensive transmission damage.

Menu

Help & account