Hi,
Could anyone guide me how to fixed the issue. When the car is cold and drive for a couple of minutes the shifting is fine. But when it was hot running around 15 to 20 minutes, specially driver on many corners once slow down there is a jerk in between 2nd and 3rd gear and when I park and reverse the car there is no reverse. During that jerking sometimes AT on dashboard shown, what I did is remove the supply from the battery for about 5 mins and AT is gone. Please help... It is automatic transmission.

 

What are the miles on Mazda
When was the last service to the transmission (date and miles) done and what exactly was it ?

Stop disconnecting the battery all you are doing is temporarily turning off the caution light!!!!!!!
You also could be adding to an already existing unresolved problem!

 

- It has 224K miles on it.

- Last Feb 2024 it only run around 18K Miles from the time of the last service.

- Yes thank you appreciate it I did not disconnect it.

During computer check when AT on dashboard show error are this - U0402:92-8A, P0733:00-6C, P0744:00-6C, P0767:00-64
When AT is not shown Transmission Pressure Control Switch is the show warning.

- This week I plan to change the Oil without changing the filter is that advisable?

I still can drive but can't drive for about 30 mins the problem arise, the jerking during cornering and slowing down occurs and when parking can't reverse.

 

Based on the LIMITED information (I did ask for exactly what service was done last) and your description......an assumption is that NO transmission service recently or has ever been done thus the basic conclusion on your information your transmission is failing and likely not reparable?
However only a qualified Transmission service shop with equipment design to diagnosis and test the state of condition of an automatic transmission can definitively answer the transmission issue because they would have the Mazda physically there to run tests.
Sorry dude I hate posting this kind of information to members.

 

It's ok the last option is to change the transmission but if I can fixed this I share this here so that somehow they be a good help for others. Thanks appreciate it.

 

Good thought.


This is important for ALL members to read: Not servicing your automatic transmission regularly even dure the warranty period regardless if the auto manufacture states none service or lifetime transmission will more than often result in transmission issues that will be very coasty to repair. My advice is at least start with a basic fluid and filter service at no more than 40K miles or sooner. It will in no way impact by way of voiding the new car WARRATY from the auto manufacture unless that auto manufacture states explicitly NOT to do a basic filter and fluid change.

In the US we have the Magnuson–Moss Warranty Act to protect consumers from auto manufactures disclaiming many warranties and use of none oem parts and fluids.

Magnuson–Moss Warranty Act - Wikipedia