What it means
The gear-lever push-pull switch circuit has a fault. The code does not specify the switch’s design or the transmission’s response to the fault.
At a glance
- Usually lights the check-engine light
How it works
The gear lever's push-pull switch sends a shift-anticipate request to the transmission control module. P0825 indicates a fault in that switch circuit, but the code alone does not identify the switch design or which electrical condition failed.
Common causes
Most likely first.
- Faulty gear lever push-pull switch
- Open or short in the switch wiring
- Loose, damaged, or corroded connector
- Fault in the gear lever assembly
- Fault in the transmission control module
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
How to diagnose it
- Record freeze-frame data and check transmission live data for the push-pull switch state while operating the lever control, noting whether the request changes consistently.
- Inspect the push-pull switch, its connector, and the gear lever assembly for damage, sticking, loose fit, or corrosion.
- Check the switch wiring for opens, shorts, pinching, or chafing, and verify the connector terminals are secure.
- Test the switch circuit and each switch state against the manufacturer's specification while operating the control.
- If the switch and wiring pass, assess the gear lever assembly and transmission control module for a confirmed fault.
Common fixes
- Free a sticking push-pull control or secure its loose connector.
- Repair damaged or shorted switch wiring.
- Replace a faulty gear lever push-pull switch.
- Repair or replace the gear lever assembly if the switch is integrated and the assembly is faulty.
- Repair or replace the transmission control module if tests confirm an internal fault.
Can I keep driving?
If shifts are delayed, harsh, slipping, or the transmission is locked in one gear, avoid high-speed driving and heavy acceleration; continued slipping can worsen transmission damage. If the vehicle cannot shift predictably, stop safely and arrange recovery.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.