The seat fails to lock, it will slide unless I manually push the lever to move the seat into a locked position
My car has 42000 miles.
My car has an automatic transmission.
The seat slider mechanism could be rusty or stuck do to the spring being broken or missing. You will have to remove the seat and check the track with the seat upside down. This will help you determine what is missing or damaged on the seat track. If you need further assistance with your passenger seat, then seek out a professional, such as one from Your Mechanic, to help you.
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