Transmission or Brake System Failure Preventing Movement
The vehicle is in gear but won't move when the engine is warm, indicating a potential transmission failure (e.g., CVT belt slip or torque converter issue) or a seized brake caliper. The warm engine condition suggests heat-related component failure.
Diagnosis Details
Possible Causes
CVT transmission belt slip or torque converter failure (common in Nissan Altima CVTs, especially when warm)
Seized brake caliper or stuck parking brake (mechanical binding preventing wheel rotation)
Transmission fluid low or degraded (causing pressure loss when hot)
Failed transmission control module or solenoid
Related OBD-II Codes
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What You Should Do
Do not attempt to drive.
Check transmission fluid level and condition (if accessible).
Inspect for brake drag by feeling wheel temperatures after a short attempt to move.
Have the vehicle towed to a qualified mechanic for diagnostic scan and transmission/brake inspection.
Related Repairs
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Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.
