martinsilber20
Cruze Automatic Transmission Problems
Summary of the thread
A 2018 Chevrolet Cruze with automatic transmission issues, such as implausible shifting and emergency mode activation, was suspected to be caused by voltage problems. The initial suggestion was to check the transmission fluid level and condition, as well as the battery voltage when the engine is running. It was advised that if the car runs with less than 12V, there could be issues, and professional analysis of the transmission oil might be necessary. Eventually, a workshop confirmed that undervoltage led to the transmission oil wearing out, and the issue was resolved.
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4 comment(s)
martinsilber20 (community.author)
Thanks! What's the recommended voltage range I should be looking for when the engine is running? Also, can I test the transmission oil myself, or should I leave that to professionals?
luisaeis2
If the car runs with less than 12V you may have some problems. Regarding the oil, you can check the level and color, but determining if it's truly 'worn out' requires professional analysis. Given the symptoms, it's probably wise to get it checked by a qualified technician to avoid further damage. The repair cost will be lower.
martinsilber20 (community.author)
Thanks for the advice! I went to a workshop, and they confirmed that the undervoltage led to the transmission oil wearing out. The repair cost was 240€. Thanks for your time and expertise!
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CHEVROLET
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CRUZE
luisaeis2
I had a similar issue with my Cruze. The transmission was acting up. First, check the transmission fluid level and condition. If it's dark or smells burnt, that's a red flag. It might be a fluid change, but don't rule out electrical issues. What's the battery voltage when the engine is running?