lilly_johnson42
Captiva transmission issues
Summary of the thread
A 2015 Chevrolet Captiva is experiencing transmission issues, including warning lights, error codes indicating a faulty transmission oil temperature sensor, and symptoms like slipping and grinding noises. The suspected cause is a low transmission oil level, which can lead to overheating and improper gear engagement. The suggested solution is to check and top up the transmission oil level and replace the faulty sensor, which was confirmed and resolved at a workshop.
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4 comment(s)
lilly_johnson42 (community.author)
Thanks for the quick reply. I haven't checked the oil level yet, to be honest. Where exactly is the dipstick (or fill plug, if it doesn't have a dipstick) located on the Captiva? I want to make sure I'm checking the correct point, as I'm not that familiar with Captiva's transmission setup.
hannahswift1
On mine (it's an automatic) there's no dipstick, it's a fill plug on the side of the transmission. It's a bit of a pain to get to. Honestly, if you're not sure, I'd recommend taking it to a reputable workshop to get the level checked and topped up if needed. Could save you a lot of hassle and potential damage.
lilly_johnson42 (community.author)
Appreciate the advice. I'll take it to a workshop to have them check the transmission oil level and the sensor. Just got it back: indeed it was the oil temperature sensor, and the oil level was low. Total damage was 365€ including the sensor replacement and oil top-up. Thanks again!
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CHEVROLET
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CAPTIVA
hannahswift1
Hey, sounds familiar. I had almost the exact same symptoms with my Captiva (gasoline as well). MIL light, error codes pointing at the temperature sensor, and the gearbox acting up. Did you check the oil level in the transmission? That would be my first guess. If it is too low it can cause the transmission to overheat because there is not enough fluid to dissipate the heat, triggering the sensor and causing the emergency mode. A low oil level can also cause the gears to not engage properly when shifting because there is not enough pressure.