Browse over 9,000 car reviews

Why does my 2012 Suzuki Swift struggle going up hills?

I have a 2012 Suzuki Swift CVT (K12B) and I am having an issue when going up hills and when accelerating to overtake. It feels like my transmission is slipping. The car begins to jerk or sometimes the rpm meter begins to fluctuate. Can you help with what is causing this?

This model Swift was recalled to check and tighten, if necessary, the bolts that connect the torque converter to the car’s engine. However, if these were to fail or fall out (as happened in some cases) it would be a one-off event and the car then wouldn’t work at all.

Your problem sounds more like a worn transmission which is not accepting the load you put on it when you try to accelerate. This could be worn bands or some other component inside the transmission. CVTs are pretty complex things and rely on physical parts like bands and pulleys as well as hydraulic bits and pieces to take drive to the wheels. It would also be worth checking the torque converter, as a damaged or worn unit can also produce the symptoms you’re seeing. I’d start with checking that the recall was carried out and work backwards from there.

Disclaimer: You acknowledge and agree that all answers are provided as a general guide only and should not be relied upon as bespoke advice. Carsguide is not liable for the accuracy of any information provided in the answers.


Have a new question for the CarsGuide team?
More than 9,000 questions asked and answered.
Complete guide to Suzuki Swift 2012
Complete guide to Suzuki Swift 2012 CarsGuide Logo
Reviews, price, specs and more