Aisin Automatic Gearbox Hesitation and Rev Flare
ModerateGearbox & TransmissionOn 1.5-litre T-GDI petrol models, the Aisin six-speed torque-converter automatic transmission can exhibit uncoordinated shift logic. When drivers demand sudden kickdown for motorway overtakes or ascending steep hills, the transmission frequently pauses momentarily before dropping ratios, which causes an audible engine rev flare before settling into gear. In stop-start urban traffic, it can also produce minor low-speed driveline shudders when coasting down to a halt.
Noticeable throttle hesitation before downshifting under kickdown, Engine revs spiking with loud exhaust roar prior to gear engagement, Slight clunk or hesitation when slowing down to junction crawling speeds
- Test kickdown response from 40mph on an open road to evaluate shift delay
- Check for transmission control module (TCM) software update records in the vehicle service logbook
- Assess low-speed creeping behaviour in reverse and forward drive for smoothness