engine revs but car does not accelerate · gears slip
The engine RPM rises but the car does not accelerate proportionally, or the transmission seems to hesitate or slip between gears.
Check the transmission fluid level and condition (color and smell) if the dipstick is accessible on your model - dark, burnt-smelling fluid is a clear warning sign.
Not recommended beyond getting to a workshop. Continuing to drive with a slipping transmission risks turning a repair into a full replacement.
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Descriptions are for guidance only and do not replace a workshop inspection. If you are ever unsure whether it is safe to keep driving, pull over in a safe spot.
Transmission won't shift gears
SeriousThe transmission is stuck in one gear and will not shift up or down as it normally would, or refuses to engage a gear at all.
Whining noise when accelerating
WarningA rising, whining or whirring noise that gets louder or higher-pitched as you accelerate, and quiets down when you let off the gas.
Burning smell coming from the transmission
SeriousA sharp, burnt smell (often described as a burnt toast or hot metal smell) noticeable after driving, particularly linked to the transmission area.
Delay before the car engages gear
WarningAfter shifting from park into drive or reverse, there is a noticeable pause of a second or more before the car actually starts to move.
