What are signs of a sticking brake caliper?

One wheel running unusually hot, pulling to one side, burning smell, rapid pad wear or reduced economy can all point to a binding caliper.

In relation to “What are signs of a sticking brake caliper?”, a warning light or new driving symptom is most useful when you record when it appears, what the car is doing at the time and whether any other warning or smell appears with it.

For “What are signs of a sticking brake caliper?”, after a short drive, unusual heat from one wheel, a burning smell or the car resisting movement can point to brake drag. Do not touch a hot wheel or disc with bare skin.

For “What are signs of a sticking brake caliper?”, the mechanical principles here are not unique to Northern Ireland, but the roadworthiness consequence is relevant to an NI driver. Use the vehicle handbook for model-specific instructions and the attached official sources — nidirect - The Highway Code for Northern Ireland, nidirect - MOT and vehicle testing, and GOV.UK - Vehicle recalls and faults — for legal or testing context. A dashboard symbol can mean different things between manufacturers, so the exact symbol and behaviour matter.

Practical next step for “What are signs of a sticking brake caliper?”: record the warning or symptom, check the handbook and basic safe-to-check items, and arrange diagnosis if the cause is not obvious. Stop driving if there is a red warning, loss of braking/steering, severe overheating, heavy smoke, major fluid loss or any other sign the car may be unsafe.