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Many other car brands (often just the instrument cluster though). Otherwise probably not much consumer stuff, way more industrial/medical/infrastructure fields.

BMW’s iDrive (used in all their production cars since around 2011) uses it

Until recently, Cisco's IOS-XR was based on the QNX microkernel.

https://en.wikipedia.org/wiki/Cisco_IOS_XR

195 million vehicles, and "We are the embedded OS of choice for ventilators, train controls, factory automation systems, medical robots and more."

The navigation/entertainment unit on our Suzuki uses it (I pulled apart the firmware update out of curiosity)