Fitted to Limited and Platinum; SR5, TRD Sport and TRD Pro use conventional coils and are not exposed to this. The air springs develop slow leaks, the compressor overworks to compensate, and then the compressor fails too.
Confirm the trim first. Then leave the truck parked overnight if you can, and check the rear has not settled by morning. Listen for the compressor cycling repeatedly at idle, look for an uneven rear ride height, and check for suspension warning lights.
Est. cost: Compressor alone $2,600–$2,700; a full air-spring-and-compressor repair can exceed $2,500. A coil conversion kit is the common long-term fix.
Source: RepairPal; Strutmasters Sequoia suspension data