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You can pull the calibration number fairly easily with Techstream.
Select Health Check Select Just Powertrain Next and then you will see Just hit continue when you see this screen Calibration info will show up when finished.
I think this one is posted elsewhere but just another reminder for '14-'16 owners.
Some 2014 – 2016 model year GX 460 vehicles may exhibit a MIL “ON” condition with Diagnostic Trouble Code (DTC) P2440 (Secondary Air Injection System Switching Valve Stuck Open, Bank 1) or P2442 (Secondary Air Injection System Switching Valve Stuck Open, Bank 2) and under some conditions may enter limp mode (limited throttle input ~ 25mph). This condition can be triggered by sub-freezing ambient temperatures.
Can't seem to find original PDF and has been pulled online. I believe resolution was just to ensure that Infotainment had been updated by owner to the latest rev. I believe attached is an earlier version of same TSB.
"Some 2010 – 2011 model year GX 460 vehicles may exhibit an intermittent MIL “ON” condition with Diagnostic Trouble Codes (DTCs) P2111 and/or P2112 (Throttle Actuator Control System) stored in the Engine Control Module or ECM (SAE Term: Powertrain Control Module/PCM). Use the following repair procedure to address this condition."
#TSB - Misc TSBs - Free access via NHTSA
