We drove up a very tall interstate bridge (190 ft high) with cruise control on 60mph. As we coasted down the other side of the bridge the ETC, ENGINE & TRACTION lights came on. It then limited acceleration & was stuck at 1500. RPM despite gas pedal position. After coasting down to about 40mph I turned off vehicle in neutral and back on. The lights went out except the engine light. We drove another 80 miles with no issues except engine light staying on. We had part store run diagnostic and a few codes came up. P2118 Throttle Control Actuator Motor Current Range/performance, P2110 FORCED LIMITED REVOLUTIONS Per Minute, P0740 torque converter clutch solenoid circuit/open came up 4 times & U0416 Invalid Data Received From Vehicle Dynamics Ctrl . We cleared the codes and drove another 5 miles. No lights at all have come back on. We did recently replace the battery. We also just purchased an after market key fob we were using for 1st time. One of the codes did show P0513 INCORRECT IMMOBILIZER KEY but I think that was from when the locksmith was programming it yesterday. Thank you so much for reading all of this and hoping somebody can help us.

 

As far as the P0513..yes most likely as you stated As for the other glitches, IF they occured as how you posted...I'd have the trans oil level checked, sounds like it's a little low particularly from the steep climb/descent. The activation of all those lights will put it into "limp mode", once you got back on the horizontal and restarted, most of those codes will clear out as the trans had fluid to work with again. IF it is still happening on "flatter ground" then definitely time to have all checked out.

 

Thanks so much for taking the time to reply. We had it checked out and they found metal shavings in the transmission pan. They also stated sludge in the pan. They recommended a rebuild of the transmission.