Retractable Master KeyThe master key can be retracted intothe remote transmitter. To use thekey, push the release button torelease the key from the transmitter.The key should be fully extended. Toretract the key, push the releasebutton and at the same time push thekey into the remote transmitter untilit is securely latched.Always use the fully-extended keywhen you insert it to the ignitionswitch. If the key does not fullyextend, the immobilizer system maynot operate properly and mayprevent the engine from starting.The key may come in contact withyour finger while being retracted orextended. Make sure your fingers donot touch the pivot of the key whenretracting or extending the key.RELEASE BUTTONPushKeys and Locks137Instruments and Controls11/08/29 10:08:20 12 ACURA MDX MMC North America Owner's M 50 31STX650 enu