1994 Chevrolet Blazer Owner's Manual - Page 66

Operation When you press UNLOCK, the driver's door will unlock automatically. If you press UNLOCK again within five seconds, all doors will unlock. All doors will lock when DOOR is pressed. The endgate glass will unlock when the trucksymbol button is pressed. Vehicles with automatic transmissions must have the transmissionin "P" (Park). Vehicles with manual transmission must have the parking brake engaged. Matching Transmitter(s) To Your Vehicle Each key chain transmitteris coded to prevent another transmitter from unlocking your vehicle. If a transmitter is lost or stolen, a replacement can be purchased through your dealer. Rememberto bring any remaining transmitters with you whenyou go to your dealer. Whenthe dealer matches the replacement transmitter to your vehicle, the remaining transmitters must also be matched. Once the new transmitter iscoded, the lost transmitter will not unlock your vehicle. You can match a transmitter to as many different vehicles as you own, provided they are equipped with exactly the same model system. (General Motors offers several different models of these systems on their vehicles.) Each vehicle can have only two transmitters matched to it. See your dealer to match transmitters to another vehicle. Battery Replacement Under normal use, the batteries in your key chain transmitter should last about two years. You can tell the batteries are weak if the transmitter won't work at the normal range in any location. If you have to get close to your vehicle before the transmitter works, it's probably timeto change the batteries. 2- 12