Abstract: An alarm system for indicating improper towing of a vehicle having a standard transmission may embody up to two control switches in series electrical communication which are operable to activate a warning light and/or buzzer mounted within the interior of the towing vehicle. When towing a four wheel vehicle, it is desirable to make sure that the steering is not locked and also that the vehicle is not in gear. The first control switch comprises a normally open toggle switch which closes to activate the alarm circuit when the ignition switch is in the locked or not-turned-on position. The second independently operable control switch is fluid pressure activated and is opened in response to the detection of oil pressure resulting from the towed vehicle being in gear.