Auto Service Professional

DEC 2018

Magazine for the auto service professional

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Page 29 of 61

28 A S P D e c e m b e r 2 018 I P u s h B u t t o n S t a r t I'm sure you've heard the phrase, "Don't get pushy." Well, in the automotive world this phrase seems to have taken on a new meaning. In the last 10 to 15 years or so the number of buttons on a motor vehicle seems to have grown immensely. I remember back in the early days of my automotive career there were fewer buttons to push on the dash and more levers or sliding cable-operated controls than there are on today's vehicles. I remember I had a 1959 Dodge Royal which had a push button selector control for the auto- matic transmission (see Figure 1). Some vehicles still use a push button style transmission shi selector like the selector found in some of the Allison transmission-equipped trucks on the road today (see Figure 2). In this article, I want to focus on the advent of the push to start systems on the newer vehicles that are on the road. Push to start or keyless start systems have been in the automobile for quite some time now. Sometimes they are also called smart key systems. A smart key is an electronic access and autho- rization system that is available either as standard equipment or as an option in several car models. It was first developed by Siemens in 1995 and introduced by Mercedes-Benz under the name "Key-less Go" in 1998 on the W220 S-Class. Many car manufacturers have adopted the keyless start system due to many reasons. One main reason is there is less mechanical move- ment involved which will create less wear and tear. Another reason, of course, is the cost factor. Push button start technology Understanding this growing trend By Edwin Hazzard

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