Piston Slap: Reverse Light My Way Home, General Motors!

Sajeev Mehta
by Sajeev Mehta
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piston slap reverse light my way home general motors

Jon writes:


I read this column on lighting, thanks for the information! That leads me to a question…

What is up with Chevy/GM truck and SUV reverse lights!?!?!?! Why do they come on when their drivers use their lock remotes?????

It is crazy going through parking lots these days with all the SUV reverse lights coming on for no good reason. Help me understand please.

Sajeev answers:

Reversing lights, just like headlights, can be used for anything when parked. And headlights also remain lit on these vehicles, which has been a safety feature since at least the mid 1970s. Knowledge Drop time!

Peep the rheostat (Off, Max Delay) on an old automatic headlight system. There was about a minute (max) of headlight safety for a dimly lit parking space. Considering how many dimly lit streets there are at night, even in urban areas…considering how many 1970s cop shows had some seriously heavy shit go down in a dark parking garage, you better believe your 1977 Continental Mark V needs this system.

Maybe Starsky and Hutch would still be on TV if their damn low-brow Ford Torino had this Lincoln’s feature. You think long and hard about that, Son!

Bonus! A Piston Slap Nugget of Wisdom:

While this notion is a safety feature for the vehicle’s owner, you aren’t the only outsider complaining. I’m annoyed by them when looking for a spot, or looking to ensure someone won’t back into my ride.

So do this: slow down while approaching AND be on the lookout for the brake lights. Most of these vehicles are automatics, and most people crawl out of a spot while riding the brakes. So no brake lights, no driver inside the GM product.

[Image: Shutterstock user ARENA Creative]

Send your queries to sajeev@thetruthaboutcars.com. Spare no details and ask for a speedy resolution if you’re in a hurry…but be realistic, and use your make/model specific forums instead of TTAC for more timely advice.

Sajeev Mehta
Sajeev Mehta

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3 of 53 comments
  • DrGastro997 DrGastro997 on Mar 16, 2015

    Those reminder honks on GM cars are more annoying than the backup lights. I still don't understand how and why design engineers chose the honk over beeps.

  • Trichobezoar Trichobezoar on Mar 16, 2015

    Easy solution: back into your parking space. For everyone else, hey! I hear it's open season for ramming GM cars for the insurance! "Those lights? Yeah I ignored them since they're always on on those SUVs!+

    • Landcrusher Landcrusher on Mar 17, 2015

      The legal bill will be in the hundreds of millions from the class action, and everyone who has an accident and claimed confusion will get a coupon for ten dollars off of a pair of Chevette floor mats while supplies last.

  • ToolGuy I appreciate the thoughtful comments from the little people here, and I would like to remind everyone that Ford Motor Company offers a full range of vehicles which are ideal for any driving environment including New York City. The size and weight our of product portfolio has been fully and completely optimized to be friendly to the planet and friendly to pedestrians while consuming the bare minimum of resources from our precious planet (I am of course a lifelong environmentalist). Plus, our performance models will help you move forward and upward by conquering obstacles and limits such as congestion and your fellow humans more quickly at a higher rate of speed. I invite you to learn more at our website.Signed, William Clay Ford Jr.
  • George Hughes What ever happened to the American can-do attitude. I know what, it was coopted by the fossil fuel industry in their effort to protect their racket.
  • 28-Cars-Later "But Assemblyman Phil Ting, the San Franciscan Democrat who wrote the electric school bus legislation, says this is all about the health and wellbeing of Golden State residents. In addition to the normal air pollution stemming from exhaust gasses, he believes children are being exposed to additional carcinogens by just being on a diesel bus."Phil is into real estate, he doesn't know jack sh!t about science or medicine and if media were real it would politely remind him his opinions are not qualified... if it were real. Another question if media were real is why is a very experienced real estate advisor and former tax assessor writing legislation on school busses? If you read the rest of his bio after 2014, his expertise seems to be applied but he gets into more and more things he's not qualified to speak to or legislate on - this isn't to say he isn't capable of doing more but just two years ago Communism™ kept reminding me Dr. Fauxi knew more about medicine than I did and I should die or something. So Uncle Phil just gets a pass with his unqualified opinions?Ting began his career as a real estate  financial adviser at  Arthur Andersen and  CBRE. He also previously served as the executive director of the  Asian Law Caucus, as the president of the Bay Area Assessors Association, and on the board of  Equality California. [url=https://en.wikipedia.org/wiki/Phil_Ting#cite_note-auto-1][1][/url][h3][/h3]In 2005, Ting was appointed San Francisco Assessor-Recorder in 2005 by Mayor  Gavin Newsom, becoming San Francisco’s highest-ranking  Chinese-American official at the time. He was then elected to the post in November 2005, garnering 58 percent of the vote.Ting was re-elected Assessor-Recorder in 2006 and 2010During his first term in the Assembly, Ting authored a law that helped set into motion the transformation of Piers 30-32 into what would become  Chase Center the home of the  Golden State Warriorshttps://en.wikipedia.org/wiki/Phil_Ting
  • RHD This looks like a lead balloon. You could buy a fantastic classic car for a hundred grand, or a Mercedes depreciationmobile. There isn't much reason to consider this over many other excellent vehicles that cost less. It's probably fast, but nothing else about it is in the least bit outstanding, except for the balance owed on the financing.
  • Jeff A bread van worthy of praise by Tassos.