This has infiltrated from all the Auto and Truck distributors into the realm of Motorcycles and even small tech equipment as Mowers, as well FARM equipment.  A True BANE of the industry as to selling these Fine Examples of Over Technification.

Not so much an issue when it's cheaper Chinese crap where you can get a head unit for £15 or a motor for £30 but the "better quality" drive units I was given use their own protocol & the peripherals for these come with their own "brand tax" so they're pretty much useless as they sit.

Makes me glad I'm still with my old mechanical diesels for transport, specially since the alternator picked this last week to lock up & smoke the belt. Just park on a hill for starting & carry a spare battery for when it gets dark!

The older tech may not be as reliable (can't rely on it to work as intended as much as something 30 years newer) but infinitely more dependable (can always depend on it getting me home, even with a completely dead battery).

Not to mention I can get a used alternator for £40, drop it straight in & most likely replace the bearings in the failed one to have as a spare, not a thrown code or scan tool in sight...

CANbus is a friggin NIGHTMARE... Overly 'complicated' both in hardware and software.

Sadly it's in every car, truck, heavy equipment, small boats, yeesh.....

The best (worst ? ) example of how KRAPPY it is...

Wife's 2019 Nissan last year with a real key... she comes in drops keys on kitchen counter and says car's still running...... WTH ?? I go out, get in, dash lit up for Xmas..., DRIVE it up to garage, keys STILL ON THE COUNTER... open hood, ask self WHERE is the battery? open glove box, scan the 450 page owner's manual to see WHERE'S THE BATTERY ?, nada, oh yeah engine STILL running...4-5 minutes later , engine shuts off.

Grab keys, it starts fine, go park it, back to 'normal'.

Car goes to dealership, towed THREE times over 4-5 months. Since I cut code for microcontrollers, I surf the web, even find NISSAN paperwork on the possible problem,SO I email dealer to show WHAT is WRONG, and get told I'm wrong.

What I FOUND out was the dealer had wrongly installed the factory remote starter computer.They bitchered the wiring and ,gee, everyone KNOWS CANbus HAS to have perfect wiring and connections. idiots..... didn't even look at THEIR tech bulletins... OK..time passes.. Wife decides to drive to BC and back ( 10,000 KM +- 6,000 miles ). Car won't start (acting funny ,again ). She gets dinged $80 for an inspection and is told battery is nogood. $350 for a new one or....sitting down ? ... they can recharge her BAD battery...... She comes home and her son replaces the battery for $120 AND disconnects the remote start computer... goes on roadtrip fine. Meanwhile neighbour gets 30 meat birds and needs a battery for the fencer. Yup, I loan out her 'bad' battery. ZERO problems...heck it's just 5 years old.

ALL of this BS, cost $$$$ due to lousy, ill conceived, poorly executed use of CANbus,which itself is a friggin NIGHTMARE.....

ARRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRGH......

Sad thing is my little Kubota has a CANbus port on it.

OK, vent over

BTW... the PROBLEM was the 'remote start' computer didn't communicate with the other 6 computers, so the ECU goes into a 'limp mode' type loop until 15 minutes later when the remote starter finally times out, even though it'd never been told to start the car.

The 'auto environment' is a challenging one ! Can be super hot, bitter cold on a daily if not hourly basis. Requires EVERY component to be high quality  and MADE for 'auto' use. Vibration is also a huge problem, along with EMP aka frying the alternator.

There's a LOT of Kubota tractors that their ECU gets destroyed when changing the battery. 4-5 THOUSAND dollars the owner has to pay even though it's a DESIGN DEFECT from the FACTORY !

The problem with going back to the 'KISS' method, is the genie's out of the bottle. 'they' found out 'computers' are CHEAP to make and can do 'everything' we need, like GPS, active braking,29 cameras, .001*F heated seats, etc.

Heck an entire billion buck INDUSTRY has been created on the 'simple, need to have' start/stop push button. Dumb down to physical keys and car thefts grind to a halt so far less cars resold, less taxes collected, cheaper insurance rates, fewer cops, less media( no news...)

Nailed it down 100%.  The peak of auto security IMO was Ford's PATS transponder keys of the mid 90s. Not got the key? You ain't going nowhere without swapping the entire ECU & lock set.  And as to the "safety" aspect of modern cars, honestly believe we'd be safer if cars had a spike instead of an airbag & belts. Folk would hesitate to scroll facebook if they knew hitting someone would pierce their face for them!

Just add more of the self driving stuff.  Have it set to give a shock to the driver playing on phone when the traffic lite changes.

But I don't have a cell phone..... I did however had 2 razor blades under the dash of my '67 Mustang convertible that I never locked. It was never stolen...lotta blood on the floor mat one morning though.

All the new rides are easy to prevent being driven away for $25 + install cost(1/2hr).

https://www.usatoday.com/story/money/cars/recalls/2024/12/12/paccar-recall-peterbilt-kenworth-trucks/76943110007/" rel="nofollow - PACCAR recall includes over 220,000 Peterbilt and Kenworth trucks