The New Chevy Blazer EV Has Stumbled Twice in Recent Tests - Hard

Chris Teague
by Chris Teague

General Motors’ fortunes are tied heavily to its new Ultium EV technology. It underpins several existing and upcoming models and is the basis of the automaker’s EV efforts, costing billions of dollars and years of development. A few Ultium-based models have already gone on sale without too many issues, including the GMC Hummer EV and Cadillac Lyriq, but the most recent release hasn’t gone so smoothly. The Chevrolet Blazer EV has recently failed in two high-profile tests by automotive publications, raising questions about its electrical system and software.


Kevin Williams at InsideEVs experienced several issues on his road trip from Ohio to North Carolina, leaving him stranded at a rural charging station. Now, Edmunds is reporting a similar experience, with its almost-new long-term Blazer EV test vehicle recording dozens of errors and weeks in the dealer repair department.


While Williams’ road trip ended with a stranded journalist and a vehicle that couldn’t complete its intended journey, Edmunds’ at least ended in its home area in Southern California. The publication saw eight warning lights during its trip between Los Angeles and San Diego.


Unlike Williams, Edmunds got a 12-volt system error, but both experienced issues charging. Both experiences also unraveled over a short period, but Edmunds recorded 23 issues requiring fixes. The publication sent its SUV to the dealer, where it’s been for more than two weeks so far, requiring support from a GM technician and surrounding stores.


The list of faults is long and won’t be all that interesting for many readers, but there are a few issues to address. The body and drive motor control modules malfunctioned, leaving “lost communication” messages with some windows, while the head-up display experienced a “general electrical malfunction.”


To be fair, this is not only a brand-new vehicle but a brand-new vehicle in a somewhat untested format for GM. People often advise against buying first-generation mobile phones and electronic devices because of the complexity involved with developing an all-new product, so, hopefully, General Motors and Chevy can address these issues with an over-the-air software update to smooth the landing a bit.  


[Image: Chevrolet]


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Chris Teague
Chris Teague

Chris grew up in, under, and around cars, but took the long way around to becoming an automotive writer. After a career in technology consulting and a trip through business school, Chris began writing about the automotive industry as a way to reconnect with his passion and get behind the wheel of a new car every week. He focuses on taking complex industry stories and making them digestible by any reader. Just don’t expect him to stay away from high-mileage Porsches.

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  • Scrotie about 4 years ago there was a 1992 oldsmobile toronado which was a travtech-avis pilot car that had the prototype nav system and had a big antenna on the back. it sold quick and id never seen another ever again. i think they wanted like 13500 for it which was steep for an early 90s gm car.
  • SunnyGL I helped my friend buy one of these when they came in 2013 (I think). We tried a BMW 535xi, an Audi A6 and then this. He was very swayed by the GS350 and it helped a lot that Lexus knocked about $8k off the MSRP. I guess they wanted to get some out there. He has about 90k on it now and it's been very reliable, but some chump rear-ended it hard when it was only a few years old.From memory, liked the way the Bimmer drove and couldn't fathom why everyone thought Audi interiors were so great at that time - the tester we had was a sea of black.The GS350's mpg is impressive, much better than the '05 G35x I had which could only get about 24mpg highway.
  • Theflyersfan Keep the car. It's reliable, hasn't nickeled and dimed you to death, and it looks like you're a homeowner so something with a back seat and a trunk is really helpful! As I've discovered becoming a homeowner with a car with no back seat and a trunk the size of a large cooler, even simple Target or Ikea runs get complicated if you don't ride up with a friend with a larger car. And I wonder if the old VW has now been left in Price Hill with the keys in the ignition and a "Please take me" sign taped to the windshield? The problems it had weren't going to improve with time.
  • SPPPP I don't think it's a sign of pressure from external competition, but rather a healthy sign of letting practicality trump triumphalism on the assembly floor. Does a 1-piece casting make sense? Imagine the huge investment (no pun intended) in the tooling for that structure. Now imagine that a change in regulation or market conditions requires a change to the structure. You're going to build all the tooling all over again? Why not use "gigacasting" selectively, to build right-sized modules that can be assembled simply and repeatably? Changing 1/3 of the tooling is much less costly. Additionally, it makes the vehicles repairable, instead of being subject to total loss in a minor accident.
  • Formula m Oh my first Ford learning experience was with a sales manager who is a former stripclub manager with a Satan’s choice tattoo on his forearm… was very eye opening. You can imagine how he has contributed to Ottawa over his long tenure with Ford. Hopefully A.I. gives a different experience
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