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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  • Wjtinfwb Nice car and looks well cared for. The accessories are mostly for vanity, their value is in the eye of the buyer. I see zero value in them but I like bone stock if buying used. The problem this seller has is his spec is not at all unique; not a manual, no Shaker hood, attractive, but conservative color. Today, AutoTrader has 130 used 2015-2018 Challenger Hemi's with automatics available. The average price is abut 27,200 and mileage is slightly lower than this example at about 40k miles. Almost all are at dealers where a decent negotiator should be able to knock $1500-2500 off the ask. This is a 25k car, the buyer may not believe it but stats would say otherwise.
  • FreedMike I don't need to know anything about this model per se, but I'd be very interested in knowing if Mazda is going to be using the tech from the PHEV CX-90/70 model - which is darned nice, by the way - on other Mazdas.
  • Turbo Is Black Magic Honestly at this point Elon is more of a liability than an asset. How much does the board have to pay to just get rid of him?
  • FreedMike The article touches on this fact, but the number of public EV chargers grew by over 18,000 between 2021 and 2023. https://afdc.energy.gov/fuels/electricity-infrastructure-trendsSo clearly the expansion is happening without the use of the funds in question. Not necessarily a bad thing, if you're into not using taxpayer money. Still, I'd be interested in knowing why the public money isn't being used. Are the regs overly complex or restrictive, or something like that? But in any case, EV charging IS expanding at a pretty solid rate. And as far as "...we’ve seen plenty of Republican-backed legislation targeting EV-related spending over the last couple of years" is concerned...well, yeah, there's a reason why Republicans don't like EV charging. The petroleum industry is one of the GOP's prime donors, and every charger built or EV sold represents a direct ding to their bottom line. Republicans, of course, like to put this in terms of "EVs are a woke mind virus," or some such nonsense, but the fact is that the people paying their bills don't want competition.
  • 28-Cars-Later When its discontinued.
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