2024 Chevrolet Blazer EV Problems

What owners report

Complaints on this model year center on two themes: sudden automatic emergency braking that owners say fires with no obstacle present, and the parking brake recall covering unintended rear-brake engagement. A smaller but consistent group of complaints describes electrical and screen failures, including blank instrument clusters and high-voltage warnings, with several owners reporting that no lasting repair was offered.

1. 1
   Forward collision avoidance

   Automatic emergency braking activates with no obstacle

   • 25 complaints (32%)
   • median 20,800 mi at 3.0 yrs old (1 states mileage, few)
   • 7 mention a crash, fire or injury
   • filed 2024–2026

   Owners describe the vehicle braking hard on its own in situations where they see nothing in the path — backing out of a driveway, pulling through a parking lot, or driving in stop-and-go traffic. Several say the stop was forceful enough to throw them against the seatbelt or leave them with neck or back pain, and a few report that a following vehicle struck them. According to the complaints, dealers often said the sensors were too sensitive or could not reproduce the event, and some owners turned the system off. Reported across a wide mileage range, from cars with a few thousand miles to about 21,000 miles, often at low speeds in driveways, parking lots and slow traffic.

   6 related service bulletins

   What to check: Ask whether the forward camera and driver-assistance software updates have been applied, and test the system at low speed in a parking lot during a test drive. Confirm which collision-avoidance settings are enabled before driving away.

   2 excerpts from owner complaints in NHTSA records

   “On April 7, 2025 while backing out of the driveway, my son's car abruptly stopped. The manhole cover at the end of our driveway triggered the emergency braking system. My head was slammed against the headrest and caused a great deal of pain in my head. On April 15, 2025, I went to Kaiser and was told that I have a concussion.”

   NHTSA complaint #11655089, filed 2025-04

   “Automatic emergency braking engages violently on occasions when there is no obstruction present. It has left me at times with my vehicle stationary half way into a high speed traffic lane with the parking brake engaged. The time it takes to disengage the brakes leaves the vehicle in a dangerous position in the roadway.”

   NHTSA complaint #11623846, filed 2024-11
2. 2
   Electrical system

   Blank screens and electrical warnings while driving

   • 42 complaints (54%)
   • median 11,000 mi at 2.0 yrs old (3 state mileage, few)
   • 5 mention a crash, fire or injury
   • filed 2024–2026

   Owners report the instrument cluster and infotainment screen going black while driving, leaving no speedometer, backup camera or warning lights until the vehicle sits powered off for a while. Others describe bursts of warnings — high voltage system, reduced acceleration, power steering, brake assist — sometimes along with flickering displays and the climate fan running at full. Complaints mention repeated dealer visits, power module or sensor replacements, and parts on back order. Mostly reported on low-mileage vehicles, including one at roughly 700 miles and another at about 10,400 miles, often shortly after purchase.

   Recall 24V3200005 related service bulletins

   What to check: Check for stored diagnostic codes and ask whether any power module, 12V battery or software updates have been done. Note whether the screens stay on through a long test drive with accessories and climate running.

   2 excerpts from owner complaints in NHTSA records

   “The Blazer EV 2024 completely SHUT OFF while I was driving at an incline while motorist were accelerating behind me I was about .05 miles from the freeway where I was headed delivering the vehicle due to warnings firing off the day before the incident there was also a significant drop in Battery from 80% to 73% within a 5 mile drive. …”

   NHTSA complaint #11628465, filed 2024-12

   “This vehicle with a total of 700 miles on the odometer, gave several warning notifications this morning on my way to work. Service high voltage system, reduced acceleration notification. I was on the interstate and suddenly became unable to accelerate to keep up with traffic, creating a dangerous situation for my safety. …”

   NHTSA complaint #11636157, filed 2025-01
3. 3
   Brakes

   Rear parking brake engages on its own

   • 15 complaints (19%)
   • median 28,989 mi at 1.9 yrs old (1 states mileage, few)
   • 2 mention a crash, fire or injury
   • filed 2024–2026

   Complaints describe the vehicle slowing or stopping abruptly with a service parking brake message, sometimes while reversing at very low speed and sometimes at road speed. Several owners link their experience to the parking brake recall, and some report the part was not yet available or that the car was returned with the recall marked complete after only an inspection. Others describe brake assist or ABS warnings and a pedal that went to the floor. Reported at low speeds such as backing at around 5 mph and at around 20 to 30 mph, with one complaint at roughly 29,000 miles.

   Recall 25V433000Recall 26V031000

   What to check: Ask for documentation that recall 25V433 (and the follow-up 26V031, if applicable) was completed with the harness reroute or replacement, not just a visual check. Have the rear brake harness inspected for chafing or corrosion before purchase.

   2 excerpts from owner complaints in NHTSA records

   “After getting the recall repaired (which I was never informed of and I had the parking brake engage as I was travelling 30 mph causing me to skid down the road) I got the vehicle back and the very next day it was the same issue and the abs and traction control light came on and it began making loud clicking noises every time I would engage the brake.”

   NHTSA complaint #11672830, filed 2025-07

   “The vehicle has engaged the brake on multiple occasions unexpectedly. This is related to the recent recall that GM announced and is unable to repair. I have made multiple attempts to reach GM through written mail, phone, X and the BBB and have not received a satisfactory resolution as the safety issue persists.”

   NHTSA complaint #11688118, filed 2025-09
4. 4
   Visibility (wipers, defrost, mirrors)

   Windshield wipers stop working intermittently

   • 10 complaints (13%)
   • typically at 1.6 yrs old
   • 1 mention a crash, fire or injury
   • filed 2025

   Owners describe the wipers failing to respond to the stalk at any speed setting, including during heavy rain, and then working again on a later drive. Some report no warning light or message when it happens, and one owner notes the washer spray also did not work at the time. Complaints say the problem is intermittent, which makes it hard for a dealer to confirm. Reported at various mileages on vehicles with no clear pattern, typically occurring while driving in rain.

   What to check: Test every wiper speed and the washer on a test drive, and ask the seller whether the wiper motor or stalk has been replaced. Also check dash reflection on the windshield on a sunny day, which some owners mention as a visibility concern.

   2 excerpts from owner complaints in NHTSA records

   “There is a glare from the dashboard of the vehicle that shines onto the windshield and causes visibility to be nearly impossible. I am unable to see certain things on the roadway as a result. This happens every single time the sun happens to be out and is an extreme safety issue. This vehicle is not safe to operate or be on the roadway in any way shape or form”

   NHTSA complaint #11682569, filed 2025-08

   “While driving the vehicle the reflection from the dashboard onto the windshield on a sunny day causes vision to be impaired to where sometimes you cannot see pedestrians or animals at certain angles. This happens constantly while day driving and increases in impaired vision depending on the direction of travel relative to the sun.”

   NHTSA complaint #11653363, filed 2025-04
5. 5
   Exterior lighting

   Turn signal module and stray left blinks

   • 7 complaints (9%)
   • typically at 1.2 yrs old
   • filed 2024–2025

   Complaints describe a rear turn signal that fails intermittently with a check lamp message, and in some cases the whole module needed replacement with the part back ordered for weeks. Others report that after a right turn the stalk springs back far enough to trigger three left flashes, confusing drivers behind. One owner notes a software change reduced but did not eliminate the behavior. Reported from the first months of ownership at low mileage, both on the road and in parking situations.

   What to check: Cycle the turn signals both ways and watch the rear lamps for dropouts or stray flashes. Ask whether any lamp module or software update has been applied.

   2 excerpts from owner complaints in NHTSA records

   “The right side tail signal light module needs to be replaced. I was having intermittent issues with the right turn signal, I took the car to the dealership and they told me that the module needed to be replaced. The car has been in the dealership since March 19th, more than a month ago waiting for the part. I contacted Chevrolet and they keep telling me that no ETA for part is available, and they do not provide any more details on what is causing this delay.”

   NHTSA complaint #11658038, filed 2025-04

   “There is an interment issue with my passenger, rear turn signal. Once activated, it will flash three times, and then display a Check Right Rear Turn Lamp message. My front and mirror light still flash, but flash rapidly to indicate an issue with the rear signal. The rear signal does not flash, but periodically will flash quickly for 2-3 flashes and go out again. The dealership stated it ...could be a list of things... and are currently trying to find a resolution. …”

   NHTSA complaint #11625282, filed 2024-11

Buying note. This is a recently introduced model year, so the record is short and skewed toward low-mileage cars. Before buying, confirm in writing that the parking brake recall work was actually performed, and spend time on a test drive checking the automatic braking behavior, the screens, and the wipers.

Summary written with AI from a sample of 60 NHTSA complaints for this model year (picked at random, with complaints that state a mileage and recent ones taken first), then checked automatically against the source records. Where a problem shows a complaint count, every complaint for this model year was matched with fixed keyword rules (written with AI and tested against the sample), and the mileage, age and repair figures are calculated from those complaints; owners' figures are as stated, not verified. Other counts refer to the sample. The excerpts come from NHTSA's public complaint records and are unverified; capitalisation is normalised, NHTSA staff notes are removed, and shortened text ends with “…”. Something wrong? Request a correction.