1/ while at the stop site, the car suddenly stopped and went black. Stereo turn off and screen went black. 2/ sometime I can’t unlock the car from inside. The lock works but not the unlock button. While backing or stopping there is a high noise that seems like I have a bad brake , took it to the dealership and they said the brake is good but they can’t figure out where the noise coming from. I…
2023 Chevrolet Trailblazer electrical problems
severe 12 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Complaints
12
Recalls
0
Avg fix
$850
1crash
When does it fail?
Of the 12 electrical complaints filed for the 2023 Chevrolet Trailblazer, here's the actual mileage breakdown — failures cluster heaviest at 50,000-75,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Electrical accounts for 20% of all owner complaints filed against this vehicle, across 5 categories tracked.
The failure pattern owners describe
Buyer takeaway: A 2023 Trailblazer should be trouble-free, but these complaints show serious electrical and control issues—infotainment blackouts, backup camera failures, unsafe lane-departure steering, transmission hesitation, and sudden stalls—affecting multiple systems. Many owners report dealerships cannot diagnose the problems and the manufacturer offers no fixes or recalls.
The 2023 Chevrolet Trailblazer shows a pattern of electrical and control system failures across multiple areas. Infotainment is the most common complaint: screens go black, radios scramble or produce static, and CarPlay refuses to connect. Some owners say the radio stays on after the car shuts off. Backup cameras malfunction—one showed false clearance and contributed to an accident; another won't clear the display when shifting gears.
Several owners report the lane-departure warning system aggressively steering the vehicle back into the lane at highway speeds, even after a software update. Ignition buttons fail to turn off reliably, requiring multiple presses. At least one owner's ignition switch locked up at 49,000 miles, trapping the key.
Owners also describe transmission slipping under 36,000 miles, fuel gauge reading backward, vehicle stalling completely with no power (lights, instruments, radio gone), and door locks not responding. One owner was stranded on I-90 when the brakes failed with burnt rubber smell; another reports brake noise the dealership cannot locate.
The OnStar module failure is noted as widespread across 2021–2025 GM vehicles but unrecalled. Dealerships consistently tell owners no codes appear and they cannot find the root cause. Multiple owners say they've visited dealers three or more times for the same issue with no resolution.
Same Chevrolet Trailblazer electrical reports on nearby years: 2021 · 2022
Failure modes owners describe
Infotainment System Malfunction
Radio and touchscreen display fail intermittently or completely. Owners report black screens, scrambled display, static from speakers, and loss of functionality. Radio remains on after vehicle is off. CarPlay fails to connect or recognize phone. Screen freezes or acts like it has water damage.
When: Under 3 months to 51,174 miles
Symptoms owners cite: Screen goes black or scrambles; Radio stops working or produces static; No audio output; CarPlay will not connect; Touchscreen directions/controls not responsive; Screen freezes with apparent water damage appearance; Radio stays on after vehicle is turned off; Screen remains on and plays music after vehicle is shut off
Repairs/costs cited: Radio has been replaced in at least one case but issue recurs. No fix available per manufacturer as of report date. Owners have reset radio/screen, replaced battery and fuses without resolution. One appointment scheduled at dealer with $169 diagnostic fee.
Recalls/TSBs owners mention: No current fix available per manufacturer. No assistance offered in some cases.
Backup Camera Malfunction
Backup camera image fails to display correctly or persists in all shifter positions. Calibration errors cause inaccurate distance reading. One owner was in an accident due to backup camera showing false clearance.
When: Under 36,000 miles; 17,938 miles
Symptoms owners cite: Backup camera not calibrated—shows more clearance than actually exists; Image remains displayed in all gear shifter positions; Safety warnings and messages not visible when stuck in backup mode
Repairs/costs cited: Dealer unable to determine or repair cause in multiple visits. No parts replacement noted.
Recalls/TSBs owners mention: No assistance offered.
Lane Departure Warning System Aggression
Lane departure warning aggressively pushes vehicle back into lane during highway driving, creating unsafe conditions. Software update was offered but does not fully resolve the issue.
When: Reported during highway driving at 65-70 mph
Symptoms owners cite: Vehicle pushed back into left lane when attempting right lane merge; Lane departure warning active throughout drive; Vehicle steering unstable due to system intervention
Repairs/costs cited: Software update applied; issue persists.
Recalls/TSBs owners mention: Software update available for lane departure issue; does not completely resolve problem per owner report.
Ignition Button Failure
Push-start ignition button fails to turn off vehicle reliably. Owners must push button multiple times. In one case, ignition switch locked and failed to release key entirely.
When: Early ownership; approximately 49,000 miles
Symptoms owners cite: Push-start button will not shut off on first press; Multiple button presses required to power off; Ignition switch locked; key stuck; Inability to turn off vehicle on demand
Repairs/costs cited: At 49,000 miles, ignition switch replacement determined necessary but not yet completed at time of report.
Recalls/TSBs owners mention: Manufacturer was notified and case filed; case status not described.
Transmission Slipping
Transmission slips and hesitates during acceleration. Vehicle requires steering wheel input to regain engagement. Occurs under 36,000 miles on new vehicle.
When: Under 36,000 miles
Symptoms owners cite: Transmission slips to point where owner must go all the way to steering wheel to catch engagement again; Cruise control 'bogs down' as if vehicle wants to cut off
Repairs/costs cited: No codes present per code reader check at dealership. No repair performed.
Unexpected Vehicle Shutdown or Stall
Vehicle stalls or shuts down unexpectedly while driving, with complete loss of power including instruments, radio, and steering control (other than manual steering). Instrument cluster flickers before failure in at least one case.
When: 51,174 miles; mileage unknown in I-90 incident
Symptoms owners cite: Vehicle stalls or stops by itself while driving; Complete power loss—no instruments, no radio, no backup camera; Instrument cluster flickers before stall; Radio turns off independently
Repairs/costs cited: Vehicle in one case was able to move again after several minutes; no root cause diagnosed. No repairs documented.
Recalls/TSBs owners mention: Manufacturer made aware but provided no assistance. Owner referenced unknown recall with similar symptom; VIN not under recall per dealer check.
OnStar Module Failure
OnStar module failure disables OnStar, Bluetooth microphone, and remote start features. Owners report this is common on 2021-2025 Chevrolet/GM vehicles but no recall issued despite manufacturer awareness.
When: Unknown mileage
Symptoms owners cite: OnStar features stop working; Bluetooth microphone fails; Remote start inoperative
Repairs/costs cited: Module replacement implied but no repair details given.
Recalls/TSBs owners mention: Manufacturer aware of faulty modules; no recall issued.
Brake System Noise and Possible Failure
Owners report squeaky or screeching noises from brakes; one owner also reports vehicle stopping suddenly on highway with burnt rubber smell. Another reports high noise during backing/stopping. Dealership checks show brake pads are good but cannot identify source of noise.
When: 3 months old (brand new vehicle); I-90 incident at unknown mileage
Symptoms owners cite: Squeaky or screeching noises when braking; High noise during backing or stopping; Sudden vehicle stop on highway with burnt rubber smell; Vehicle stalled, no control except manual steering
Repairs/costs cited: Brake pads checked and found good. Noise source not identified by dealership after multiple visits. Appointment scheduled for resolution.
Door Lock/Unlock Malfunction
Door lock/unlock button fails intermittently. Owners cannot unlock vehicle from inside despite lock button working.
When: Unknown mileage
Symptoms owners cite: Cannot unlock car from inside; Lock button works but unlock button does not
Repairs/costs cited: No repair details provided.
Fuel Gauge and Dashboard Display Error
Fuel gauge and remaining fuel miles display increase as vehicle is driven and fuel is consumed, opposite of expected behavior. Indicates electrical or software problem with dashboard system.
When: 3 months old
Symptoms owners cite: Remaining fuel miles increase as fuel is consumed; Fuel gauge display reads incorrectly
Repairs/costs cited: No repair attempted.
Parking and Transmission Control Issues
Vehicle lunges when parking in garage. Vehicle continues to roll backward after being placed in park. Issues suggest transmission or transmission control problem.
When: Unknown mileage
Symptoms owners cite: Vehicle lurches or lunges when parking; Vehicle continues rolling backward after park engaged
Repairs/costs cited: No repair documented.
Synthesized from 12 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 3 most recent
The contact owns a 2023 Chevrolet Trailblazer. The contact stated that while driving at an undisclosed speed, the instrument cluster flickered, and the vehicle stalled. In addition, the radio turned off independently. The contact turned the vehicle off. The contact stated that while restarting the vehicle, the vehicle started. The vehicle was not diagnosed or repaired by an independent mechanic…
The vehicle almost caused me to collide with another vehicle when I was trying to get into right lane it kept pushing back into left fast lane, this happened throughout the drive to and from Northern California. car got horrible gas mileage, wasn’t operating correctly at times, my radio screen scrambling, going blank, stop working, static cracking sounds coming out. Every time I started the car…
Had electrical trouble with your 2023 Chevrolet Trailblazer?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2023 Chevrolet Trailblazer?
It's a meaningful issue. 12 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Based on the 12 complaints filed, electrical issues most often appear around 39,371 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2023/Chevrolet/Trailblazer.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.