2024 Chevrolet Blazer EV Lemon Law Case Study: Cash and Keep Settlement in Missouri
A 2024 Chevrolet Blazer EV Whose High-Voltage System, Charging System, and Coolant Hardware Kept Failing After 53 Days at the Dealer
Our client purchased a brand-new 2024 Chevrolet Blazer EV in Missouri on March 16, 2024 with 20 miles on the odometer. Within the first two days of ownership the truck was already back at the dealer for a broken back-glass defect. By the second year of ownership the Blazer EV had developed a cascading series of high-voltage, charging-system, and electrical defects that General Motors could not permanently resolve, recurring Service High Voltage System warnings, repeated Service Charging System messages, a coolant control valve that failed and was replaced under warranty, a temperature sensor that failed and was replaced, an X140R connector terminal that backed out and produced a poor connection, a radio module that failed and was replaced, a radio display assembly that subsequently failed and was also replaced, an inoperative cabin heater linked to a coolant-temperature performance code, a charging door that wouldn’t open without manual intervention, and four GM recall actions (lighting control module, chassis harness plug reinstallation, brake harness inspection, BECM) layered across the visits.
That escalating defect history played out across seven documented warranty repair events spanning the first 21 months of ownership and totaling 53 cumulative days out of service, nearly two months of dealer time on a brand-new EV. The defect that finally broke the case open was the high-voltage / charging system: technicians replaced the coolant control valve at Visit 4, then re-routed coolant hoses at Visit 5 because they had been connected to the wrong port (DTC P293C), then replaced a temperature sensor at Visit 6, then at Visit 7 found terminal 48 on the X140R connector backed out and producing a poor connection, replaced the radio display assembly, programmed the BECM under recall, and logged a coolant-temperature-sensor-2 performance code while the cabin heat was inoperative. With General Motors unable to keep the high-voltage and charging systems on a brand-new Blazer EV in service, a federal Magnuson-Moss Warranty Act claim against General Motors LLC was the cleanest path to compensation.
What Went Wrong
- Recurring Service High Voltage System warning: The Service High Voltage System message returned to the dash at Visit 4 with a coolant control valve failure and again at Visit 5 with reduced engine power and DTC P293C, a continuing high-voltage drivetrain nonconformity
- Recurring Service Charging System message: The Service Charging System warning was first triaged at Visit 6 with a temperature sensor replacement and returned at Visit 7 due to a backed-out terminal at connector X140R that needed connector repair
- Service High Voltage Battery message + inoperative cabin heat: At Visit 7 the high-voltage battery warning was logged alongside an inoperative heater, technicians found a code for coolant temperature sensor 2 performance
- Coolant control valve failure: The coolant control valve failed and was replaced under warranty at Visit 4, an EV thermal-management hardware failure
- Coolant hose connected to the wrong port: At Visit 5 technicians found a coolant hose connected to the wrong port (a noted contributor to DTC P293C) and re-routed the hoses to the correct ports
- Temperature sensor failure: The temperature sensor failed and was replaced at Visit 6
- X140R connector terminal backed out (poor connection): Terminal 48 on the X140R connector had backed out and was producing a poor connection, technicians repaired the connector at Visit 7
- Radio module failure: The radio sound would turn up to maximum and could not be turned down, the radio module had failed and was replaced at Visit 3
- Radio display assembly failure: The radio screen subsequently went blank, the radio display assembly had failed and was replaced at Visit 7
- Charging door wouldn’t open without manual intervention: The charging door assembly was found to be malfunctioning at Visit 2 and was placed on backorder
- Back glass broken on day two of ownership: The back glass was verified broken at Visit 1, replaced under warranty
- Four GM recall actions performed across the visits: Lighting control module reprogrammed (Visit 4), chassis harness plugs reinstalled (Visit 4), brake harness inspected (Visit 4), and BECM reprogrammed under recall (Visit 7), manufacturer-issued field actions on the Blazer EV platform
- 53 cumulative days out of service: Across seven documented warranty repair events on a brand-new EV SUV, the same broad high-voltage / charging / radio system never permanently conformed to the express warranty
Seven Visits, 53 Days at the Dealer, One High-Voltage System That Refused to Stay Repaired
Visit 1: March 18–26, 2024
- Two days after delivery, the customer reported the back glass was broken
- Technicians verified the issue and replaced the back glass under warranty
Visit 2: December 17, 2024
- The charging door would not open unless manually opened, a critical functional defect on an electric vehicle
- Technicians found the charging door assembly was not working properly and placed the door assembly on backorder
Visit 3: February 6, 2025
- The radio sound would turn up all the way and could not be turned down
- Technicians found the radio module had failed and replaced the radio under warranty
Visit 4: August 7–26, 2025
- The Service High Voltage System light was on the dash
- Technicians found the coolant control valve had failed and replaced the coolant control valve under warranty
- Three GM-issued recalls were also performed at this visit: lighting control module reprogrammed, chassis harness plugs reinstalled, and brake harness inspected
Visit 5: September 2–4, 2025
- A Service High Voltage System warning was again displayed on the dash, this time accompanied by reduced engine power
- Technicians found stored DTC P293C and identified that a coolant hose was connected to the wrong port (a noted contributor to the issues reported)
- Technicians re-routed the hoses to the correct ports
Visit 6: September 10–16, 2025
- A Service Charging System message was displayed on the dash
- Technicians found that the temperature sensor had failed and replaced the temperature sensor under warranty
Visit 7: December 1–12, 2025
- The Service Charging System message returned to the dash
- Technicians found terminal 48 on the X140R connector had backed out and was producing a poor connection, the connector was repaired
- A Service High Voltage Battery message was also reported and the cabin heat was inoperative, technicians found a code for coolant temperature sensor 2 performance
- The radio screen was reported blank, the radio display assembly had failed and was replaced under warranty
- A GM-issued recall was also performed at this visit to reprogram the BECM (Battery Energy Control Module)
Why This Chevrolet Blazer EV Was Eligible for a Cash Settlement Under Federal Magnuson-Moss
Missouri’s New Motor Vehicle Warranty Act, codified at Missouri Revised Statutes §§ 407.560 through 407.579, protects new-vehicle buyers and lessees in Missouri. A vehicle qualifies as a lemon if, within the express warranty term or one year from delivery (whichever ends first), the manufacturer or its authorized dealer cannot conform the vehicle to its express warranty after a reasonable number of attempts, defined as four or more repair attempts for the same nonconformity, or a cumulative total of thirty or more business days out of service. When the qualifying repair history extends past Missouri’s strict one-year statutory window, the federal Magnuson-Moss Warranty Act provides the controlling remedy and the same documented repeat repair attempts continue to support a breach-of-warranty cash settlement against General Motors.
This case presented several compelling legal factors:
- 53 cumulative days out of service: 53 documented cumulative days out of service across seven warranty visits on a brand-new EV SUV.
- Multiple unresolved repair attempts on the same nonconformity (high-voltage / charging system): The Service High Voltage System warning surfaced at Visit 4 (coolant control valve replaced) and recurred at Visit 5 (DTC P293C, coolant hose re-routing). The Service Charging System message surfaced at Visit 6 (temperature sensor replaced) and returned at Visit 7 (X140R connector terminal repaired). The radio failed at Visit 3 and the radio display assembly failed again at Visit 7. The same broad high-voltage / charging / infotainment systems never fully conformed to the express warranty.
- Four manufacturer-issued recall actions performed under warranty: Four GM recall actions, lighting control module (Visit 4), chassis harness plug reinstallation (Visit 4), brake harness inspection (Visit 4), and BECM reprogramming (Visit 7), were performed on this single vehicle.
- Substantial impairment of use, value, or safety: A modern Chevrolet Blazer EV depends on the high-voltage battery system, the BECM, the coolant control valve, the temperature sensors, the X140 connector chain, and the radio display module for routine driving and charging. A vehicle that throws Service High Voltage System and Service Charging System warnings, loses cabin heat, blanks the radio display, and refuses to open the charging door without manual intervention substantially impairs the vehicle’s use and market value, and Missouri law requires substantial impairment of only one of use, market value, or safety.
- Magnuson-Moss fee-shifting: Under 15 U.S.C. § 2310(d)(2), a court may award a consumer who prevails on a written-warranty claim reasonable attorney fees. The $8,000 total combines the payment to our client and the attorney fees.
How Easy Lemon Secured the Cash Settlement
Free Case Evaluation
We reviewed the complete repair history and confirmed seven documented warranty repair events totaling 53 cumulative days out of service on a brand-new 2024 Chevrolet Blazer EV, enough to support a federal Magnuson-Moss Warranty Act breach-of-warranty claim against General Motors LLC even though the qualifying repair history extended past Missouri’s one-year statutory window under §§ 407.560 to 407.579.
Documentation & Case Building
Our team compiled every Chevrolet repair order, every recall reprogramming (lighting control module, chassis harness, BECM), every replaced part (coolant control valve, temperature sensor, radio module, radio display assembly), every connector repair (terminal 48 on X140R), every stored DTC (P293C), and every dealership write-up into an airtight timeline showing General Motors’ inability to permanently repair the same broad high-voltage / charging / infotainment systems on a brand-new EV SUV.
Demand to General Motors LLC
We filed a formal demand against General Motors LLC citing the federal Magnuson-Moss Warranty Act, documenting seven repair attempts, 53 cumulative days out of service, four manufacturer-issued recall actions, recurring Service High Voltage System and Service Charging System warnings that returned after replacement parts were installed, an inoperative cabin heater linked to a coolant-temperature-sensor-2 performance code, and a radio display module failure that General Motors could not permanently resolve.
$8,000 Cash and Keep Settlement
Easy Lemon successfully negotiated an $8,000 Cash and Keep settlement, General Motors paid our client a negotiated cash amount and the client kept the Blazer EV. Cash and Keep was the right outcome here because the Missouri statutory buyback window had passed before the high-voltage and charging defects fully crystallized. The $8,000 total combines the payment to our client and the attorney fees.
$8,000 Cash and Keep Settlement Recovered
Key Case Facts
- Vehicle: 2024 Chevrolet Blazer EV (Ultium-platform electric SUV)
- Purchased in: Missouri (March 16, 2024)
- Status at purchase: Brand new (purchased new, 20 miles at delivery)
- Mileage at first repair: 342
- Current mileage: 33,731
- Primary defects: Recurring Service High Voltage System warning (coolant control valve replaced; DTC P293C with coolant hose re-routing); recurring Service Charging System message (temperature sensor replaced; X140R connector terminal 48 repaired); Service High Voltage Battery warning with inoperative cabin heat (coolant temperature sensor 2 performance code stored); radio module failure (replaced); radio display assembly failure (replaced); charging door assembly inoperative without manual intervention; back glass broken on day two of ownership; four GM recall actions (lighting control module, chassis harness plug reinstallation, brake harness inspection, BECM)
- Repair attempts: 7 documented warranty repair events at the authorized Chevrolet dealership
- Days out of service: 53 cumulative days
- Manufacturer: General Motors LLC
- Settlement type: Cash and Keep, cash compensation under the federal Magnuson-Moss Warranty Act, client retained the vehicle
What Our Clients Are Saying
Attorney on Record
Steven Nassi, Esq.
Managing Partner, Easy Lemon by RockPoint Law P.C.
Licensed attorney whose practice is limited to lemon law. Steven leads the Easy Lemon legal team and has overseen thousands of successful lemon law claims against major manufacturers including General Motors, Ford, Stellantis, Tesla, Rivian, Audi, Volkswagen Group of America, Porsche, BMW, Mercedes-Benz, Kia, and more.
Having High-Voltage System, Charging, or BECM Problems With Your Chevy Blazer EV?
Recurring Service High Voltage System or Service Charging System warnings, an inoperative cabin heater linked to a coolant-temperature-sensor code, a radio display module failure, a stuck charging door, or any defect on a 2024 or 2025 Chevrolet Blazer EV in Missouri that has already been to the dealer multiple times is unacceptable, and you may already qualify for compensation under federal Magnuson-Moss and Mo. Rev. Stat. § 407.560 et seq. Free case evaluation, 30 seconds.
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Your Chevrolet May Have a Lemon Law Claim Too
If your Chevrolet keeps going back to the shop for the same problem, you may qualify under your state's lemon law, the manufacturer pays our fees, not you. We handle Chevrolet cases like this one regularly.
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