The 2024 Silverado EV RST is GM's Ultium-platform full-size electric truck with dual motors and a massive 200+ kWh battery pack. Being first-year production, we're seeing early teething issues with cooling systems, software glitches affecting the transmission controller, and high-voltage component failures that require specialized diagnostic equipment.
Inverter Coolant System Leaks and Overheating
Occasional · high severity
Typical onset: 10,000-40,000 mi
Symptoms: Reduced power mode or limp mode during heavy acceleration, Coolant puddles under vehicle near front subframe, Dashboard warnings for drive unit temperature, Loss of regenerative braking capability
Fix: Inverter coolant circuit uses dedicated loops separate from battery cooling. Common leak points are quick-disconnect fittings at the inverter housing and the coolant reservoir cap seal. Diagnosis requires GM MDI 2 scanner to read inverter temps. If inverter itself is damaged from overheating, R&R is 6-8 hours with specialized high-voltage lockout procedures. Most cases caught early just need hose/fitting replacement at 2-3 hours labor.
Estimated cost: $800-6,500
Transmission Control Module Software Faults
Common · medium severity
Symptoms: Harsh shifts or clunking between Drive and Reverse, Transmission fault codes with no mechanical issue found, Intermittent failure to shift out of Park, Delayed engagement after cold starts
Fix: The single-speed 'transmission' is essentially a reduction gear with electronic shift control, but GM's TCM software has had multiple TSB updates for shift logic errors. This isn't a mechanical transmission failure—it's programming. Reflash takes 1-1.5 hours with TIS2Web subscription. Occasionally requires shift solenoid pack replacement if solenoids stick from contaminated ATF (yes, even single-speed EVs have ATF for lubrication and cooling). Solenoid pack is 3-4 hours labor.
Estimated cost: $150-1,200
High Voltage Battery Module Degradation and Cell Imbalance
Rare · high severity
Typical onset: 20,000-60,000 mi
Symptoms: Significant range loss beyond normal degradation (more than 15% in first two years), Battery thermal management system running constantly, Multiple module fault codes stored, Uneven charging behavior or refusal to DC fast charge
Fix: Ultium pack uses 24 modules with individual monitoring. When one module fails or develops severe imbalance, GM's solution is module replacement, not full pack swap in most cases. Requires complete high-voltage isolation, pack disassembly from underneath (truck on lift, pack is structural), and module swap at 12-16 hours labor. Battery warranty covers most cases through 8yr/100k mi, but out-of-warranty module failures run $4k-7k per module. Cell rebalancing via software is attempted first at 2 hours diagnostic time.
Estimated cost: $500-9,000
Front Drive Motor Bearing Noise and Failure
Occasional · medium severity
Typical onset: 30,000-70,000 mi
Symptoms: Whining or grinding noise from front axle during acceleration, Vibration through floorboards at highway speed, Reduced AWD performance or front motor disconnect codes, Metallic debris in drive unit oil during service
Fix: Front drive unit shares housing with reduction gears and uses sealed bearings that can fail prematurely from contamination or manufacturing defects. Drive motor R&R is 8-10 hours—requires disconnecting high-voltage cables (lockout/tagout mandatory), draining drive unit oil, dropping front subframe, and pulling motor assembly. Independent shops need at least 1000V insulated tools and EV training. Often covered under 5yr/60k powertrain warranty if caught early. Bearing noise should never be ignored—catastrophic failure can damage stator windings.
Estimated cost: $3,500-8,500
Dashboard Touchscreen and Instrument Cluster Failures
Occasional · low severity
Symptoms: 17-inch center screen goes black or freezes during operation, Gauge cluster flickers or displays incorrect information, Loss of backup camera or 360-degree view, Infotainment system won't respond to inputs or boot up
Fix: The massive touchscreen and digital gauge cluster share a common power supply module behind the dash. Failures are usually traced to software corruption or power module issues, not the screens themselves. Software resets and updates resolve 60% of cases at 1 hour labor. Full dashboard removal for screen or power module replacement is 5-7 hours due to complex wire harnesses and trim panel clips. GM has issued several TSBs for screen calibration and power cycling procedures.
Estimated cost: $200-3,200
Transmission Oil Cooler Line Failures
Occasional · medium severity
Typical onset: 15,000-50,000 mi
Symptoms: ATF puddles under vehicle near driver-side frame rail, Low transmission fluid warnings on dash, Whining noise from reduction gearbox, Burnt fluid smell during operation
Fix: Even though it's a single-speed EV drive unit, it uses ATF for cooling and lubrication, and that fluid runs through a dedicated cooler with rubber hoses and hard lines. Cooler lines are routed near the front subframe and can chafe on mounting brackets or crack at crimp fittings. Replacement is straightforward at 2-3 hours labor but requires Ultium-spec ATF (not conventional Dexron). Running low on fluid will overheat the reduction gears and damage seals, leading to full transmission R&R at 8-12 hours. Catch leaks early.
Estimated cost: $400-1,800
Owner tips
Check inverter and drive unit coolant levels every 10k miles—GM's service intervals are too long for first-gen Ultium trucks
Keep software updated via OTA or dealer visits—many drivability issues are code-related, not hardware
Use only DC fast charging from reputable networks; sketchy chargers can cause battery management system faults
Inspect transmission oil cooler lines annually for chafing where they contact subframe—preventable failure
Find a shop with EV certification and 1000V-rated tools before you need repairs; dealer rates for Ultium work are brutal
Skip it for now—wait until 2026+ model years after GM works out the first-generation Ultium bugs, unless you're comfortable with warranty repairs and limited independent shop support.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
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Fitment notes: 12V auxiliary battery for vehicle systems; main propulsion uses high-voltage lithium-ion traction battery
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Every control module on the 2024-2026 Chevrolet Silverado EV RST — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
Rear Drive Unit Control Module (RDUCM)3.8 hr R&Rsecurity gateway +1.2 hr4WD models▸ programming details
📍 Integrated with rear drive unit assembly, rear axle center
🔧 GM SPS2 / Techline Connect
⚠️ Controls rear electric drive motor and inverter; requires HV isolation and rear drive unit removal
⚠️ Pedestrian warning sound generator for low-speed EV operation; no coding typically required
Transmission Control Module (TCM)no coding
📍 Not applicable - single-speed EV drivetrain
⚠️ No traditional transmission; drive unit controlled by PPIM
Not applicable (N/A)no coding
📍 Not applicable - battery electric vehicle
⚠️ No fuel system on EV
Not applicable (N/A)no coding
📍 Not applicable - independent front/rear motor control
⚠️ AWD models use independent front and rear drive units controlled by PPIM
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
General Motors, LLC (GM) is recalling certain 2024 Chevrolet Silverado EV and 2024-2025 GMC Sierra EV pickup trucks. The bolt that secures the rear center seat belt assembly to the seat structure may not have been properly tightened.
Consequence: An improperly secured seat belt assembly may not restrain an occupant as intended, increasing the risk of injury in a crash.
Remedy: GM will tighten the bolt that attaches the center seat belt assembly to the rear seat structure, free of charge. All affected vehicles are still in dealer inventory and, therefore, no owner letters will be mailed. Owners may contact GM customer service at 1-888-988-7267, or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242489901.
ELECTRICAL SYSTEM:WIRING · 24V320000
2024-05-09
General Motors, LLC (GM) is recalling certain 2024 Cadillac Lyriq, Chevrolet Blazer EV, Chevrolet Silverado EV, GMC Hummer EV SUV, and GMC Sierra EV vehicles. The electric motors in the rear drive units may have insufficiently insulated wires that can contact each other, resulting in a loss of drive power.
Consequence: A loss of drive power increases the risk of a crash.
Remedy: Dealers will replace the rear drive unit, free of charge. Owner notification letters were mailed May 16, 2024. Owners may contact Chevrolet customer service at 1-800-222-1020; Cadillac customer service at 1-800-458-8006; Hummer customer service at 1-800-732-5493; or GMC customer service at 1-800-462-8782. GM's number for this recall is N242447080.
SEAT BELTS:REAR/OTHER · 24V087000
2024-02-08
General Motors (GM) is recalling certain 2024 Chevrolet Silverado EV vehicles. An incorrect seat belt bezel on the second-row center seat belt may damage or tear the seat belt in the event of a crash.
Consequence: A torn or damaged seat belt may not properly restrain an occupant in a crash, increasing the risk of injury.
Remedy: Do not allow passengers to sit in the second-row center seat until remedied. Dealers will replace the second-row center seat belt bezel, free of charge. Owner notification letters were mailed March 13, 2024. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242430730.
SEAT BELTS:FRONT:ANCHORAGE · 23V786000
2023-11-22
General Motors, LLC (GM) is recalling certain 2023-2024 GMC Hummer EV pick up, 2024 GMC Hummer EV SUV, and 2024 Chevrolet Silverado EV vehicles. The left or right front seat belt buckle attachment bolts may not be tightened properly.
Consequence: An improperly tightened seat belt buckle may not restrain an occupant as intended, increasing the risk of injury during a crash.
Remedy: Dealers will tighten the left and right front seat belt buckle attachment bolts, free of charge. Owner notification letters were mailed December 21, 2023. Owners may contact GMC customer service at 1-833-EVCHEVY (1-833-382-4389) (TTY 711 / 1-800-833-2438) /1-833-HUMMER-EV (1-833-486-6373) (TTY 711 / 1-800-833-2438). GM's number for this recall is N232419280.
Wiper blades
RST trim of Silverado EV; same specifications as base EV model
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 2024 Chevrolet Silverado EV RST Electric Dual Motor and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years.