The 2024 Buick Encore GX shares GM's D2 platform with the Chevy Trailblazer and uses small-displacement turbo three-cylinders that are proving troublesome in real-world service. Early catastrophic engine failures and transmission cooler issues dominate the problem landscape for this very recent model.
1.3L Turbo I3 Catastrophic Engine Failure
Occasional · high severity
Typical onset: 15,000-50,000 mi
Symptoms: Sudden loss of power with severe knocking or rattling, Metal shavings in oil during routine changes, Check engine light with misfire codes and low oil pressure warnings, White or blue smoke from exhaust indicating ring or bearing failure
Fix: Complete engine replacement or rebuild required. Pistons, rings, bearings, and sometimes crankshaft fail prematurely. Short block replacement is 18-24 hours labor; full rebuild adds another 6-10 hours if heads need work. Most shops replace rather than rebuild due to parts availability and warranty concerns.
Estimated cost: $8,500-14,000
Transmission Oil Cooler Line Leaks
Common · medium severity
Typical onset: 20,000-60,000 mi
Symptoms: Transmission fluid puddles under vehicle near front crossmember, Burnt transmission fluid smell after highway driving, Harsh or delayed shifts when fluid level drops, Pink or red fluid visible on radiator support or belly pan
Fix: Cooler lines crack at crimp points or corrode at fittings. Replace both lines as a pair (one side fails, other follows within months). 2.5-3.5 hours labor includes fluid flush. OE lines have same design flaw; aftermarket braided options exist but aren't widely stocked yet.
Estimated cost: $450-750
Transmission Mount Failure
Common · medium severity
Typical onset: 30,000-70,000 mi
Symptoms: Clunking when shifting from Park to Drive or Reverse, Excessive engine movement visible when accelerating hard, Vibration through cabin at idle that changes with gear selection, Transmission shifter feels loose or notchy
Fix: Upper transmission mount (torque strut) separates or tears. The three-cylinder's inherent vibration accelerates wear. Replace mount and inspect lower transmission mount simultaneously. 1.5-2 hours labor. Some techs also replace engine mounts preventively at this point.
Estimated cost: $280-450
1.2L Turbo I3 Head Gasket Failure
Occasional · high severity
Typical onset: 40,000-80,000 mi
Symptoms: Coolant consumption without visible external leaks, White smoke from exhaust especially on cold starts, Overheating during sustained highway speeds or towing, Bubbles in coolant reservoir when engine running
Fix: Head gasket fails between cylinders or into coolant jacket. The 1.2L runs hotter than the 1.3L and gasket doesn't hold up. Head must be resurfaced (usually warped). 12-16 hours labor for gasket replacement including head machine work. Some techs see repeat failures if head isn't properly decked.
Estimated cost: $2,800-4,200
Fuel Filter Premature Clogging
Common · low severity
Typical onset: 25,000-50,000 mi
Symptoms: Hard starting especially when fuel tank below half, Loss of power under acceleration or when climbing grades, Engine stumble or hesitation during highway merging, Fuel pump whine audible from rear seat area
Fix: In-tank fuel filter clogs earlier than maintenance schedule suggests, likely due to ethanol fuel degradation or tank manufacturing debris. Pump module replacement required (filter non-serviceable separately). 2-3 hours labor. Drop tank, swap module, prime system.
Estimated cost: $650-950
Instrument Cluster Software Glitch
Occasional · low severity
Symptoms: Speedometer or tachometer freezing or reading incorrectly, Warning lights illuminating randomly then clearing, Infotainment screen going black intermittently, Backup camera failing to engage when shifting to Reverse
Fix: Software issue covered by NHTSA recall (instrument cluster). Dealer reflash takes 0.5-1 hour but requires GM Tech2 or MDI equipment. Some clusters need full replacement if reflash doesn't resolve issue (4-6 week backorder common). No cost if recall work; $150-300 for diagnosis if outside recall scope.
Estimated cost: $0-800
Owner tips
Change oil every 5,000 miles maximum with quality synthetic—these small turbos are oil-sensitive and extended intervals accelerate bearing wear
Monitor transmission fluid color and level every 15,000 miles; dark or burnt-smelling fluid warrants immediate service
Inspect transmission cooler lines annually for seepage or corrosion, especially in salt-belt states
Run top-tier fuel and add fuel system cleaner every 10,000 miles to prevent injector and filter clogging
Check for software updates at dealer annually—many drivability issues resolve with calibration updates
Hard pass for used purchase until these drivetrains prove durability beyond 100,000 miles—catastrophic engine failures this early suggest fundamental design issues that warranty won't cover once you own it used.
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.
Fitment notes: AGM battery required for start-stop system; H6 group may be acceptable alternative
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Every control module on the 2020-2026 Buick Encore GX — 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.
📍 Integrated into transmission assembly, driver side of transaxle
🔧 GM SPS2 via ACDelco TDS + J2534
⚠️ Requires transmission fluid drain and partial disassembly. VIN programming and adaptive relearn required. CVT models (1.3L) vs 9-speed (1.2L) use different TCMs.
Electric Power Steering Control Module (EPSCM)2.0 hr R&Rdealer / factory tool +0.8 hr▸ programming details
📍 Integrated into steering column assembly, below instrument panel
🔧 GM SPS2 or Autel MaxiSys
⚠️ Requires steering angle sensor calibration and steering position relearn after replacement. Column disassembly required.
📍 Behind instrument panel, center console area near BCM
🔧 GM SPS2 via ACDelco TDS + J2534
⚠️ Security gateway module. Controls CAN bus communication and security authentication. Requires online GM authentication for programming. Critical module - failure affects multiple systems.
📍 Engine compartment, driver side firewall area, mounted to bulkhead
🔧 GM SPS2 via ACDelco TDS + J2534
⚠️ Requires VIN programming, theft deterrent relearn, and online authentication through security gateway. 1.3L turbo and 1.2L turbo use different ECM part numbers.
HVAC Control Module (HVAC)1.2 hr R&Rrelearn only +0.3 hr▸ programming details
📍 Behind center instrument panel, integrated with climate control head unit
🔧 GM SPS2 or basic scan tool
⚠️ Automatic climate control models only. Manual systems use non-programmable control head. Actuator calibration required after replacement.
Parking Assist Control Module (PACM)1.2 hr R&Rrelearn only +0.3 hr▸ programming details
📍 Behind rear bumper cover, center area near hitch receiver
🔧 GM SPS2 or Autel MaxiSys
⚠️ Rear park assist models only. Requires sensor calibration after replacement. Front and rear park assist use same module on higher trims.
Suspension Control Module (SCM)1.2 hr R&Rrelearn only +0.3 hr▸ programming details
📍 Under vehicle, mounted to rear suspension crossmember
🔧 GM SPS2 or Autel MaxiSys
⚠️ Adaptive suspension models only (rare on Encore GX). Requires ride height calibration after replacement.
📍 Behind center stack touchscreen display, integrated with radio head unit
🔧 GM SPS2 via ACDelco TDS + J2534
⚠️ 7-inch or 8-inch touchscreen depending on trim. Requires VIN programming and feature configuration. OnStar and connected services reactivation required.
Remote Control Door Lock Receiver (RCDLR)1.0 hr R&Rsecurity gateway +0.8 hr▸ programming details
📍 Behind instrument panel, center stack area near radio
🔧 GM SPS2 via ACDelco TDS + J2534
⚠️ Controls remote keyless entry and passive entry (if equipped). Requires VIN programming and key fob relearn. Security gateway locked.
📍 Behind instrument panel, center of driver display area
🔧 GM SPS2 via ACDelco TDS + J2534
⚠️ Requires VIN programming and mileage transfer from old module. Digital cluster (2022+) vs analog cluster (2020-2021) use different programming procedures.
Door Control Module (DCM)0.8 hr R&Rrelearn only +0.2 hr▸ programming details
📍 Inside driver door panel, behind door trim
🔧 GM SPS2 or Autel MaxiSys
⚠️ Driver door only on most trims. Controls power windows, mirrors, and door locks. Window auto-up/down relearn required after replacement.
Headlamp Control Module (HCM)0.8 hr R&Rrelearn only +0.2 hr▸ programming details
📍 Behind left headlamp assembly, driver side front fender area
🔧 GM SPS2 or Autel MaxiSys
⚠️ LED headlamp models only. Halogen models use BCM control. Headlamp aiming calibration recommended after replacement.
Seat Control Module (SCM)0.5 hr R&Rrelearn only +0.2 hr▸ programming details
📍 Under driver seat, mounted to seat frame
🔧 Basic scan tool
⚠️ Power seat models only. Controls seat position memory and heating (if equipped). Simple relearn procedure, no VIN programming typically required.
Rear Vision Camera Module (RVCM)0.5 hr R&Rrelearn only +0.2 hr▸ programming details
📍 Integrated into liftgate handle assembly, center of liftgate
🔧 GM SPS2 or Autel MaxiSys
⚠️ Standard on all trims. Camera calibration and dynamic guidelines calibration required after replacement. Surround vision (2022+) uses additional cameras.
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 Buick Encore GX, Envista, and Chevrolet Trax vehicles. The software in the Virtual Cockpit Unit Module (VCU) may cause the instrument panel display to intermittently go blank at vehicle startup or while driving.
Consequence: A blank instrument panel will not show critical information, such as vehicle speed and warning lights, increasing the risk of a crash.
Remedy: The VCU software will be updated by a dealer or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed December 4, 2023. Owners may contact Buick customer service at 1-800-521-7300 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is A232424320.
Performance
Horsepower
155hp
Torque
174lb-ft
0–60 mph
9.2sec
Quarter mile
16.8sec
Top speed
112mph
Capability & size
Towing capacity
1,000lb
Payload
1,050lb
Curb weight
3,300lb
Wiper blades
Standard hook arm attachment for all three positions
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 Buick Encore GX 1.3L Turbo I3 and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.