Fitment notes: H6 group may be alternate fitment; verify AutoStop/Start equipped models require AGM
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Control Modules — 2026 Buick Encore GX
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.
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA · 26V539000
2026-08-20
General Motors, LLC is recalling certain 2024-2025 Buick Envista, 2024-2026 Buick Encore GX, Chevrolet Trailblazer, and 2025 Chevrolet Trax vehicles. The rearview camera screen may display a distorted or blank image.
Consequence: A rearview image that does not display correctly reduces the driver's view behind the vehicle, increasing the risk of a crash.
Remedy: Dealers will inspect and replace the rearview camera, if necessary, free of charge. Letters informing owners of the safety risk were mailed September 17, 2026. Another letter will be mailed once the parts are available. Owners may contact Chevrolet customer service at 1-800-222-1020 or Buick customer service at 1-800-521-7300. GM's number for this recall is A262554900. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on August 20, 2026.
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 2026 Buick Encore GX 1.3L Turbo I3 and can vary by trim.
🔧 Built by master technician Chris Hackleman · Master Technician · 20+ years.