Fitment notes: AGM battery recommended for start-stop system; located in engine compartment
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Control Modules — 2026 Chevrolet TrailBlazer
Every control module on the 2021-2026 Chevrolet TrailBlazer — 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.
⚠️ Security gateway protected. Mileage and VIN programming required when replaced.
Rear Vision Camera Module (RVCM)0.8 hr R&Rrelearn only +0.2 hrwith rear vision camera (standard on most trims)▸ programming details
📍 Integrated with rear liftgate handle or rear bumper center
🔧 GDS2 (camera calibration)
⚠️ Camera alignment calibration may be required after replacement.
Headlamp Control Module (HCM)0.8 hr R&Rrelearn only +0.3 hrwith automatic headlamps or LED headlamps▸ programming details
📍 Engine compartment, behind driver side headlamp assembly
🔧 GDS2 (configuration)
⚠️ Configuration and calibration may be required depending on headlamp type.
Tire Pressure Monitor Control Module (TPMS)relearn only +0.2 hr▸ programming details
📍 Integrated within BCM or as separate module behind instrument panel
🔧 GDS2 or TPMS relearn tool
⚠️ Tire pressure sensor ID relearn required after tire rotation, replacement, or module replacement. Function may be BCM-integrated.
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.
Vehicle Info — 2026 Chevrolet TrailBlazer
Performance
Horsepower
155hp
Torque
174lb-ft
Wiper blades
Assuming carryover specifications. Actual 2026 specs subject to manufacturer changes.
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 Chevrolet TrailBlazer 1.3L I3 Turbo AWD and can vary by trim.
🔧 Built by master technician Chris Hackleman · Master Technician · 20+ years.