Description
Factory Buick Regal Workshop Manual (2018-2020)
This factory-level service manual covers the complete sixth-generation Buick Regal lineup sold in the United States, including the Regal Sportback and Regal TourX wagon. Every trim level from Preferred through GS and Avenir is supported with OEM repair procedures, wiring diagrams, and torque specs.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | 2.0L LTG turbocharged inline-4 (250 hp), 3.6L LGX V6 (310 hp) |
| Hybrid | 54 kW GM Voltec electric motor; FHEV drivetrain; lithium-ion battery |
| Transmissions | 9-speed automatic 9T50 / 9T60; 8-speed automatic Aisin AF50-8 |
| Drive | FWD, AWD |
| Model Years | 2018, 2019, 2020 |
| Badge Twins | Opel/Vauxhall Insignia (E2 platform) |
Common Regal Repairs Covered
| System | Procedures |
|---|---|
| 9T50/9T60 Transmission | Harsh shift diagnosis, fluid change, valve body service, TCM reprogramming |
| 2.0L LTG Turbocharger | Boost leak diagnosis, wastegate actuator replacement, intercooler service |
| Electrical / BCM | Body control module diagnostics, wiring harness pinout checks, infotainment fault codes |
| Suspension | Front strut and rear shock replacement, alignment specs, control arm bushing inspection |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
Is the Regal TourX wagon included in this manual?
Yes. The TourX all-wheel-drive wagon shares the GM E2 platform with the Sportback and is fully covered, including its AWD-specific drivetrain procedures, suspension geometry differences, and cargo area components.
Does this manual cover the Opel/Vauxhall Insignia as well?
The sixth-generation Regal is mechanically derived from the Opel/Vauxhall Insignia B on the GM E2 platform, so many procedures overlap. However, this manual is specifically compiled for the US-market Buick Regal and references Buick part numbers, trim designations, and emissions calibrations.
Are 9-speed automatic transmission rebuild procedures included?
Yes. Both the 9T50 and 9T60 nine-speed automatics are documented with complete teardown sequences, clutch pack specifications, torque values, and GM diagnostic trouble code (DTC) flowcharts – including known harsh-shift concerns addressed in GM technical service bulletins.
What format is the manual?
The manual is delivered as a fully searchable PDF compatible with Windows, macOS, iOS, Android, and Linux. Download begins immediately after purchase, and you can re-download at any time with no expiry.
Reviews
There are no reviews yet.