Buick Regal 2018-2025 Owners Manual / Vehicle Care
Buick Regal: Vehicle Care
- General Information
- Vehicle Checks
- Doing Your Own Service Work
- Engine Compartment Overview
- Engine Oil
- Selecting the Right Engine Oil
- Engine Oil Life System
- Engine Air Cleaner/Filter
- Cooling System
- Checking Coolant
- Engine Overheating
- Washer Fluid
- Brakes
- Brake Fluid
- Battery - North America
- All-Wheel Drive
- Wiper Blade Replacement
- Windshield Replacement
- Bulb Replacement
- Electrical System
- Wheels and Tires
- Tires
- Tire Sidewall Labeling
- Tire Terminology and Definitions
- Tire Pressure
- Tire Pressure Monitor System
- Tire Pressure Monitor Operation
- Tire Inspection
- When It Is Time for New Tires
- Different Size Tires and Wheels
- Wheel Alignment and Tire Balance
- If a Tire Goes Flat
- Tire Sealant and Compressor Kit (I)
- Tire Sealant and Compressor Kit (II)
- Storing the Tire Sealant and Compressor Kit (With Subwoofer)
- Tire Changing
- Compact Spare Tire
- Jump Starting
- Towing the Vehicle
- Appearance Care
READ NEXT:
General Information
For service and parts needs, visit
your dealer. You will receive
genuine GM parts and GM-trained
and supported service people.
Genuine GM parts have one of
these marks:
California Proposition
65 War
Doing Your Own
Service Work
Warning:
It can be dangerous to work on
your vehicle if you do not have
the proper knowledge, service
manual, tools, or parts. Always
follow owner's manual procedures
and consult the service manual
fo
SEE MORE:
DTC P2122, P2123, P2127, P2128, or P2138
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic
procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic approach.
Diagnostic Procedure Instructions provide an overview of each diagnostic
category.
DTC Descriptors
DTC P2122
Line Pressure Check
Special Tools
EN-21867 Pressure Gauge
EN-21867-50 Transmission Line Pressure Adapter
For equivalent regional tools, refer to Special Tools.
Line Pressure
1. Apply the parking brake and chock the wheels.
2. Install an SLT current measuring machine.
If the machine is not available, installation
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