Buick Regal 2018-2026 Owners Manual / Service and Maintenance
Buick Regal: Service and Maintenance
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General Information
Your vehicle is an important
investment. This section describes
the required maintenance for the
vehicle. Follow this schedule to help
protect against major repair
expenses resulting from neglect or
i
Maintenance Schedule
Owner Checks and Services
At Each Fuel Stop
Check the engine oil level.
Once a Month
Check the tire inflation
pressures.
Inspect the tires for wear.
Check the windshield washer
fluid level.
Additional Maintenance
and Care
Your vehicle is an important
investment and caring for it properly
may help to avoid future costly
repairs. To maintain vehicle
performance, additional
maintenance services may be
required.
It is rec
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Navigation
OnStar navigation requires a
specific OnStar service plan.
Press to receive Turn-by-Turn
directions or have them sent to the
vehicle's navigation screen,
if equipped.
Turn-by-Turn Navigation
1. Press to connect to an
Advisor.
2. Request directions to be
downloaded to the vehicle.
3. Follow the
DTC C056D
Diagnostic Instructions
Perform the Diagnostic System Check prior to using this diagnostic
procedure:Diagnostic System
Check - Vehicle
Review the description of Strategy Based Diagnosis:Strategy Based
Diagnosis
An overview of each diagnostic category can be found here:Diagnostic
Procedure
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