DRIVE SHAFT SYSTEM > General Diagnostic Table
INSPECTION
NOTE:
Vibration while cruising may be caused by an unbalanced tire, improper tire inflation pressure, improper wheel alignment, etc.
Symptoms | Possible cause | Corrective action |
Noise or vibration from propeller shaft |
• Center bearing
• Runout of propeller shaft
• Loose or gap at connections
Inspect the propeller shaft. Propeller Shaft > INSPECTION">
Abnormal wheel vibration
Wheel is out of balance.
Check the wheel balance. Tire and Wheel > INSPECTION">
Front wheel alignment
Check the front wheel alignment. Wheel Alignment > INSPECTION">
Rear wheel alignment
Check the rear wheel alignment. Wheel Alignment > INSPECTION">
Front strut
Check the front strut. Front Strut > INSPECTION">
Rear shock absorber
Check the rear shock absorber. Rear Shock Absorber > INSPECTION">
Front drive shaft
Check the front drive shaft. Front Drive Shaft > INSPECTION">
Rear drive shaft
Check the rear drive shaft. Rear Drive Shaft > INSPECTION">
Front hub unit bearing
Check the front hub unit bearing. Front Hub Unit Bearing > INSPECTION">
Rear hub unit bearing
Check the rear hub unit bearing. Rear Hub Unit Bearing > INSPECTION">
Noise from the underbody
Wheel is out of balance.
Check the wheel balance. Tire and Wheel > INSPECTION">
Front wheel alignment
Check the front wheel alignment. Wheel Alignment > INSPECTION">
Rear wheel alignment
Check the rear wheel alignment. Wheel Alignment > INSPECTION">
Front strut
Check the front strut. Front Strut > INSPECTION">
Rear shock absorber
Check the rear shock absorber. Rear Shock Absorber > INSPECTION">
InstallationSpecification
REAR SUSPENSION > General DescriptionSPECIFICATIONRefer to “SPECIFICATIONS” in “FRONT SUSPENSION” section for rear suspension specifications. General Description > SPECIFICATION">NOTE:• Front toe-in, rear toe-in and front camber can be adjusted. Adjust if ...
Headlight beam leveler
The Subaru Ascent is equipped with high-performance LED headlights, which provide
significantly greater illumination compared to traditional halogen systems.
When carrying heavy loads, the angle of the headlights may shift upward, potentially
causing glare for oncoming drivers. To counteract th ...
Operation
INSTRUMENTATION/DRIVER INFO (DIAGNOSTICS) > Subaru Select MonitorOPERATION• For detailed operation procedures, refer to “Application help”.• If the combination meter or MFD can not communicate with Subaru Select Monitor, perform the “Communication for Initializing Im ...