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Buick Encore Alignment

The Buick Encore, the best-selling Buick for several years, is based on the Gamma II platform that is shared with the Chevy Trax.

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Like a lot of late-model vehicles, the alignment specs are tight with almost no adjustments built-in, except for toe. However, proper alignment is key to the health of the tires, as well as some of the advanced safety systems.

Front Suspension

The front suspension on the Encore has a single lower control arm and MacPherson struts. Some models have a suspension dampener on the front bolt of the lower control arm. The part helps to control vibration that could be transmitted to the subframe.

If the caster is out of specification, look at the bushings on the lower control arm for damage. Camber can be adjusted by installing cam bolts in the lower hole of the strut mount. This should provide ±1.75 degrees of adjustability.

Inspection of the lower control arm is a critical part of aligning the Encore. The arm can be bent due to curb strikes and the bushings can quickly deteriorate. Also, inspect the sway bar links for any signs the ends have play.

Rear Suspension

The Encore comes in front-wheel-drive and all-wheel-drive versions. Both versions use a trailing arm beam axle. The camber and toe for the front-wheel-drive version can be adjusted with shims. There are no adjustments for the all-wheel-drive version.

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If camber or toe are out of specification in the rear, you should look for a damaged wheel. If the thrust angle is out of specifications, inspect the trailing arm bushings.

Ride Height

Ride height is a diagnostic measurement that should be used to compare the height of the front and rear suspension and side to side. The ride height front-to-rear is measured at the top of the wheel arches and the distance should be within 15mm of each other. Additional measurements can be taken by measuring the vertical distance between the lower ball joint and the control arm bolt center. In the rear, the distance is measured between the lower shock bolt and body. The measurements should be performed with a full tank of fuel.

Steering Angle Sensor Calibration

Centering of the steering angle sensor is required after any alignment or steering component replacement.

  1. Using the steering wheel, align the front wheels forward.
  2. Apply the parking brake or set the transmission to Park.
  3. Install the scan tool to the data link connector.
  4. Turn the ignition ON, and the engine OFF.
  5. Select Steering Wheel Angle Sensor Reset in the Steering Wheel Angle Sensor Module Control Functions list.
  6. Follow the scan tool directions to complete the reset procedure.
  7. Select Steering Wheel Angle Sensor Learn in the list.
  8. Follow the scan tool directions to complete the learn procedure.
  9. Clear any DTCs that may be set.

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