This procedure addresses a component not present on 2014-2019 Toyota Corollas. These vehicles use a torsion beam rear suspension without a Panhard bar or track bar.

Warnings

Tools required

Preparation

1. Verify the actual suspension concern - Panhard bars are not used on this vehicle platform
2. If lateral rear axle movement is suspected, prepare to inspect torsion beam mounting bushings and rear suspension components
3. Park vehicle on level ground and apply parking brake
4. Place wheel chocks on front wheels

Procedure

1. 1

   Verify Component Absence
   Raise the rear of the vehicle safely on jack stands and inspect the rear suspension. The 2014-2019 Corolla uses a torsion beam (twist beam) rear suspension. You will find a U-shaped beam connecting the two rear wheels with coil springs and shock absorbers. There is no Panhard bar, track bar, or lateral locating link present on this design.
2. 2

   Identify Actual Suspension Components
   The rear suspension consists of: torsion beam axle assembly, two coil springs, two shock absorbers, and suspension bushings at the forward mounting points. Lateral location is inherent to the torsion beam design - the beam itself prevents lateral movement of the rear axle.
3. 3

   Inspect for Actual Problem
   If you suspect rear axle lateral movement or dog-tracking, inspect the torsion beam front mounting bushings for deterioration, the shock absorber mounts for damage, and verify the rear alignment has not been compromised by impact damage to the beam itself.
4. 4

   Check Alternative Components
   Examine the two forward mounting points where the torsion beam attaches to the chassis via rubber bushings. These bushings can wear and allow unwanted movement. Also inspect the spring seats and shock absorber mounting points for damage or looseness.
5. 5

   Consult Proper Repair Procedure
   If rear suspension repair is needed, consult the appropriate procedure for torsion beam bushing replacement, shock absorber replacement, or rear spring replacement depending on the actual diagnosis. A four-wheel alignment should be performed after any rear suspension repairs.

Reassembly

1. This procedure does not apply to this vehicle as the component does not exist
2. If other rear suspension work was performed, lower vehicle with weight on wheels before final torquing of torsion beam mounting bolts
3. Torque wheel lug nuts to specification in star pattern

Verification

• Confirm vehicle model and year - Panhard bars are typically found on solid rear axle vehicles with leaf springs or certain live axle designs
• If rear handling issues exist, have a professional four-wheel alignment performed to diagnose the actual problem
• Test drive and verify rear suspension operates normally with no unusual noises or handling concerns

More procedures for this vehicle