MG
Moderator
Please see T-SB-0083-21
Applicability:
2018-2020 Toyota Land Cruiser
Introduction:
Some 2018 – 2020 model year Land Cruiser vehicles equipped with Active Height Control may exhibit a squeak noise from the rear of the vehicle over uneven surfaces when the suspension is set to the low height position. The squeak noise is caused by contact between the passenger rear lower control arm and lower control arm support bracket. Follow the Repair Procedure in this bulletin to address this condition.
Warranty Information:
Visual Inspection To Confirm Condition
APPLICABLE WARRANTY:
• This repair is covered under the Toyota Basic Warranty. This warranty is in effect for 36 months or 36,000 miles, whichever occurs first, from the vehicle’s in-service date.
• Warranty application is limited to occurrence of the specified condition described in this bulletin.
Repair Procedure:
1. Confirm the condition exists. Set the suspension height to neutral or high and visually inspect the passenger rear lower control arm and lower control arm support bracket. Are there signs of contact/witness marks between the two components?
• YES — Sublet the vehicle to a qualified collision repair facility for repair.
• NO — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual.
**NOTE The remaining steps in this bulletin are for the collision repair facility.
2. Disconnect the lower control arm from the bracket.
3. Using masking tape, mark the support bracket to use as a guide for removing excess material.
4. Using a cut-off wheel, remove the excess material from the control arm bracket.
5. Remove the masking tape used as the cut line guide. Using a bonded abrasive disc, remove the burrs and smooth the surface of the cut.
6. Using a bonded abrasive disc, buff the contact/witness marks on the control arm.
7. According to the coating manufacturer recommendations, prepare the newly exposed metal on both the control arm and control arm support bracket for coating.
8. Using a two-part epoxy primer, coat the exposed metal of the control arm and control arm bracket. Follow manufacturer recommendations for mixing, application, and cure time.
9. Cover the primer with a black topcoat. Follow manufacturer recommendations for application
10. Reconnect the control arm to the bracket
11. Set the suspension height to the low setting and test-drive over the vehicle uneven surfaces to verify the noise has been eliminated.
12. Visually inspect the control arm and bracket while in the low setting to verify that the two components are no longer making contact.
Applicability:
2018-2020 Toyota Land Cruiser
Introduction:
Some 2018 – 2020 model year Land Cruiser vehicles equipped with Active Height Control may exhibit a squeak noise from the rear of the vehicle over uneven surfaces when the suspension is set to the low height position. The squeak noise is caused by contact between the passenger rear lower control arm and lower control arm support bracket. Follow the Repair Procedure in this bulletin to address this condition.
Warranty Information:
Visual Inspection To Confirm Condition
APPLICABLE WARRANTY:
• This repair is covered under the Toyota Basic Warranty. This warranty is in effect for 36 months or 36,000 miles, whichever occurs first, from the vehicle’s in-service date.
• Warranty application is limited to occurrence of the specified condition described in this bulletin.
Repair Procedure:
1. Confirm the condition exists. Set the suspension height to neutral or high and visually inspect the passenger rear lower control arm and lower control arm support bracket. Are there signs of contact/witness marks between the two components?
• YES — Sublet the vehicle to a qualified collision repair facility for repair.
• NO — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual.
**NOTE The remaining steps in this bulletin are for the collision repair facility.
2. Disconnect the lower control arm from the bracket.
3. Using masking tape, mark the support bracket to use as a guide for removing excess material.
4. Using a cut-off wheel, remove the excess material from the control arm bracket.
5. Remove the masking tape used as the cut line guide. Using a bonded abrasive disc, remove the burrs and smooth the surface of the cut.
6. Using a bonded abrasive disc, buff the contact/witness marks on the control arm.
7. According to the coating manufacturer recommendations, prepare the newly exposed metal on both the control arm and control arm support bracket for coating.
8. Using a two-part epoxy primer, coat the exposed metal of the control arm and control arm bracket. Follow manufacturer recommendations for mixing, application, and cure time.
9. Cover the primer with a black topcoat. Follow manufacturer recommendations for application
10. Reconnect the control arm to the bracket
11. Set the suspension height to the low setting and test-drive over the vehicle uneven surfaces to verify the noise has been eliminated.
12. Visually inspect the control arm and bracket while in the low setting to verify that the two components are no longer making contact.