Steering - Poor On Center Steering Feel
T-SB-0140-10Rev1
June 3, 2010
Steering On-Center Feel
Service Category
Steering
Section
Power Assist Systems
Market
USA
Applicability
NOTE
This TSB does NOT apply to XRS grade Corolla vehicles.
TSB REVISION NOTICE
July 21, 2010 Rev1:
^ Applicability has been updated with additional VDS information and a Note.
Any previous printed versions of this service bulletin should be discarded.
Introduction
Some customers have expressed dissatisfaction with the on-center steering feel on the 2009 - 2010 model year Corolla vehicles. A re-tuned Power Steering Computer Assembly has been developed to provide an alternative steering feel for these customers.
Parts Information
Warranty Information
APPLICABLE WARRANTY
^ Op Code 043233: This repair is covered under the Toyota Comprehensive Warranty. Wheel alignments are limited to one repair during the first 12 months or 20,000 miles, whichever occurs first, from the vehicle's in-service date.*
^ Op Code STIOO6: This repair is covered under the Toyota Comprehensive 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.
* For New York dealers the coverage is extended to 24 months/18,000 miles due to New York "lemon law legislation.
Repair Procedure
1. Test drive the vehicle to confirm the customer's complaint.
2. Check for correct tire pressure on all four wheels and adjust per the tire pressure label located on the driver's door.
Low or high tire pressure will affect on-center feel.
3. Confirm that the vehicle does not have a pulling condition. If a pull is felt to either side, diagnose and repair the condition.
Refer to TSB No. T-SB-0391-08 "Repair Manual Supplement: Vehicle Pulling to One Side".
4. If NO pull is detected, proceed with the following:
A. Inspect the front and rear tires for any irregular wear that might indicate an alignment concern. If tires show excessive wear, replace as needed.
B. Check the front and rear suspension components for any damage or irregular wear, and repair as necessary.
5. If the above conditions are NOT present, replace the Power Steering Computer Assembly.
Refer to the Technical Information System (TIS), applicable model year Corolla Repair Manual: