Toyota 2003 ECHO, Owner'S Manual, Page: 175 / 276

To ensure optimum performance and maintain the quality built into
your vehicle’s emission control systems, Toyota recommends the use of
Genuine Toyota Parts when servicing or repairing the systems.
Warranty coverage is not dependent upon the use of any particular
brand of replacement parts and you may elect to use non-Genuine
Toyota Parts for maintenance and repairs. However, use of replace–
ment parts that are not equivalent in quality to Genuine Toyota
Parts may impair the effectiveness of the emission control systems.
If you use replacement parts that have maintenance or replacement
schedules different from those of Genuine Toyota Parts, you must follow
the maintenance and replacement schedules for the parts you are using.
In addition, you should ensure that such parts are warranted by their
manufacturers to be equivalent to Genuine Toyota Parts.
If your vehicle fails a smog-check test, you may make a claim under the
Emission Performance Warranty. To do so, take your vehicle to an autho-
rized Toyota dealership and present a copy of the smog-check test
report. Also, take your maintenance records in case they are needed.
If your claim qualifies for coverage, the dealership will repair your vehi-
cle within 30 days (unless a shorter period is required by law). If your
claim is denied, Toyota will notify you in writing of the reason within
the same period. If we fail to do so, we will repair your vehicle free of
charge. The only exceptions allowed are when you request or agree to
a delay, or a delay is caused by factors beyond the control of Toyota or
the dealership.
For information on how to obtain service under the Emission Defect
Warranty, see page 29, “Obtaining Warranty Service.”
REPLACEMENT PARTS IF YOUR VEHICLE FAILS A SMOG-CHECK TEST
Your Warranties in Detail
24
California Emission Control Warranty