O2 sensor warranty
From Lexus' website, it looks like they're not covered by powertrain warranty:
Powertrain Warranty
The Powertrain Warranty is for 72 months or 70,000 miles, whichever occurs first. Except for the situations listed on the Basic Warranty page, this warranty covers repairs needed to fix defects in materials or workmanship of any component listed below:
Engine
Cylinder block and head and all internal parts, timing belt and cover, flywheel, oil pan, water pump, fuel pump, engine mounts, engine control computer, seals and gaskets
Transmission and Transaxle
Case and all internal parts, torque converter, clutch cover, mounts, engine control computer, seals and gaskets
Rear-Wheel Drive System
Differential carrier assembly, driveshaft, axle carrier, axle case, axle bearing, axle shaft, seals and gaskets
So if it's covered it would be under the Emissions warranty. Have you checked the warranty booklet in your car for the Emissions warranty info? I can't find it on their website.

Looks like a very limited number of items are marked as having 8/80 coverage like the ECM, the catalytic converters and the DLC connector. The rest appear to fall under the regular 4/50 coverage. So unless I'm missing something, it looks like I'm out of luck unless it's the cat.
Which leaves me in a quandary about how to proceed... Get an $80 O2 sensor from eBay and try that first, or bring it to the dealer and hope it's the cat...

Looks like a very limited number of items are marked as having 8/80 coverage like the ECM, the catalytic converters and the DLC connector. The rest appear to fall under the regular 4/50 coverage. So unless I'm missing something, it looks like I'm out of luck unless it's the cat.
Which leaves me in a quandary about how to proceed... Get an $80 O2 sensor from eBay and try that first, or bring it to the dealer and hope it's the cat...
I was under the impression, perhaps false, that the emissions warranty covered issues that would cause you to fail an emissions test, and I would assume with your car throwing an O2 failure-related code, you wouldn't pass emissions. Maybe I'm completely wrong here, I just thought I read that in the manual.
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~ Joe Z
Celebrating Lexus & Toyota from Around the Globe
If you break something in a snow storm or with road debris, that's really not considered a "part failure"..

~ Joe Z
I may do this - perhaps I can get them to cover it as a good-will gesture.
Joe, I was literally stuck in a snow storm. Being in NJ, the counties don't like to plow roads until after 6am when they don't have to pay for OT to their road crews. There was probably 3" or more of snow on the highway, was also the last time I ended up driving in the snow with that car.
My CEL/VSC/TRAC control all lit up like a christmas tree the other day..
ran the scanner... cant remember the EXACT code but I remember it reading
something regarding the MAF and...
rich bank1
rich bank4
I apologize for the vague information I can try and scan it again tomorrow.. I hate to think its my intake.. this is the 3rd intake I go through







