Go Back   Club Lexus Forums > Lexus Model Forums > RX Models > RX - Third Generation
Sign in using an external account
Register Forgot Password?

Check AWD System/Hard Downshifting

Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 09-09-14, 06:58 AM   #1
hp2389
Driver School Candidate
Trader Score: (0)
 
hp2389's Avatar
 
Join Date: Sep 2014
Location: Colorado
Posts: 3
Default Check AWD System/Hard Downshifting

So I just purchased my new-to-me, CPO 2010 RX 350 two weeks ago. It had 81,750 miles when I purchased it, and it now has about 83,000 miles. I just came back from a weekend vacation, having driving about 500 miles total. This morning when I turned on the car, I noticed a message saying "Check AWD System," the check engine light was on, the general warning light was on, and the traction control light was on. As I was driving, I realized that the car wasn't downshifting properly. I didn't drive faster than 40 mph on my morning commute. When the car did downshift, it was a hard, jerky shift.

I did some reading on the forum, and many people suggested all the warning lights could be fixed by taking off and retightening the gas cap (due to the vehicle not reading the emissions properly or something?). I also read that topping off and overfilling the gas tank can be cause for the warning lights to go on. I did fill up once on my way home from my vacation, and haven't filled up since.

Anyways, I just now tried to adjust the gas cap and then restart the car, but the warning lights are still on. Any suggestions as to what I should do or if I should drive it a bit to let the emissions build up again? My problem is is that I live about 6 hours from a Lexus dealership, so I'm trying to figure out if I can resolve this on my own or what I should tell a mechanic specifically if I need to take it in.

Thank you for the assistance!
This ad is not displayed to registered members.
Register your free account today and become a member on Club Lexus!
hp2389 is offline   Reply With Quote
Old 09-09-14, 07:13 AM   #2
vlad_a
Lexus Test Driver
Trader Score: (0)
 
Join Date: Feb 2004
Location: Ohio
Posts: 883
Default

One thing you can try is to disconnect the battery for 15 min to see if it clears the code. Paying extra for a CPO may not have been the best idea, considering closest Lexus dealer is 6 hours away.
__________________
2013 NGP RX450h
FS: 2003 GGP IS300 Manual
On order: 2015 WRX STI
vlad_a is offline   Reply With Quote
Old 09-09-14, 07:20 AM   #3
oohpapi44
Lexus Fanatic
Trader Score: (1)
 
oohpapi44's Avatar
 
Join Date: Jul 2005
Location: SouthSide Qns
Posts: 5,821
Send a message via AIM to oohpapi44 Send a message via MSN to oohpapi44 Send a message via Yahoo to oohpapi44
Default

If the lights are on and you have CPO coverage, take it to the dealer Can you take to a Toyota dealership? Doesn't make sense to clear the lights if car isn't acting normal.

Agree that CPO isn't helpful if it takes 6 hours to get help.
__________________
Gracie's Page

2001 - GS430, modded a lil bit
2011 - RX450h
oohpapi44 is offline   Reply With Quote
Old 09-09-14, 07:24 AM   #4
lexus114
Lexus Champion
Trader Score: (0)
 
lexus114's Avatar
 
Join Date: Aug 2007
Location: Bethlehem Twsp. Pennsylvania
Posts: 3,944
Default

need to get the codes in the ecm read, start from there
__________________
2015 RX 350 AWD

2012 Mercedes-Benz C300 4 Matic Sport Sedan (wife`s car)
lexus114 is offline   Reply With Quote
Old 09-09-14, 07:30 AM   #5
oohpapi44
Lexus Fanatic
Trader Score: (1)
 
oohpapi44's Avatar
 
Join Date: Jul 2005
Location: SouthSide Qns
Posts: 5,821
Send a message via AIM to oohpapi44 Send a message via MSN to oohpapi44 Send a message via Yahoo to oohpapi44
Default

+1

Yes, I meant to say that as well. First stop is to hit an Autozone and have them pull your code for you. Will tell you exactly what the problem and how serious it may or may not be.
__________________
Gracie's Page

2001 - GS430, modded a lil bit
2011 - RX450h
oohpapi44 is offline   Reply With Quote
Old 09-09-14, 08:21 AM   #6
felix168
Rookie
Trader Score: (0)
 
Join Date: Oct 2013
Location: CA
Posts: 62
Default

Quote:
Originally Posted by hp2389 View Post
So I just purchased my new-to-me, CPO 2010 RX 350 two weeks ago. It had 81,750 miles when I purchased it, and it now has about 83,000 miles. I just came back from a weekend vacation, having driving about 500 miles total. This morning when I turned on the car, I noticed a message saying "Check AWD System," the check engine light was on, the general warning light was on, and the traction control light was on. As I was driving, I realized that the car wasn't downshifting properly. I didn't drive faster than 40 mph on my morning commute. When the car did downshift, it was a hard, jerky shift.

I did some reading on the forum, and many people suggested all the warning lights could be fixed by taking off and retightening the gas cap (due to the vehicle not reading the emissions properly or something?). I also read that topping off and overfilling the gas tank can be cause for the warning lights to go on. I did fill up once on my way home from my vacation, and haven't filled up since.

Anyways, I just now tried to adjust the gas cap and then restart the car, but the warning lights are still on. Any suggestions as to what I should do or if I should drive it a bit to let the emissions build up again? My problem is is that I live about 6 hours from a Lexus dealership, so I'm trying to figure out if I can resolve this on my own or what I should tell a mechanic specifically if I need to take it in.

Thank you for the assistance!
The "check AWD system" warning is different from the check engine light. Your engine is in limp mode therefore it won't shift and to the car from being driven to avoid further damage. CPO? I'd suggest have it towed to the dealer since you have free towing and it doesn't matter if you're 6 hours away from the dealership.
felix168 is offline   Reply With Quote
Old 09-09-14, 11:14 AM   #7
Tom558
Pole Position
Trader Score: (0)
 
Tom558's Avatar
 
Join Date: Oct 2013
Location: Napa, CA
Posts: 230
Default

Call the dealer, describe the symptoms and service lights and see what they recommend. Ask if you can take the RX to a nearby Toyota dealer for diagnostics and/or repair or do they want it towed to them. They may come and get it themselves and bring a loaner for you to use.

Getting the dealer involved early in warranty related problems helps in getting a satisfactory resolution.
__________________
Hers = 2014 / 9424A RX 350 5-DR SUV ~ AWD ~ Silver Lining Met ~ Comfort Pkg, Premium Audio Pkg, Navigation System, Parking Assist, Premium Pkg, Towing Prep Pkg, Wood and Leather Trim, Cross Bars

Mine = 2012 Kia Sportage ~ Pretty Basic
Tom558 is offline   Reply With Quote
Old 09-09-14, 11:25 AM   #8
Clutchless
Driver
Trader Score: (0)
 
Join Date: May 2005
Location: VA
Posts: 191
Default

Let us know what happens! And don't drive it anymore until it is repaired! You do not want to be responsible for creating more damage.
Clutchless is offline   Reply With Quote
Old 09-11-14, 02:59 PM   #9
PETERPHAN8
Driver School Candidate
Trader Score: (0)
 
Join Date: Jun 2013
Location: wa
Posts: 12
Default

you need to replace a transmission oil filter. It located inside the transmission oild pan. the part called a tranikit. My old ES was acting like that at 150,000 miles. you can buy it at autozone for $25 and DIY.
PETERPHAN8 is offline   Reply With Quote
Old 09-13-14, 07:29 PM   #10
hp2389
Driver School Candidate
Trader Score: (0)
 
hp2389's Avatar
 
Join Date: Sep 2014
Location: Colorado
Posts: 3
Default

Ok everyone, thank you all for your great advice and suggestions! I called the dealer and the service manager suggested I take it to a shop and have them first check to see if my battery was bad, since that could apparently have an affect on all the systems. So I took it to a Mom-and-Pop auto place to have them check the batter. The battery had never been changed, and was therefore bad, so I did have them install a new one. Unfortunately, it did not resolve any of the issues like the dealership had hoped it would do. Thus, I decided to have it towed to the Toyota dealership an hour away.

Aside from a terribly delayed towing experience, my car is now in the shop and was diagnosed with rodent damage to a few key wires. Mind you, I do live in a rural part of Southwestern Colorado, and so I suppose I should expect rodent issues. However, in all the decades my family has lived out there, we've never had an issue with rodents damaging our cars. I suppose in the end, it was just bad luck. The latest update is that my car should be finished in a few days, as long as the parts arrive on time and that the insurance approves the rodent damage. I have now been researching ways to repel rodents, and will probably go with the idea of parking the car over a tray of mothballs.

Definitely a bummer situation, but I suppose it could have been much worse.Thanks again, everyone, for your help!
hp2389 is offline   Reply With Quote
Old 09-13-14, 11:03 PM   #11
raylor4
Pole Position
Trader Score: (0)
 
raylor4's Avatar
 
Join Date: Oct 2013
Location: Lincon, CA
Posts: 355
Default

I wonder if the rodent damage was missed by the people that did the 161 point CPO inspection. Hopefully, you can get someone to authenticate the age of the rodent damage. Like they do on CSI. Seriously, your CPO warranty could possibly cover this if it's proven they sold you the car this way.
__________________
'11 RX350 Matador Red, FWD, Luxury, Premium, Bling Mod
'04 V6 Highlander, AWD, Refrigerator White
'64 283 Chevy Impala Convertible, my first car, gone.
'34 Ford Woodie, wish I had it back.

Last edited by raylor4; 09-13-14 at 11:04 PM.. Reason: spelling
raylor4 is offline   Reply With Quote
Old 09-13-14, 11:03 PM
 
 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Check Engine, Check VSC and Master Warning light jcm505 ES350 (2007 - 2012) 9 03-01-14 12:44 PM
Seems like "Every" odometer lights came on ChanIS250 IS - Second Generation 2 12-18-13 01:24 PM
"Check VSC" warning??? LarryF GS - Third Generation 17 10-22-13 05:57 PM
New ES350 - Check Engine Light on? edh ES350 and ES300h (2013+) 22 10-07-13 04:30 PM
replaced Loose/bad gas cap, CEL and VSC misfires.. now sulfur smell.. HELP! execlex LS400 9 11-17-12 07:05 PM

All times are GMT -7. The time now is 11:50 AM.

Join ClubLexus
Advertising


Copyright © 2000-2008 Internet Brands, Inc. All Rights Reserved
Privacy Policy | Disclaimer | Terms of Use | JOBS


Get all contact info