Heater will not blow hot air. It will only blow cold air even when the temperature is turned to high heat

Asked by Sep 17, 2013 at 01:46 PM about the 2003 Lexus RX 300 Base AWD

Question type: Maintenance & Repair

3 Answers

125

You may need a new thermostat and/or heater core.

8 of 8 people found this helpful.
3,755

I presume the repair has been made. I helped a co-worker with her 99, same symptoms. This has an elaborate climate system, accessed behind the glove box. Allow several hours, and at least $160 for the new air mix servo, the likely culprit. There are 2 others, the mode servo (floor/vent/defrost/mix), and recirc servo, less likely, since heat is the issue here. here is a forum link, a little googling will show the process. http://us.lexusownersclub.com/forums/topic/71031-no-cabin-heat-2000-rx300/ The Lexus dealer charges $500 and up to fix this.

6 of 6 people found this helpful.
10

Your Answer:

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

RX 300

Looking for a Used RX 300 in your area?

CarGurus has 805 nationwide RX 300 listings starting at $2,995.

ZIP:

Search Lexus RX 300 Questions

Lexus RX 300 Experts

#1 Rx300_21001
Rx300_21001
Reputation 1,870
#2 John Orlando
John Orlando
Reputation 990
#3 mrsvirtuous
mrsvirtuous
Reputation 680
View All

Related Models For Sale

Used Lexus RX 330
56 Great Deals out of 1,441 listings starting at $3,750
Used Toyota Highlander
389 Great Deals out of 26,423 listings starting at $2,500
Used Honda CR-V
1,029 Great Deals out of 57,426 listings starting at $1,000
Used Toyota RAV4
886 Great Deals out of 64,801 listings starting at $1,990
Used Toyota Camry
1,225 Great Deals out of 85,031 listings starting at $750
Used Toyota 4Runner
239 Great Deals out of 19,389 listings starting at $1,500
Used Acura MDX
305 Great Deals out of 17,807 listings starting at $1,900
Used Lexus LX 470
8 Great Deals out of 276 listings starting at $5,900
Used Lexus ES 300
22 Great Deals out of 918 listings starting at $1,495
Used Nissan Murano
412 Great Deals out of 25,357 listings starting at $1,499
Used BMW X5
483 Great Deals out of 15,030 listings starting at $1,499

Used Cars For Sale

2003 Lexus RX 300 Base AWD For Sale
70 listings starting at $2,995
2002 Lexus RX 300 Base AWD For Sale
3 Great Deals out of 144 listings starting at $2,999
2001 Lexus RX 300 Base AWD For Sale
3 Great Deals out of 101 listings starting at $3,000

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.