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 out of 8 people think this is helpful.
3,595

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 out of 6 people think this is helpful.
10

Your Answer:

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

RX 300

Looking for a Used RX 300 in your area?

CarGurus has 849 nationwide RX 300 listings starting at $2,500.

ZIP:

Search Lexus RX 300 Questions

Lexus RX 300 Experts

#1 Rx300_21001
Rx300_21001
Reputation 1,790
#2 John Orlando
John Orlando
Reputation 930
#3 mrsvirtuous
mrsvirtuous
Reputation 640
View All

Related Models For Sale

Used Lexus RX 330
35 Great Deals out of 1,530 listings starting at $4,351
Used Toyota Highlander
381 Great Deals out of 24,628 listings starting at $2,987
Used Toyota Camry
878 Great Deals out of 91,817 listings starting at $1,300
Used Acura MDX
248 Great Deals out of 17,738 listings starting at $1,495
Used Honda CR-V
690 Great Deals out of 57,016 listings starting at $1,600
Used Lexus ES 300
8 Great Deals out of 965 listings starting at $1,995
Used Toyota RAV4
580 Great Deals out of 66,164 listings starting at $999
Used Toyota 4Runner
291 Great Deals out of 20,624 listings starting at $1,850
Used Lexus GS 300
26 Great Deals out of 788 listings starting at $2,995
Used Honda Accord
717 Great Deals out of 82,610 listings starting at $500
Used Honda Pilot
381 Great Deals out of 20,654 listings starting at $2,199

Used Cars For Sale

2003 Lexus RX 300 Base AWD For Sale
71 listings starting at $3,600
2002 Lexus RX 300 Base AWD For Sale
3 Great Deals out of 136 listings starting at $3,499
2001 Lexus RX 300 Base AWD For Sale
4 Great Deals out of 131 listings starting at $2,500
2000 Lexus RX 300 Base AWD For Sale
3 Great Deals out of 138 listings starting at $2,595