Mazdaseller 2nd Gear May 22, 2023 Share May 22, 2023 (edited) Those who own Lexus of the following models IS, GS and RC from years 2013-2017 take note of the potential servo motor issue of the Air-Con. Basically, if you adjust the temperature to "HI" and/or turn on the windscreen or window heater and then subsequently turn it down to cooling temperature, there is a potential that the driver's side blower might still be blowing hot air due to the servo motor electrical malfunction. Most of us do not turn the temperature to high, hence, will never encounter this issue till you change coolant, do AC maintenance or accidentally changed the temperature to high, so won't encounter this till years after purchase. However, Lexus is conducting recall and repair for free for U.S and Canada markets at least as they encounter this issue when winter hits. Just U.S alone, they are recalling over 300k vehicles of the various models to repair for free, even beyond the basic warranty period, up to 7 years. So, if your vehicle is under warranty, please check whether you have this issue and get if fixed, or if you are looking to purchase a used Lexus of the various affected models, can also check for the malfunction. Local dealer in SG will not repair for you FOC if warranty has lapsed, and the most they will do is "reset" for you and the problem will eventually recur. I attach the links of the recall announced by U.S. NHTSA. The steps to replicate the issue varies as there are up to 8 servo motors, but mainly, adjust the temperature up to "Hi" and/or turn on the window/windscreen heater for awhile and then bring down to "Lo" or 20 deg or lower and check whether there is uneven AC temperature, especially on driver side. All the info can be found from the pdfs from the links. https://static.nhtsa.gov/odi/tsbs/2021/MC-10188921-9999.pdf https://static.nhtsa.gov/odi/tsbs/2021/MC-10204550-9999.pdf Edited May 22, 2023 by Mazdaseller ↡ Advertisement 2 Link to post Share on other sites More sharing options...
Thaiyotakamli Supersonic May 22, 2023 Share May 22, 2023 My harrier last time also blow hot air i believe same issue 1 Link to post Share on other sites More sharing options...
Mazdaseller 2nd Gear May 22, 2023 Author Share May 22, 2023 (edited) On 5/22/2023 at 7:56 PM, Thaiyotakamli said: My harrier last time also blow hot air i believe same issue How much did it cost to fix it? Also driver side? Edited May 22, 2023 by Mazdaseller Link to post Share on other sites More sharing options...
Thaiyotakamli Supersonic May 22, 2023 Share May 22, 2023 On 5/22/2023 at 10:25 PM, Mazdaseller said: How much did it cost to fix it? Also driver side? That time i sent in to PI workshop for warranty claim they only reset in the end sold the car lol Link to post Share on other sites More sharing options...
t0y0ta Supercharged May 23, 2023 Share May 23, 2023 Its a pretty small issue - I encountered before on FWD model also. Just change out the servo lor Link to post Share on other sites More sharing options...
Toeknee_33 Turbocharged May 23, 2023 Share May 23, 2023 Had the same issue. Reset the servo motors FOC. Link to post Share on other sites More sharing options...
Mkl22 Twincharged May 23, 2023 Share May 23, 2023 On 5/23/2023 at 9:41 AM, t0y0ta said: Its a pretty small issue - I encountered before on FWD model also. Just change out the servo lor But whole dash out to change right? Not so trival Link to post Share on other sites More sharing options...
Mazdaseller 2nd Gear May 23, 2023 Author Share May 23, 2023 On 5/23/2023 at 7:38 PM, Mkl22 said: But whole dash out to change right? Not so trival Some say no need, others say need to take out whole dash... I guess it depends on which servo motor spoilt and depending on which vehicle model. For mine, was told that two servo motors needed replacing and whole dash needed to be taken out. For those who still have warranty, just go and have it replaced, otherwise, the cheaper route would be to keep resetting it when this occur, annoying, but cheapest way. I heard of a guy who reset three times already, his case is quite bad and another replaced all eight servo motors for 2k+ and no more problems.☹️ Link to post Share on other sites More sharing options...
Airy 1st Gear June 16, 2023 Share June 16, 2023 Hi, May I know which workshop(s) specialize in servicing Lexus? Looking for alternatives beside Borneo Motors. Thanks. Link to post Share on other sites More sharing options...
thermos 1st Gear June 16, 2023 Share June 16, 2023 Have a IS200T new from BM. I had it reset 5 TIMES by BM and I was not even aware of the soft reset done by BM until now.Each time problem arise sent it to BM and end of the day collected the car, check it OK, problem solved, happy, unaware they just reset it. All this time the car was still warranty. The SA claimed it has been repaired and and not as you described. Now warranty over I llst. This my second unit and will be last from them Link to post Share on other sites More sharing options...
t0y0ta Supercharged June 16, 2023 Share June 16, 2023 On 6/16/2023 at 4:28 PM, thermos said: Have a IS200T new from BM. I had it reset 5 TIMES by BM and I was not even aware of the soft reset done by BM until now.Each time problem arise sent it to BM and end of the day collected the car, check it OK, problem solved, happy, unaware they just reset it. All this time the car was still warranty. The SA claimed it has been repaired and and not as you described. Now warranty over I llst. This my second unit and will be last from them You can continue to reset it instead of replacing servo lor Link to post Share on other sites More sharing options...
thermos 1st Gear June 16, 2023 Share June 16, 2023 On 6/16/2023 at 4:51 PM, t0y0ta said: You can continue to reset it instead of replacing servo lor Thanks for your help. Will continue until the next problem comes up. Link to post Share on other sites More sharing options...
Mazdaseller 2nd Gear June 16, 2023 Author Share June 16, 2023 (edited) @thermos Now out of warranty, will BM charge a fee to reset? Edited June 16, 2023 by Mazdaseller Link to post Share on other sites More sharing options...
thermos 1st Gear June 17, 2023 Share June 17, 2023 On 6/16/2023 at 9:06 PM, Mazdaseller said: @thermos Now out of warranty, will BM charge a fee to reset? No Idea, but it is not an issue. Have another free servicing to go and this car done only 28000 km Link to post Share on other sites More sharing options...
Mazdaseller 2nd Gear June 19, 2023 Author Share June 19, 2023 Those looking to do a reset for their AC, there's a guy on carousell who can do it, just do a search lexus servo motor. ↡ Advertisement Link to post Share on other sites More sharing options...
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