# 2003 Lexus ES 300 air conditioner **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** es300, lexus\ **Created:** [June 28, 2018, 2:48am UTC](https://community.cartalk.com/t/2003-lexus-es-300-air-conditioner/119993 "2018-06-28T02:48:14Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![thomas12](https://avatars.discourse-cdn.com/v4/letter/t/4bbf92/32.png) [@thomas12](https://community.cartalk.com/u/thomas12)\ **Post date:** [June 28, 2018, 2:48am UTC](https://community.cartalk.com/t/2003-lexus-es-300-air-conditioner/119993/1 "2018-06-28T02:48:14Z")
2003 Lexus ES300 Blinking lite on AC … replaced Relay stills blinks now what? ---
**Author:** ![COROLLAGUY1](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/corollaguy1/32/7575_2.png) [@COROLLAGUY1](https://community.cartalk.com/u/COROLLAGUY1)\ **Post date:** [June 29, 2018, 3:18am UTC](https://community.cartalk.com/t/2003-lexus-es-300-air-conditioner/119993/2 "2018-06-29T03:18:36Z")
.Some people replaced the magnetic clutch relay under the hood with success others had to replace the serpentine belt because it was slipping when going over a rain puddle… A blinking a/c light is never a good sign and should be troubleshoot and fixed by a qualified a/c technician. ---
**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\ **Post date:** [June 29, 2018, 3:38am UTC](https://community.cartalk.com/t/2003-lexus-es-300-air-conditioner/119993/3 "2018-06-29T03:38:48Z")
Generally if the air conditioning compressor clutch slips the A/C amplifier with shut off the clutch and flash the A/C button light. Check the belt, make sure it is tight/not slipping. Inspect the clutch, see if it slips when another person switches on the A/C.