How to Reset the Tire Pressure Warning System on a 2007 Lexus RX350
by Justin CuplerLexus released the RX-series of SUVs in the 1999 model year, with the launch of the RX300. As the engine size increased in the RX, the name changed as well. In 2004, a 3.3-liter engine replaced the 3.0-liter, and Lexus changed the name to the RX330. In 2007, the 3.5-liter V-6 replaced the 3.3-liter, and the name changed to RX350. The 2007 RX350 came standard with a direct tire-pressure-monitoring system, which had a pressure sensor mounted in each tire. When the pressure drops in one tire a light illuminates on the dashboard to alert the driver. Anytime you perform a tire rotation or replace the TPMS computer, you must reset the TPMS system.
Step 1
Set all four tires to 30 psi, as recommended by the manufacturer, using compressed air with a tire inflation attachment.
Step 2
Engage the RX350's parking brake. Insert the key in the ignition and turn it to the "On" position, but don't start the vehicle.
Step 3
Press and hold the tire-pressure-monitoring system reset button --- a small, black button under the dashboard, to the right of the steering column --- until the tire pressure warning light blinks three times, each blink lasting 1 second.
Step 4
Leave the ignition in the "On" position while the system initializes, which typically takes several minutes. Turn the ignition "Off" when the TPMS warning light extinguishes.
References
- Lexus: 2007 Lexus RX350 Owner's Manual (See pg. 396 for tire pressure)
- Lexus: 2007 Lexus RX350 Owner's Manual (See pg. 306 for reset/initialization procedure)
- "Mitchell1 OnDemand 5"; 2007 Lexus RX350 TPMS Reset/Initialization Procedure; The Mitchel Repair Information Company
- MSN Autos: Lexus RX Overview
Things You'll Need
- Compressed air source with tire inflation attachment
- Ignition key
Writer Bio
Justin Cupler is a professional writer who has been published on several websites including CarsDirect and Autos.com. Cupler has worked in the professional automotive repair field as a technician and a manager since 2000. He has a certificate in broadcast journalism from the Connecticut School of Broadcasting. Cupler is currently studying mechanical engineering at Saint Petersburg College.
