Auto Stop/Start
Thread Starter
Lexus Test Driver
Joined: Jul 2017
Posts: 9,659
Likes: 3,438
From: NJ
Auto Stop/Start
Doex the 2017 RX have this meaning when you come to a full stop with foot remaining on brake, the engine shuts down until your foot comes off the brake? I rented a car a month ago with this technology and hated it.
Driver
Joined: May 2017
Posts: 146
Likes: 0
From: CA
Driver School Candidate
Joined: Jul 2017
Posts: 14
Likes: 0
From: PA
The lack of start-stop was one reason I did not get RX350 but got the RX450h. Most German cars built today have Auto Start-stop (user can disable) so really disappointed in Lexus. In congested urban areas, enabling it can cut down on unnecessary pollution and save on gas. THe AC may stop but the fan keeps going, and one still gets cool air if the stops are relatively short- like 2 minutes at a traffic light. One will not notice loss of AC in most cases. And then there are drive thrus at the banks, fast food places, etc. etc. where the Start-stop can really help.
Trending Topics
Lexus Test Driver
Joined: Oct 2014
Posts: 1,266
Likes: 48
From: NY / LI
I have the start/stop in the Q7 and cannot get used to it so I simply turn it off. I'm very happy Audi put the on/off button right on the dash so no menus to go through. But the few times I have used it I noticed that on hot days if the a/c is in manual mode the start/stop will not engage. However, if the a/c is in auto and the cabin temp has been reached the start/stop will turn the engine off.
ClubLexus Stories
Celebrating Lexus & Toyota from Around the Globe
Lexus NX 350h: A Fuel-Sipping Secret Hot Hatch???
Michael S. Palmer
5 Best & 5 Worst Lexus Daily Drivers
Joe Kucinski
Top 5 Hottest Lexus & Toyotas in 2026 (Hardest To Buy)
Brett Foote
2026 Lexus IS 350 F Sport Review: The Last of Its Kind Still Rocks
Michael S. Palmer
Top 10 Most Confusing Things Lexus Has Ever Done!
Joe Kucinski
2026 Lexus ES Review: Lexus Re-Embraces Founding Principles
Michael S. Palmer
10 Lexus Bargains That are Cheaper Than a New Toyota RAV4
Joe Kucinski
8 Weirdest Things Lexus Has Ever Built
Verdad Gallardo
10 Lexus Designs That Have Aged Like Fine Wine
Verdad Gallardo
Pole Position
Joined: Jan 2005
Posts: 3,314
Likes: 542
From: Florida
I would not like it either until I drove the 450h.
There is little to not like as the whole system takes care of itself.
The AC and everything else work perfectly even with the engine off.
What do you not like about the 450h system.
There is little to not like as the whole system takes care of itself.
The AC and everything else work perfectly even with the engine off.
What do you not like about the 450h system.
Advanced
Joined: Apr 2017
Posts: 613
Likes: 86
From: Quebec, Canada
I went in an hybrid ES. Fully electric when lover than 20 Mph and then the engine starts seamlessly when moving at higher speed.
The transition is very smooth.
So does the RX450h does the same?
The transition is very smooth.
So does the RX450h does the same?
Pole Position
Joined: Jan 2005
Posts: 3,314
Likes: 542
From: Florida
What mileage are you getting with the ES?
Advanced
Joined: Apr 2017
Posts: 613
Likes: 86
From: Quebec, Canada
Intermediate
Joined: Oct 2016
Posts: 442
Likes: 129
From: Texas
The 450h will run under battery while there is more than 2 bars of battery charge, under 42-43 MPH, and slight acceleration. The dash and HUD will show a bar with a tick mark to indicate when the system power will start the engine under acceleration. If accelerate hard, then engine starts. You can drive about 2 miles under battery.