TX500h: Transmission up shift problem??
Hi,
I have a 2026 Lexus TX500h with around 2300 miles now. I've been been noticing when I drive the vehicle it would give a "thump" with bad jerkiness intermittently. I have brought it to the local dealer where I purchased the vehicle and a technician acknowledged the issue during the test drive. But the Lexus dealer then said they can't reproduce it. I went back to the dealer and wasn't able to reproduce the issue in front of Lead technician.
So I drove the vehicle and observed similar behavior.
The local Lexus claimed they have Lexus doesn't have a TSB to fix the issue yet.
Anyone else encounter this issue or I have a special issue?
Thanks
I have a 2026 Lexus TX500h with around 2300 miles now. I've been been noticing when I drive the vehicle it would give a "thump" with bad jerkiness intermittently. I have brought it to the local dealer where I purchased the vehicle and a technician acknowledged the issue during the test drive. But the Lexus dealer then said they can't reproduce it. I went back to the dealer and wasn't able to reproduce the issue in front of Lead technician.
So I drove the vehicle and observed similar behavior.
The local Lexus claimed they have Lexus doesn't have a TSB to fix the issue yet.
Anyone else encounter this issue or I have a special issue?
Thanks
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redtoesblue
RX - 1st Gen (1999-2003)
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Mar 16, 2010 08:06 PM







