My car is a v6 awd with 144K miles. I was driving and all of the lights on the dashboard lit up like a Christmas tree and the car didn’t want to accelerate until I floored it then it slam the lower gear.cruising at light throttle is when you can feel like the car is stuck at 20 even when flooring it.No check engine light or codes. I’ve read that it could be the battery so I changed the battery and still the same symptoms? My question for you guys is there a pedal position sensor on the tlx? Has anyone experience this? Sorry if this was discussed before. I did search but only found third generation tl discussions.

 

Yes there is a pedal positioning sensor. It is located right underneath the pedal pad.

 

Better get that checked out soon. Sounds like you went into limp mode - it was that serious. A bad battery shouldn't cause a slam-in-lower gear situation. All recalls performed and what is the transmission service history?

 

There’s a recall on the transmission?

 

TSB 14-050 - Safety Recall: Transmission Does Not Engage Park
Applies To: 2015 TLX - ALL - Check the iN VIN status for eligibility
http://www.urvi.net/forumfiles/SB/B14-050.PDF
http://techinfo.honda.com/rjanisis/p...nu/B14-050.PDF

TSB 15-034 - Product Update: Vehicle Shifts into Neutral and MIL Comes On with DTC P0657
Applies To: 2015 TLX - With 9-speed A/T - Check the iN VIN status for eligibility
http://www.urvi.net/forumfiles/SB/B15-034.PDF
http://techinfo.honda.com/rjanisis/p...nu/B15-034.PDF

TSB 15-039 - Transmission End Cover Leaks (9-Speed A/T)
Applies To: 2015-18 TLX - ALL with 9-speed A/T - ALL
2019 TLX AWD - 9-speed A/T - From VIN 19UUB3F..KA000002 thru19UUB3F..KA002947
2019 TLX 2WD - 9-speed A/T - From VIN 19UUB2F..KA000001 thru 19UUB2F..KA003475
http://www.urvi.net/forumfiles/SB/B15-039.PDF
http://techinfo.honda.com/rjanisis/p...nu/B15-039.PDF

TSB 15-040 - Firm 2nd to 3rd Gear Upshifts Under Certain Driving Conditions
Applies To: 2015 TLX - V6 2WD - From VIN 19UUB2...FA000001 to 19UUB2...FA021489
2015 TLX - V6 SH-AWD - From VIN 19UUB3...FA000001 to 19UUB3...FA007728
http://www.urvi.net/forumfiles/SB/B15-040.PDF
http://techinfo.honda.com/rjanisis/p...nu/B15-040.PDF

TSB 15-041 - Multiple Indicator Lights Come On, Stuck in 4th Gear, and Temporary DTC P0714 is Set
Applies To: 2015 TLX - V6 with 9-speed A/T - ALL
http://www.urvi.net/forumfiles/SB/B15-041.PDF
http://techinfo.honda.com/rjanisis/p...nu/B15-041.PDF

TSB 16-075 - Safety Recall: 2015 TLX V6 A/T Sensor Cluster Crimp Failure
Applies To: 2015 TLX - V6 with A/T - Check the iN VIN status for eligibility
http://www.urvi.net/forumfiles/SB/B16-075.PDF
http://techinfo.honda.com/rjanisis/p...nu/B16-075.PDF

TSB 17-011 - Product Update: TLX 9-Speed Transmission Warmer
Applies To: 2015-16 TLX - All with 9-speed A/T - Check the iN VIN status for eligibility
http://www.urvi.net/forumfiles/SB/B17-011.PDF
http://techinfo.honda.com/rjanisis/p...nu/B17-011.PDF

TSB 17-012 - Product Update: TLX 9-Speed Transmission Warmer (Transmission Previously Replaced for Transmission Warmer Leaking)
Applies To: 2015-16 TLX - All with 9-speed A/T - Check the iN VIN status for eligibility
http://www.urvi.net/forumfiles/SB/B17-012.PDF
http://techinfo.honda.com/rjanisis/p...nu/B17-012.PDF

TSB 17-027 - Warranty Extension: TLX Transmission Chirps During 3-4 Shift, Poor Shift Quality, or Engine Overheats Because of Defective ATF Warmer
Applies To: 2015-16 TLX - All with 9-speed A/T - Check the iN VIN status for eligibility
http://www.urvi.net/forumfiles/SB/B17-027.PDF
http://techinfo.honda.com/rjanisis/p...nu/B17-027.PDF

TSB 19-003 - MIL Comes On with DTC P0716
Applies To: 2015 TLX - V6 2WD with 9-Speed A/T - From VIN 19UUB2...FA021489 and later
2015 TLX - V6 AWD with 9-Speed A/T - From VIN 19UUB3...FA007728 and later
2016-17 TLX - V6 with 9-Speed A/T - ALL
2018 TLX - V6 2WD with 9-Speed A/T - From VIN 19UUB2...JA000001 thru 19UUB2...JA011767
2018 TLX - V6 AWD with 9-Speed A/T - From VIN 19UUB3...JA000001 thru 19UUB3...JA005470
http://www.urvi.net/forumfiles/SB/B19-003.PDF
http://techinfo.honda.com/rjanisis/p...nu/B19-003.PDF

TSB 20-015 - 9-Speed A/T Hard Upshift with Steady Acceleration
Applies To: 2015 TLX - 2WD V6 9-Speed A/T - Transmission serial number above Q5J...60408
2015 TLX - AWD V6 9-Speed A/T - Transmission serial number above Q5L...25932
2016-20 TLX - 2WD V6 9-Speed A/T - ALL
2016-20 TLX - AWD V6 9-Speed A/T - ALL
http://www.urvi.net/forumfiles/SB/B20-015.PDF
http://techinfo.honda.com/rjanisis/p...nu/B20-015.PDF

There are also fuel pump and rod bearing recalls on the 2015 as well. First year model grief...

 

Quick update: so the symptoms disappeared after I switched over the battery (knock on wood). Thanks y’all for your advice.