CXA Technical Questions/Issues Raised
| Gate | cKA | Area | Topic | Pain Point/Issues | = Update/Solution =| DTNAContact | Status _

7/17/25 Abrenneman DTTS Checklist for Why isn’t there a checklist for One is not needed. Gen5 SCR Catalysts very rarely failasthey = Tim Hope
GENS. GENS? are more robust and can handle higher temperatures better = Steve Moss
than previous versions. If they do fail, it’s usually a known ,
issue like a valve bridge failure or a poor weld from the OD

factory. Also, most of the checks in the GHG17 upstream

checklist are already in the GENS manual with the fault codes
that usually would come with a failed catalyst like 3246/0 and
520349/14.

7/17/25 Unknown DTTS DT12 Input Shaft. §InputShaft MovementonaDT12. The input shaft check used to be a small part of the Steven Holts
transmission inspection a long time ago. It was removed = Steve Moss
years ago, likely because techs were replacing transmission
only due to this issue. Movement on the input shaft by itself
does not necessitate a transmission replacement. There
needs to be other complaints or issues found to justifythe
replacement. If the inputshaft was actually causing an issue,
you would see problems elsewhere like a shifting complaint,
metal in the fluid, damage to the K1 and K2 gears, etc.

7/17/25 Dave Weyler DTTS Improper Tow for Need a section on this. Two different sections in the transmission manual for Steven Holts

Transmission. improper towing.

Steve Moss -
Steve Holts, Justin Sutton, & Dave Weyler to Deep Dive Topic Chapter 10.4 - improper i ; Technical erate DP
dE Chapter 23.2.1 - Towing Failure - Technical Literature
pelee bh alae Chapter 10 is a new fairly new section.

© A D V 0 C AT E CXA Webinar | CX Operations | August 21, 2025
CXA Technical Questions/Issues Raised
a cs ce

7/17/25 Unknown Se Exhaust Pressure Tubes Need service and production date. | We expect the production change forthe = Tony Sleeper
Powertrain Breaking DD16 Engines. new tube assembly in early December
2025. No specific date identified. This is -
all pending the prototype lines delivered
8/18 pass verification and testing.
7/17/25 Dave SE-Chassis 49X Transmission Cooler. Customers want the option There are no plans to go back tothe metal = Brett Fisher
Weyler between metal and plastic. tubes. Engineering believes the plastic -”
tubes will work if properly installed.
7/17/25 Amy SE Chassis Rocker Panel Coming Loose. Falling off new trucks around 50- One off plant quality topic. Recommend = Loren
Hutcheson 70k miles. following the process to file complaints Keplinger 7
through DPRs.
7/17/25 Dave SE Chassis DT12 Low Lube Pressure Not setup to shutdown engine, 2/4/25: VT went live with message = Mike Donnelly
Weyler Sensor Faults only gives you a “Service Soon.” reading Service Now, original message = Steven Holts
Customers ignore it and now are read Service Soon. Starting with 2027
getting $45k bill. There needs to truck models, will have an audible buzzer oe
be a same parameter as and require manual shifting. This is the

shutdown. Field solution needed. earliest we can get the request entered
into the first available SW package, if
accepted and approved. Will not be
backward compatible.
No field solution is available.

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