Which cars report code U0198?

Code U0198 is named in 3 US owner complaints. Models: 3, model years 2020–2025. Chevrolet Suburban, Ford Escape Hybrid, Mazda Mazda3.

U0198 code: Lost Communication With Telematic Control Module

Q: What does code U0198 mean?

Lost Communication With Telematic Control Module. How to read U0198: the letter U means network communication between modules; the second digit 0 marks a generic SAE code shared by all makes; the last three characters 198 identify the specific fault.

Code U0198 is named in 3 US owner complaints. Models: 3, model years 2020–2025.

What the code means

Lost Communication With Telematic Control Module. Generic meaning per SAE J2012 (the same for all makes).

How to read U0198: the letter U means network communication between modules; the second digit 0 marks a generic SAE code shared by all makes; the last three characters 198 identify the specific fault.

Codes for body, door, climate, instrument cluster and infotainment modules. On a damaged car they often point to wiring or a connector damaged in the impact zone, or to water inside.

Key figures

Complaints with this code: 3
Models: 3
Model years: 2020–2025

Which models and years

Models whose owners name this code (3). Years link to the model year problems page.

Model	Years	Complaints
Chevrolet Suburban	2022	1
Ford Escape Hybrid	2020	1
Mazda Mazda3	2025	1

Components named together with the code

Component as the owner filed it (one complaint can list several).

Electrical system 2
Powertrain 1
Structure 1
Other 1

Complaints by model year

2020 1
2022 1
2025 1

What to do if an auction car has this code

Check wiring and connectors in the impact zone and signs of water inside.

What owners report

Excerpts of owner complaints in the original wording. Owner statements not verified by the regulator; personal data removed.

My car started displaying a telematic malfunction. The service paperwork also says U0198:00-03 CMU Communication error with emergency call unit. [dealer] dealerships maintenance department says this is currently unrepairable.
Mazda Mazda3 2025 · 2026-09
A dealer diagnostic scan on 03/09/2026 at 67,839 miles documented the following active and history codes: U0198 Lost Communication with Telematics Module, reported independently by the Radio, Body Control Module, and Instrument Panel Cluster Control Module; U0499 Invalid Data Received from Telematics Module, reported…
Chevrolet Suburban 2022 · 2026-08
Service team had vehicle 5 days. Cleared codes U0131, U0100, U0140, U0155, U0198, U0253, U0257, P0919, U0212, U023A, U0103, U0111, U0121, U013F, U0159, U0232, U0233, U0293, U0401, U0415, U0420, U0424, U0531, U0101, U0418, U0429, U0146. 4 mile test drive. 20 mile drive returned vehicle with no cause or correction.
Ford Escape Hybrid 2020 · 2020-06

Related codes

Sources: public official US data (owner complaints) and the SAE J2012 standard. Complaints are owner statements not verified by the regulator. A code from a complaint does not replace a scan tool diagnosis. Data updated 2026-11-10.