r/CarHacking is a subreddit with 48k members. The community frequently discusses can bus, can, obd, obd2, and ecu, and they frequently recommend/review oscilloscope, scanner, and obd2 scanner, and the most common flair used is original project , scan tool, cool project find, can, and community.
Car Hacking - The ECU and protocols like CANbus have become the heart and brain of most modern cars, but it has also become a locked down black box. This is a place for people interested in taking back control of the car they bought. New age hot rodders, ECOmodders, Security researchers, the curious, the paranoid, and the tinkerers are all welcome. We encourage the use of open source solutions and tools like arduino and rasberry pi.
Popular Topics in r/CarHacking
#1
Can Bus
35 posts
#2
Can
16 posts
#3
Obd
8 posts
#4
Obd2
7 posts
#5
Ecu
6 posts
#6
Infotainment
4 posts
#7
Esp32
4 posts
#8
Ford
4 posts
#9
Xentry
4 posts
#10
Coding
3 posts
Products Discussed in r/CarHacking
Oscilloscope
3 reviews
#1
FNIRSI 1013D
4.0★ from 1 review
#2
Hantek
4.0★ from 1 review
#3
Siglent SDS1000X-E
5.0★ from 1 review
Scanner
2 reviews
#1
Tactrix
4.0★ from 1 review
#2
OBDLink
4.0★ from 1 review
Obd2 Scanner
2 reviews
#1
Tactrix
4.0★ from 1 review
#2
OBDLink
4.0★ from 1 review
Flair Used in r/CarHacking
#1
Original Project
: "MMI BOX Reverse engineering & custom firmware."
47 posts
#2
Scan Tool
: "I have VAS 6154 interface and 2025 VW Transporter T7 with used ABS module needing online parametrization. Looking for remote tech with GEKO access to connect to my laptop. Car won't start — brake module has Ford firmware, needs VW reflash."
21 posts
#3
Cool Project Find
: "MOPAR COMPUTER ISSUES EXPLAINED"
18 posts
#4
CAN
: "LispBM CAN message send in VESC"
17 posts
#5
Community
: "Developer password"
15 posts
#6
Key Fob
: "Question: Programing a 2008 Mazda 2 Carkey"
5 posts
#7
Multiple
: "Approaches for bypassing/interfacing with OEM Security Gateways (SGW & VAG SFD2) for telemetry"
4 posts
#8
Tuning
: "KTAG support for Bosch MSE2"
4 posts
#9
ELM327
: "Toyota 2011 TPMS over ELM327"
3 posts
#10
LIN
: "Ford focus MK3 headlight switch LIN bus"
2 posts
Member Growth in r/CarHacking
Yearly
+14k members(42.1%)
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Last updated: August 29, 2026