Enthusiastic wife here; we’re saying bye to city life and hello to suburbia and about to welcome a child. We want to use this truck to its fullest potential, what accessories do yall recommend? I wanna fix up a list. Thanks in advance!

One for the techs and parts department: are the SC tonneau covers fixable or is it just replace the whole thing? Mine will not roll up correctly. Also, if replacement is needed, what’s the timeframe on part procurement?

TIA

Who here has wrapped their Santa Cruz? Or just done partial wraps or even decals. I want to see pictures!

Has anyone gotten the new "Themes" for the gauge cluster and infotainment system to work yet? I got the update a few days ago, but there is still no menu options for themes. It does have a digital speedometer option for the center portion.

My dashboard has 6 warning lights for driver Assist and convenience features and it started after I replaced the tailgate actuator and drove it for about 45 mins.

List of things that don't work.

Key fob (the blue link app works)

Climate control

Backup camera

Lane assist

Attention warning thing

The shifter won't recognize the brake is pushed so it can't be put in drive or reverse.

I checked the connection on the actuator, all the fuses, and tried disconnecting the battery. I did notice that my backup camera started cutting in and out like 2 weeks ago, so could be related. Also the tailgate release is working fine now, so it just seems hard to believe it was the cause of the short.

I just have no clue what direction to even go next. I was able to get it home by manual releasing the transmission lock but it's definitely not great to drive.

2022 Turbo AWD

Update 5/20/26: I left the battery disconnected overnight and the issue hasn't happened for 2 days now, so I guess it's fixed. I previously tried that, but I had only disconnected it for 5 or 10 minutes, so maybe the memory wasn't cleared.

Was driving thru the city (Chicago) and got waved at by another Santa Cruz, I waved back. Don’t see too many of us here, so it was a surprise

Getting ready for my first oil change and had a dickens of a time finding 0W-30 engine oil. Went to 3 different stores to finally find some and the only type they had was Mobil 1. Even online the availability of this engine oil weight seems limited.

What gives? Why is this oil type so rare and what makes the 2.5L Turbo different that it requires this unusual oil?

**obligatory not responsible for damage to your vehicle**

So i was successful in my attempt to disable bluelink on my 2026 Santa Cruz SEL. It was actually super easy. Pull a fuse to the DCU. I removed my bluelink account from my trucklet then turned it off to pull the fuse. Totally reversible for the dealership. The infotainment system no longer recognizes the modem. The truck complains about me removing myself as the owner but everything works. Carplay, gps, etc. Took an hour drive and no codes either.

I bought a 7 day sub to the Hyundai service manual portal to trace the wiring harness and to investigate how ingrained bluelink is. turns out not that much. Hyundai engineers threw us a bone by having the DCU completely separated from the rest of the system. The antennas are about as hard as you can get to get to so for me at least this was the easiest way to accomplish my goal.

I worked through it with Claude to double check my work and findings. I know, I know AI bad but i needed someone (or something) to double check me. I had it do a technical write up for anyone interested in the bluelink system on the santa cruz with my findings. You can read it below if it interests you.

tldr: Remove bluelink account from trucklet, turn off, pull fuse f18, throw in glove box. Its just a really nice vehicle now.

Its not about stopping all your data from getting out. That's almost impossible. but you can plug a few holes. And if you like bluelink by all means keep using it. I just didn't like it personally.

*i have 7 days left with access to the Hyundai service site. if you need anything and don't wanna pay 40 bucks let me know.

----technical write up follows-----

2022-2026 Hyundai Santa Cruz — LTE Telemetry Disconnect Technical Reference

This technical reference was generated by AI (Claude) based on diagrams and schematics from the 2026 Hyundai Santa Cruz ETM (Electrical Troubleshooting Manual) obtained via hyundaitechinfo.com. All schematic references correspond to the NX4A OB platform.

Vehicle Connectivity Architecture Overview

The Santa Cruz has two separate LTE antenna systems that feed into a dedicated cellular modem called the DCU (Data Connectivity Unit). These LTE feeds are electrically isolated from the AM/FM, GPS, and SXM antenna feeds, which go to the CCNC head unit.

Antenna Routing

Source: ETM Schematic SD969-4 — A/V & Navigation (CCNC/AMP) System (4)

Roof Sharkfin Antenna (P.195) — 4 coax feeds:

Pin	Color	Signal	Destination	Connector Path
1	Black	AM/FM1	CCNC Head Unit	ANT-A → MM31 → MM21 → M11-AN1
2	Blue	Dual GNSS	CCNC Head Unit	ANT-A → MM31 → MM21 → M11-AN2
3	Red	SXM	CCNC Head Unit	ANT-A → MM31 → MM21 → M11-AN2
4	Yellow	CCS1 (LTE1)	DCU	ANT-A → MM31 → MM21 → M19-AN1

Crash Pad Antenna (P.91) — 1 coax feed:

Pin	Signal	Destination	Connector
1	CCS2 (LTE2)	DCU	ANT-C2 → M19-AN2

AM/FM, Dual GNSS, and SXM terminate at the CCNC head unit (M11-AN1, M11-AN2). CCS1 and CCS2 terminate exclusively at the DCU (M19-AN1, M19-AN2). The two systems are completely separate at the module level.

https://preview.redd.it/x13e8ixugj1h1.png?width=1571&format=png&auto=webp&s=30aff91ca09485ff8a8d5d24cfdfd7321cb4ff9c

DCU (Data Connectivity Unit)

Source: ETM Schematic SD955-1 — Data Connectivity Unit (DCU) System (1)

Location: Center of cowl cross bar, behind the main crash pad

https://preview.redd.it/t61m8kjygj1h1.png?width=1014&format=png&auto=webp&s=036bbc63a1dcc98bea3f80893b170c2d127e0a08

Connectors:

Connector	Description	Pins
M19	Main connector	32-pin black
M19-E	Ethernet to CCU	2-pin
M19-AN1	CCS1 coax (LTE1 from sharkfin)	1-pin
M19-AN2	CCS2 coax (LTE2 from crash pad antenna)	1-pin

Key circuit details from M19 (32-pin):

Pin	Function	Wire
16	Ground	0.3B
17	B+ Input	0.3W
23	DCU Reset (from CCU M06 pin 4)	0.22Gr
19	CCU Wake Up (to CCU M06 pin 15)	0.22P

Network connections:

• Ethernet (M19-E) to CCU (M06-E) CAN bus connections: None.

https://preview.redd.it/0m71hlw0hj1h1.png?width=1693&format=png&auto=webp&s=64a344558be4581b360c18aecd32834da4739f07

The DCU has no connections to any CAN bus (C-CAN, E-CAN, P-CAN, B1-CAN, B2-CAN, M-CAN). It communicates exclusively over Ethernet to the CCU. It cannot interact with engine, transmission, braking, ADAS, or any other vehicle control system.

Power supply: Dedicated "HOT AT ALL TIMES" circuit through fuse F18. The DCU can transmit with the vehicle off.

CCU (Central Communication Unit)

Source: ETM Schematic SD200-24/25 — Central Communication Unit (CCU) (1)(2)

Location: Center of cowl cross bar, adjacent to DCU

The CCU is the vehicle's central network gateway. It connects to all six CAN buses and the Ethernet backbone. It is documented here to illustrate that the DCU is a leaf node on the network, not a gateway.

https://preview.redd.it/fhpb1vi3hj1h1.png?width=2050&format=png&auto=webp&s=a2e67efb7c6541b6f4f532cb71ac8f7141f3cf53

https://preview.redd.it/44qq2je5hj1h1.png?width=2055&format=png&auto=webp&s=ddc4ab7c31244616fa401f117811bd151c8cebf9

CCU CAN bus connections (M06, 36-pin):

Pins	Bus
7, 25	C-CAN
5, 23	E-CAN
24, 6	P-CAN
2, 20	B1-CAN
19, 1	B2-CAN
10, 28	M-CAN

CCU Ethernet connections (M06-E, 12-pin):

Pins	Connection
10, 9	ETH_CCNC (Head Unit, M11-E)
8, 7	ETH_DCU (DCU, M19-E)
12, 11	ETH_CLU (Cluster Unit)
3, 4	ETH_ADAS (ADAS Parking Unit, F40)

Disconnecting the DCU removes one Ethernet endpoint from the CCU. The CCU continues to function as the vehicle network gateway for all remaining modules.

Fuse F18 — Wireless DCU

Source: ETM Fuse & Relay Information SD100-1/SD100-2

Location: PDC (Powernet Domain Controller) fuse box, passenger compartment, driver's side, behind the lower crash pad panel

https://preview.redd.it/kgthn6x7hj1h1.png?width=1663&format=png&auto=webp&s=69da93c7bbda93fe2edcb65a5051d7f4d522b908

Fuse	Name	Amps	Circuit Protected
F18	wireless DCU	7.5A	DCU

https://preview.redd.it/gw81jycbhj1h1.png?width=1580&format=png&auto=webp&s=a1d51dbd87663583e57045beeb48ef1ebfb57cde

F18 is a dedicated fuse. No other circuit or module shares it. Removing F18 cuts power exclusively to the DCU.

Disconnect Procedure

Steps:

1. Open the fuse cover on the driver's side lower dash panel.
2. Locate fuse F18 (wireless DCU, 7.5A) in the PDC fuse box.
3. Pull fuse F18.
4. Close the fuse cover.

Verification

Navigate to: Infotainment System → Bluelink → Modem Information

Expected result with F18 removed:

Field	Value
USIM	(blank)
IMEI	(blank)
Network Carrier	(blank)
Network Status	(blank)
Signal Strength	0 dBm

https://preview.redd.it/ld30cc8whj1h1.jpg?width=2541&format=pjpg&auto=webp&s=aa290994f294991551215dbb1f42eaaf660b2f05

Systems Unaffected

The following systems have no dependency on the DCU and are unaffected by removing F18:

• CCNC Head Unit (CarPlay, Android Auto, Bluetooth, WiFi, AM/FM, SXM, GPS Navigation)
• All audio (speakers, amplifier)
• Cluster unit
• All ADAS systems (FCA, LKA, BSM, RCCA, HDA, SCC, parking sensors)
• Engine management
• Transmission
• Braking (ABS, ESC, EPB)
• Steering (MDPS)
• Lighting
• Power windows, locks, seats
• Climate control

Systems Affected

• Bluelink remote services (remote start, lock/unlock, vehicle locate via app)
• SOS / eCall (emergency cellular calling)
• OTA software updates
• All cellular data transmission to/from the vehicle

Reversibility

Reinstall fuse F18 to restore full DCU functionality. No reprogramming or dealer visit required.

ETM Reference Index

Schematic	Title	Relevant Content
SD969-4	A/V & Navigation (CCNC/AMP) System (4)	Antenna routing — AM/FM, GNSS, SXM, CCS1, CCS2
SD955-1	Data Connectivity Unit (DCU) System (1)	DCU connections, power, antenna inputs
SD200-24	Central Communication Unit (CCU) (1)	CCU power, wake-up, D-CAN
SD200-25	Central Communication Unit (CCU) (2)	CCU CAN buses, Ethernet backbone
SD100-1	Fuse & Relay Information (1)	PDC fuse box layout
SD100-2	Fuse & Relay Information (2)	PDC fuse table — F18 entry

Applicability

• 2022-2026 Hyundai Santa Cruz (NX4A OB) — all trims and engine variants
• The Hyundai Tucson (NX4, 2022-2026) shares the same platform and likely has a similar architecture, but should be independently verified via ETM before applying this procedure

I am looking to buy a santa cruz but I am unsure of the rear space. My wife is 5ft 8in. Would a baby seat rear facing would fit behind her.

Anyone with experience on this?