I have a 2016 Buick Lacrosse. About 6 months ago (in the heat of the Texas summer with 100 degree temps the norm) I started getting a message that...

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Customer

I have a 2016 Buick Lacrosse. About 6 months ago (in the heat of the Texas summer with 100 degree temps the norm) I started getting a message that my rear view camera system needed servicing. It was a message that appeared on my console screen. Eventually, the screen quit working. Now, with the cooler temps, the screen has begun working imtermittently, and will quit once the car warms up. The screen is now most likely to work when the car has been sitting longer in colder temps. So, I'm thinking it has to be some sort of relay or fuse, that is, hopefully easy to find and replace. What say you?

Last updated
Relly De Jesus
Buick Mechanic

Hello and welcome to ExpertHelp.com! My name is Relly De Jesus and I'm going to do everything in my power to answer your question to your full satisfaction!

Before we get started, I want to remind you ExpertHelp.com is an independent professional support company. We are not associated with BUICK nor are we paid to provide support on their behalf. However, we have helped hundreds of customers with similar questions and believe we can help you too. OK, let’s get started! :)

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Posted
Relly De Jesus
Buick Mechanic

Hello Dave

How are you doing! This is a common issue on all brand and makes of vehicle Dave. As a first course of action, I strongly suggest that you remove the negative battery connector of your vehicle and let it sit for 5 minutes before reconnecting it. This will drain the current and reset the system and may get rid of the issue. Hope this helps.

I'll be standing by for your response. Have a great day!

Relly

Posted
Relly De Jesus
Buick Mechanic

Incase it fails Dave try to locate the fuse #53 on the diagram. 

 

 

https://www.autogenius.info/wp-content/uploads/2017/01/Buick-lacrosse-fuse-box-engine-compartment-2016.jpg

1 Transmission control module–battery
2 Engine control module battery
3 A/C clutch
5 Engine control module/Run/Crank
6 Wiper
7 Long range radar/ Front camera
8 Ignition coils–even (6–cylinder engine)/ Ignition coils–all (4–cylinder engine)
9 Ignition coils–odd (6–cylinder engine)
10 Engine control module–switched battery
11 6–cylinder Engine: post catalytic converter/O2 sensor/ Heater/Mass air flow sensor/FlexFuel sensor/Secondary air induction solenoid
12 Starter
13 Crank for transmission control module/Fuel pump power/Chassis control module (eAssist)
14 Cabin heater coolant pump (eAssist)/ secondary air injector/Secondary air injector with pressure sensor
15 Motor generator unit coolant pump (eAssist)
16 Run/Crank for eAssist power inverter module
17 —
18 Sunshade module/ Vehicle air purification system/ Ventilated seats
20 Heated steering wheel (non eAssist)
21 Rear power windows
22 Sunroof
23 Variable effort steering (if equipped) or eAssist power inverter module
24 Front power windows
25 Rear heated seats
26 Antilock brake system pump
27 Electric parking brake
28 Rear window defogger
29 Heated seat/Left power lumbar
30 Heated Seat/Right power pack cooling fan (eAssist)
31 AWD/Electronic suspension control
32 Body control module 6
33 Memory seat–front
34 Antilock brake system valves
35 Amplifier
36 Adaptive forward lighting (AFL) motors–battery
37 Right high-beam
38 Left high-beam
41 Brake vacuum pump
42 Cooling fan K2
43 —
44 Transmission auxiliary oil pump (eAssist)
45 Cooling fan K1
46 Cooling fan relay
47 6–cylinder engine: Pre-catalytic converter O2 sensor heater/Canister purge solenoid. 4–cylinder engine: Pre and post catalytic converter O2 sensor Heaters/ Canister purge solenoid
48 Fog lamps
49 Fog lamps
50 Left HID headlamp
51 Horn
52 Cluster Run/Crank
53 Run/Crank for: rearview mirror/Rear vision camera/Air quality sensor/Aero shutter motor
54 Run/Crank for: HVAC/Headlamp switch
55 Outside rearview mirror/Universal remote system/Front window switches
56 Windshield washer
59 AIR pump
60 Heated mirror
62 Canister vent
64 Adaptive forward lighting (AFL) module–battery
65 —
66 AIR solenoid (eAssist)
67 Fuel pump power module/Chassis control module
69 Regulated voltage control sensor
70 Parking assist/Side blind zone
71 Passive entry/ Passive start

 

Hope this helps. I'll be standing by for your response Dave. Have a good one

Relly

Posted
Customer

Thanks!  I'll give them a shot.

Posted
Customer

Yes, it seems to be a common issue.  I'll try the battery thing and then the fuse.

Posted
Relly De Jesus
Buick Mechanic

Great Dave. I'll be standing by for your response. Have a good one!

Posted
Relly De Jesus
Buick Mechanic

Notes

- called Dave for follow up, left a voice message

Posted
Relly De Jesus
Buick Mechanic

Hello Dave

How are you doing? This is just a follow up regarding the solution I provided. I'll be standing by for your response.

Have a good one!

Relly

Posted
Customer

 Relly, this is interesting.   The touchscreen has illuminated and has stayed illuminated for the past week and a half without fail.    This has to be a temperature related problem .     The unit started acting squirrely in the beginning of summer, quit working on one of the hottest days of the summer, on the only day in months that I went to the mall, parked in a mall parking lot, bumper to bumper in the hot sun.   Yes, this is when i quit working completely.  And then, months later, as we began to experience colder winter temps, the unit began working intermittently, mostly when the car had been cold and idle for a long period of time.  Now, after a month of cold weather, the unit is working consistently.  Doesn't this sound like sort sort of relay or other electrical component?  It does to me, but I don't have the schematic in front of me.  Thanks for your help'

Posted
Relly De Jesus
Buick Mechanic

Great to hear that Dave and youre most welcome. This may be a relay or module issue that when hot the issue may  occur. Sometimes once resetted this issue may not reoccur for a very long time. But let me see what I can do if I can find some schematics for you. You may want to leave me your email for some times the file is big that I may not be able to post it here. Thank you and have a great day!

By the way Dave if you can click on the Accept Answer button and click on the problem solved I'll greatly appreciate it. Thanks once again and I'll check my files for the schematics that you may use in the future.

Have a good one!

Posted
Relly De Jesus
Buick Mechanic

Hello Dave hope everything is well. I've been talking to my colleagues about the issue as well. We figured that if it fails again, it's either you will replace the rear view monitor or the back up camera for it may fail over time, hope you still have warranty for the car. But during hot temp it may fail right? The one at fault can be on the rear view monitor because it is being hit directly by the sun and absorbs so much heat that's why it is failing.

Hope this helps Dave. Is there anything else I can add or help you with?

I'll be standing by for your response

Thank you

Relly

Posted
Relly De Jesus
Buick Mechanic

Hello Dave hope everything is well. I've been talking to my colleagues about the issue as well. We figured that if it fails again, it's either you will replace the rear view monitor or the back up camera for it may fail over time, hope you still have warranty for the car. But during hot temp it may fail right? The one at fault can be on the rear view monitor because it is being hit directly by the sun and absorbs so much heat that's why it is failing.

Hope this helps Dave. Is there anything else I can add or help you with?

I'll be standing by for your response

Thank you

Relly

Posted
Relly De Jesus
Buick Mechanic

Hello Dave

How are you doing? Is there anything else I can add or help you with? I'll be standing by for your response. Have a great day!

Thank you

Relly

Posted
Relly De Jesus
Buick Mechanic

Hello Dave

How are you doing? Is there anything else I can add or help you with? I'll be standing by for your response. Have a great day!

Thank you

Relly

Posted
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