Factory undercoating is peeling off!!

TJay74 · March 25, 2014

The warranty would not be void if you had it repaired outside of the dealership. I would go back to the dealership ask for the service manager and the general manager advise them there is a TSB out on the frame coating coming off and demand it be repaired. If they try to come up with an excuse then request they contact the GM regional warranty rep and get them involved. If that still doesn't get you anywhere then open a case with GM customer Care and I am sure they will get the dealer on the same page.

My guess is the batch of affected frames had surface contamination before the hot wax dipping process causing the wax to not bond properly to the frame.

LifeisthePits · March 25, 2014

Thanks so much for replying. So here is the big question. Dealership can't repair it. Warrenty is void by having a professional touching it. What do we do?

From what I can see we have 3 options:

1) Continue to go to the dealership to try to have the problem fixed and have everything documented so that if gets too bad you have a lemon law claim.

2) Say screw the warranty and do it yourself or take it somewhere to have it done right.

3) Don't do anything and pray that the rust never gets too bad, these are heavy duty frames.

Obviously none of these options are what we want but I have yet to find another one. The real problem is the rust has started, if that isn't handeled correctly the coating is a non-factor. Hopefully the 3rd time is a charm for me and they can at least remove the rust and treat the metal so it doesn't come back.

bladz1454 · March 25, 2014

I noticed a good amount of rust under my truck too this weekend... very surprising... NOT

Skidoojc · March 25, 2014

GM posts releases like this yet my 600 mile truck is rusting all over the frame. http://media.gm.com/media/us/en/gm/news.detail.html/content/Pages/news/us/en/2013/Sep/0905-silverado.html

LifeisthePits · March 27, 2014

Just a quick update, 3rd try was yesterday with the same non-fix applied. I tried speaking with the GM this time to solve this situation without legal nonsense involved. I just asked them to contract a 3rd party undercoating professional to handle it once and for all and he told me they wouldn't do anything like that and just lemon law it as he walked away wihtout letting me give a response or even a handshake.

Real scumbags at the head of some of these places.

TJay74 · March 27, 2014

Have you contacted GM customer care about this yet? With an active TSB in place sounds like your dealer needs a visit from the regional GM person so they understand how they are supposed to handle warranty work.

Skidoojc · March 27, 2014

So far I've been told that new trucks with zero miles have rust that's how it is. Well someone better get there head outta there ass! GM will re own this thing. Anyone got the TSB number available?

bladz1454 · March 28, 2014

taking my truck in Monday to have the rear end and this under body rust looked at, ill keep yall posted

LifeisthePits · March 29, 2014

After the third attempt in service I decided to take the General Managers advice and contact a lemon law lawyer. They looked at the paperwork and said it's the 4th case already this year for the exact problem on 2014 Silverado's. GM is not interested in really fixing the item, they are hoping most people don't notice or bother to bring it in because it's still cheaper to have to take back a fleet of vehicles from Lemon Law that it is to really fix the issue for everybody via recall.

bladz1454 · March 31, 2014

.... brought my truck in this morning and had them look at all the (what was perfectly black frame rails) rust underneath my truck and they said its "surface rust and is completely normal"... ummm should I be fighting this?

Bought the truck in November, has 3600 mile on it.

mike94silverado · April 6, 2014

I always touch up mine with a rattle can works fine

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calgator73 · April 13, 2014

I'm engaging on this issue Tuesday morning. Never seen so much rust except on my grand father's 73 gmc.

Silver space ship · April 21, 2014

I work at a body shop and ALL the chevy and GMC truck frames I see have rust, just had the box off a 2012 and tons of rust! My 14 Silverado that I traded off had rust that I noticed in about 8 months but more then likely started earlier then that. It's not a bad batch it's a bad system, they should have stopped this wax dipping years ago. If you want a good looking frame years down the road buy a Ford, they paint the frame and it holds up nice. GM knows this doesn't hold up so it must be a money saver for them and that's why they keep doing it. Honestly we put 90% of the vehicals that come into our shop on a hoist to work on them and I look at every truck that comes in. I've seen a 05 f150 that was in the shop for body rust but the frame was cleaner then my 2014, actually almost no rust to speak of, in a state the salts the road like a fat man salts corn on the cobb.

calgator73 · April 21, 2014

body shop ordered the kit prescribed in the tsb. They get three attempts. Hope they get it right or I guess they will buy the truck back. My 07 was like you described. Nearly flawless frame after 7 years and 100k miles.

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jcchevy · April 22, 2014

I posted pictures and info about this same issue here: http://www.gm-trucks.com/forums/topic/158871-rusting-frame/page-3?hl=undercoating

Getting mine fixed at the moment.

After the third attempt in service I decided to take the General Managers advice and contact a lemon law lawyer. They looked at the paperwork and said it's the 4th case already this year for the exact problem on 2014 Silverado's. GM is not interested in really fixing the item, they are hoping most people don't notice or bother to bring it in because it's still cheaper to have to take back a fleet of vehicles from Lemon Law that it is to really fix the issue for everybody via recall.

From the sound of round 1,2 and 3 they did not follow the process even close. They (your dealer) cut corners hoping you would be ok with the quick spray over etc...while at the same time charging GM mothership for the full work effort needed to complete this.

Read through the steps, there should be no rust flakes etc.. showing. Its not simply a paint over. its a rather lengthy ordeal (suppose to be) to resolve it correctly.

My dealer also stated this warranty fix/TSB is a one time thing. If the frame rust out bad again in 3 years, this can't be covered under warranty again. FWIW

STEPS DEALERS MUST COMPLETE VIA TSB

Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in SI.

If labels are in the area to be reworked, remove any of the visible white labels on the frame (usually one per side).

Remove any components as required to gain access to the corroded component or area.
Determine a start and finish point on each side for the section/area of the frame to be repaired.
Using a rag and wax/grease removing solvent, remove the wax coating and any grease, oil, or undercoating from the truck frame in the affected repair area. The graphic above shows an example of a small portion of the wax coating removed.
Any loose rust or loose flakes should be scraped, wire brushed or ground off.
Remove any residual wax, oil or rust by wiping the frame down with a towel or Scotch-Brite™ (3M) pad soaked with wax/grease remover.
Using Lloyd’s Pure Prep™ Metal Surface Preparation P/N 25418 (10 fluid ounce bottle), or equivalent, saturate a towel or Scotch-Brite™ (3M) pad with the pre-diluted solution and scrub the area well, rendering a foaming of the Pure Prep.™ This will greatly improve adhesion and corrosion resistance in the repair areas.

Using a water dampened clean towel, remove any residue and dry the affected area. Dry the repair area completely using an air hose to blow dry the frame.

Check the repair area for phosphate treatment by wiping it to see if any corrosion residue can be picked up. Correctly treated areas will not have any residue on the surface.

Apply a light flash-coat of Lloyds Kryptonite Metal Treatment P/N 36502 Life Long Rust Protection (14 ounce aerosol), or equivalent, to all rusted and bare areas of the frame where the wax coating was removed. This first coat should flash in approximately 3-5 minutes.

Apply a second coat of Lloyds Kryptonite. This can be a heavy coat; double and triple passes with this product, over a light first coat, are not a problem.
Note: Dried Lloyds Kryptonite will perform beautifully over time and actually get harder and more durable as it experiences heat.

We suggest top coating the Lloyds Kryptonite with Daubert Nox-Rust® P/N X-121B “One Coat Rust Preventative Coating” (aerosol), or equivalent.
Note: As shown in the graphic below, besides adding a corrosion resistant layer, it dries to firm, wax-like film which will more closely resemble the appearance of the unrepaired areas of the frame.