U2105 on Chevrolet
On Chevrolet and other GM vehicles with the GMLAN network, U2105 is a network code meaning another module lost communication with the engine control module
Severity: Inspect soon
Owners report power steering loss, loss of engine power and stalling with this code, so steering and drive power can be affected and the car needs a prompt inspection.
It gets more serious if:
- Stop: Stop if power steering is lost, the engine loses power or stalls, or the car goes into limp mode: pull over safely and arrange a tow.
This page covers only what differs on Chevrolet. For what U2105 means, the ranked causes and the test order, see the U2105 guide.
What's different on Chevrolet
ChevroletYour car
2005–2008 · Cobalt
Supported by vehicle dataBulletin summary for power steering loss lists U2105 and U2107; owners report the same codes.
2005–2006 · Equinox
Supported by vehicle dataBulletin summary lists U2105 with no-crank; an owner reports limp mode with U2105.
2005 · Corvette
Supported by vehicle dataU2105 with U2100, U2107 and U2108 and stability warnings.
07-02-32-007Status unverified
Diagnostic tips for power steering inoperative, DTCs including U2105 and U2107
2005–2008cobalt, hhr · issued · NHTSA 10022958
Gives diagnostic tips for a power steering that stops working with those codes. Only the NHTSA summary was read.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
02114Status unverified
No crank with loss of communication to several modules, DTCs including U2105
2005equinox · issued · NHTSA 10007456
Covers a no-crank with loss of communication to several modules. Only the NHTSA summary was read.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
Sources and review
- GM 07-02-32-007 (NHTSA 10022958): diagnostic tips for power steering inoperative, DTCs including U2105 and U2107
- NHTSA complaint ODI 10251915: 2005 Chevrolet Cobalt
- GM 02114 (NHTSA 10007456): no crank with loss of communication to several modules, DTCs including U2105
- NHTSA complaint ODI 10176882: 2006 Chevrolet Equinox
- NHTSA complaint ODI 10382088: 2005 Chevrolet Corvette
- Last reviewed
- Written by
- Saurabh K.
- Editorial review
- Pending
- Technician review
- Technician review pending
This page explains what a code usually means; it is not a substitute for a professional inspection. How we source and review · Report an error